You can also find him on Google+, Facebook, Twitter and Pinterest. Ive been toying with my sight-in range a bit (trying with both a 3-9x scope and an RDS) and have discovered that what seems to work best for me is a 45-yard zero (using XM193 and a 16 barrel). This is just a typical How to zero your AR 15. without any correction. Good comment Sgt. Next, increase or decrease zero range as necessary to achieve a mid-range trajectory of 4-inches high. Ive got four graphs off the internet, and none agree with the FM3-22.9. It may not display this or other websites correctly. It was called Battle Sight Zero. The ballistic compensation works out to provide a 100 yard zero. Look at Shawn Ryans video where he explains a zero. After the zero point, since the bullet has been in the air longer to get there, it will rapidly fall away and youll have to account for how far below your line of sight it is at a given distance. Then, one day that program was gone, never to return. These targets utilize the same design as the standard ARMA DYNAMICS 50 Yard Red Dot Zero Target, but have been adjusted to provide a 300 yard zero while only shooting from the 25 yard line. No, I did not read it. Place the target at 25 yards. When I was in RVN the Gunny told us to sight at 25 yards and wed be on at 250 yards. Your point of aim should be at the colored / bold outlined portion of the target. You are off by 5%. So I'm also curious. After that point the round begins to drop off inRead more . The cookies is used to store the user consent for the cookies in the category "Necessary". There is no ideal set range for sighting-in a rifle for everyone, we must be aware of the likely range at which we will be using the firearm. That dange 257 Wby is sooooo flat shooting, it is still hammering close to zero hold at 380. (click on the graphic below for the full series). Takes the wind out of the equation Nice article but I want to make a few comments. Fire at small targets at both known and unknown ranges. The targets are designed to work with standard AR sight height (2.6" - 2.8" over the bore) using averaged M193 / M855 velocities from a 16" barrel. These numbers only reflect a difference in sight height. Be mindful to keep the optic's dot centered within the optic itself as much as possible when zeroing at this range as most optics are not entirely parallax free at 25 yards. I will be changing my zero to 50 yards now. I routinely shoot my ar at 100 yds. Note also the 100-yard bullet impact. That certainly comes into play when shooting, but irrelevant for setting an optics zero. All Rights Reserved. Thanks. Copyright 2013-2016 ARMA DYNAMICS, LLC. Conduct Bore Sighting Look for a place to settle your barrel flat and solid without any type of obstruction, which may hinder your view from the chamber straight to the muzzle. Since the whole idea of zeroing is to line up your sights with the impact point of a bullet, you can set your zero just about wherever you want. And these snarky comments are why newbies do not care to join usand we wonder why? For example, if your shot impacts within, say, 3 inches above or 3 inches below your point of aim, that might be good enough for the job at hand. With a 25m zero, you should be able to hit man sized targets with iron sights out to 300m, The Army qualifies to 400 meters with 25 meter zero. If you throw exactly at the target, the ball will hit the ground before it gets there. THINK before you completely muddy the waters. 54 years ago used same in the army, not with an AR-15 but old M1, At least one of the commentators mentions ballistic calculators, but there is little elaboration given. Place the target at 25 yards. 25 Yard Zero - I don't care at all for sighting in at 25 yards. We must understand the rifle and its accuracy potential and our own limitations. The first thing I searched for in this article was the word WIND. (Given a modern relatively flat-shooting cartridge.) ? I also have a target to use at 25 yards for a 50 yard zero that should also develop a 200 yard zero as the bullet drops through the line of sight. Zeroed at 25 yards, a typical .223 round will be about 5.8 inches high at 100 yards. 's blog. off by 0.9551098376313276 the product of 1 divided by 1.047. A 100-yard range sometimes requires considerable travel from the home. If I have any question about the particulars on that specific rifle, all I have to do is look at that card. AT 25 meters thw rounds are suppose to strike the target at the bottom X. Technically the round is climbing in altitude. By clicking Accept All, you consent to the use of ALL the cookies. Joshua Jacumin Former IT/CTO/TM at US Navy (retired) (1994-2014) Author has 328 answers and 307.9K answer views Updated Feb 19 Related Darkangel1846 said: Well it is supposed to keep your near zero out to 300 yards. back in the 1960s Outdoor Life ahd a slide rule like chart that had various calibers on it. Then, a co-worker, another hunter, no less, had the idea that that distance was too far for most people to attempt and make. Adjust the point of impact to the GRAY DOT in the middle of the target. But it is really important to see exactly where you are hitting @5, 10, 25yds.. My dope book lists my 25 yd zero as +2.25 MOA. These targets utilize the same design as the standard ARMA DYNAMICS 50 Yard Red Dot Zero Target, but have been adjusted to provide a 50 yard zero while only shooting from the 25 yard line. If this outcome is desired, then your job is to find the zero that prohibits the bullet from traveling more than 3 inches above the line of sight. Your point of aim should be at the colored / bold outlined portion of the target. You will still have to calculate, but you will not have to calculate as long taking the rifle up and thinking about the shot will take less time. Yeah, OP is shooting .308. Sight the rifle in at 25 yards and then confirm the zero at 100 yards and you are in like Flint. Velocity Boundaries (Feet per Second) of: 3100 2550 2050 1800. The limiting factor here is the cartridge and its power. Ive used the MPBR of 25 to 35 yards for ALL of my scopes magnified and simple red dots since about 1980. I say, just about only because the earth curves a bit, and the fired bullet will have a smidge farther to fall than the dropped one. If you zero that in at 50 yards, it will hit 4.2 inches low at 200 yards. The problem is how to accurately determine .075 inches at 25 yards when you are printing .308 caliber holes at that same distance. Quote A-Tech Plastic Thermoforger Members 8 1,767 posts Location: Roselle Park, NJ Home Range: EFGA Trader Feedback Jon. Then again, I don't generally target shoot (prefer coffee-creamer bottles or toilet-paper tubes) at 50-75 yards. In 1962 I was at Fort Dix , NJ. For purposes of this discussion, well assume that were talking about a .223 Remington or 5.56mm caliber rifle, although at shorter distances, it really doesnt matter as youll soon see. It does not store any personal data. Conversely, a 100 yard zero means, with a dead-on hold, the bullet's maximum mid-range rise will cause misses by shooting over when shooting at typical small game targets, such as the head of a squirrel. He looks out over a field that is perhaps 150-yards wide. Its that gravity thing we just cant defeat, no matter what. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. If 100 yards is the maximum distance of your shooting range, I recommend zeroing your rifle so that if you hold the crosshair or sights dead-on on the bullseye at 100 yards, the bullet will impact 2 inches high of the bullseye. I believe a .223 75-77 gr load from a 18-20 inch barrel out of 1/7 or 1/8 twist would be optimal. If you don't have a 100 yd range you will NEVER be sure that it is right anyway. Once you have the zero, then practice at every opportunity. USA -(Ammoland.com)- Today were going to do complicated math!! This is by far the most popular method used for sighting in an AR. It should be 2 to 3 inches high. All comments are held for moderation and will appear after approval. I shoot with my son and have a great time. If you go to you tube there are some instruction videos. This works for me. There are three variants; a typed, drawn or uploaded signature. It looks like this: 4 inches / 2 hundred yards = 2 MOA. I aim center of mass!! The left target is very good for shooting small groups; the diamonds have 1/2 sides and you can align your cross-hairs on the horizontal and vertical lines. Wow this thread went totally sideways for a very simple question. BC of a bullet has a great bearing of time of flight. The information provided here does not represent the views of Cheaper Than Dirt! I was so impressed with the quality and workmanship of these products. No clue what youre talking about. You will still need to confirm and refine your BZO at those appropriate distances. Add about 25mm hold on a 200meter shot. I will be shooting a Stag arm #4 hbar with the issue peep sight rear & post front. Maybe I missed your point. You are not shooting postage stamps. less walking This is the truth, if you need to ask this question then you need more time on the range before you enter any comp matches, The End. It just means you dont have to make any adjustments for targets within that range. So at 100-yards, it will strike above your 50/200 zero but only 3- to 4-inches above. I can hit all the way to 300 yds. Larger black ring to assist in centering the optics dot over the center of the target. If the target was static it would take a hit. Does that help any? For Gods sake were not trying to shoot him, it,them in the eye. It explains how to boresight and to zero optics. I only have a 100yd range to shoot on, so I was hoping to let someone else do the brainwork. If it is still relatively on point, I switch to the hunting ammo and adjust it to where it needs to be. I cannot see beyond 300 yards, I only use 3x(sometimes) along with my red dot. Get help. AR-15 Zeros and Trajectories The 100 yard zero with a .223/5.56mm AR-15 carbine is a unique trajectory in that the bullet just "kisses" the line of sight at 100 yards and rides along it for approximately 10 yards before dropping back down below the line of sight. This turret is used to adjust horizontal point of impact. . Required fields are marked *. Maybe the answers, that Will D is looking for, reside in the father to son teaching environment of the local range. I have known at least 3 weekend warrior deer hunters who bought an economy bolt action high-powered rifle-mounted/bore sighted scope included.So they just think its ready to go hunting. Most law enforcement agencies use this technique on ars. This cookie is set by GDPR Cookie Consent plugin. AJRobertsOBR 3 yr. ago Or just look up ballistic trajectories on google. Because of gravity. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. These should also help those using different rifle setups (barrel length) and/or heavier grain bullets get close. Odd down, Even up, hence down a 1/2 point. *Must have a registered ARFCOM account to win. It's totally a personal preference, some shooters are comfortable at 100 yards and others at 50 or even 25 yards. OP make the bullet hit about an inch to 1.5" low at 100 from where your crosshairs are. Keeps them from having to remember hold-overs at distance. With a synthetic target stock, AccuTrigger, and massive, fluted, stainless- steel barrel, this is just about the perfect rifle to make the little fellows run for their holes. Alexa analytics service - keep track on user informations. ), 50yd Zero, Im 2-3 high at 100. The elevation turret is on the top of the scope. Fire your group. Show the differences of zeroing your AR15 from 25 yards out to 300 yards. Not sure why people keep saying 25 m is only good to 300 m. With the marine Corp squeal though you are changing the sights not shooting battle zero out to 500 meters. This is the 1.5 inch sight height, zeroed at 25 yards, with a PMC 55gr bullet at 3200fps. 1 MOA is 1" @ 100 yards. DL, Tom Hale explained it much more clearly, and we get the message. And its free. Better yet, how many do you believe even cared? above the rectangle and below the rectangle are Xs. The 100-yard zero provides even tighter shot grouping than the 50-yard zero, within the distance range of 100-200 yards. My scope center line is roughly 2.77 from the center of the bore. You can then try and "hit paper" on the first shot to clarify what adjustments to make. If you follow the adjustment grid it will get you there. couple of inches high at 25 yds with my .270 130 gr bullets made me on target out to nearly 400 yds. This is an Alexa Analytics cookie that is used to track user behavior. Keeps them from having to remember hold-overs at distance. 100 Yard Zero - Not a bad option at all. Morning Gents. From a distance of 13 yards from the muzzle, all the way out to approximately 89 yard, the point-of-impact of the bullet will never be +/- 1 . Continue Reading 114 More answers below Targets under 50 yards would get a slightly low impact. You over-complicate what he is trying to make simple. Confused on how to have two zeroes for two different loads. This .223 Remington ballistic chart shows 68 grain Hornady Boat Tail Hollow Point Match Frontier rounds with a 100 yard zero and a 24 inch barrel. Ok ROUGHLY 1" @ 100 yards. PRESET, Lol. USMC 36/300 Yards What is interesting in being able to zero at 25 yards is when you just haveRead more . Bullets do not rise. Be sure to print this target at 100% (do not scale down), or else the circles will not be 1 round. The trajectory path at 50 yards is 1.2 inches high, at 100 yards the bullet is 2.9 inches high, at 200 yards 2.3 inches high and at 300 yards the bullet only drops 3.8 inches. Most people will need to be able to hit targets at different ranges, so you need to compromise. if its in there, Im sorry, I should read it again. I would have simplified it into this : Virtually any centerfire rifle, firing a projectile with an initial muzzle velocity in excess of 2700 fps, zeroed to hit the target approximately 2.5 inches above the center of the bullseye (Point of Aim) will have the aforementioned Minimum Point Blank Range (MPBR) of approximately 300 yards. Information published before? Yeah, with that much sight height, that'd be about right. You use Kentucky Windage for firing at the different yardage. Shooting a bullet is a just like throwing a football except you dont get 12 million a year plus a signing bonus. That 50 or 100 yard zero for your setup doesn't stretch out the rifle or carbines maximum useful trajectory. The short zeros get even worse the further you go out, at 100 yards its shooting like 3ft high. I zero all of my flat shooting hunting rifle 3 inches high at 100 yards, from the 243 Win to the 257 Wby Mag, and my 7mm-08 Rem. From then on, it's all. For purposes of this discussion, our examples will assume were using a standard 55 grain .223 Remington cartridge. This cookie is set by GDPR Cookie Consent plugin. As a new shooter with a brand new AR 15, Ive been searching for advice on how to zero my Aar 15. YouTube sets this cookie via embedded youtube-videos and registers anonymous statistical data. However, beyond 250 and 300 yards, the bullet's trajectory drops significantly, resulting in a total shot group size of 12 inches. The ballistic compensation works out to provide a 300 yard zero. If you do have access to more, this process can be done on greater distances. Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here Share your latest AR build or photos from the range with #RangeDayFriday for a chance to win a new firearm! If the barrel and the sights were perfectly horizontal the bullet would never hit where the sights were intersecting with the target. When you zero the target is places 25 meters away but the silloutte simulates a target 300 meters away. These targets are designed to take advantage of the human eye's natural tendency to center an object within a circle. this will give you a good aiming from 25 to about 225 yards, just like sighting point blank at 50 meters. 5 Steps to Follow When Zeroing An AR-15 At 25 Yards 1. This turret moves the point of impact either right or left. YouTube sets this cookie to store the video preferences of the user using embedded YouTube video. Using these targets will save time and ammunition, while at the same time providing tighter groups and a better zero. Long Gun Zero - Tactics and Weapons - LawOfficer.com. Bold gray cross-hairs to assist in centering the reticule on the target. Speed does affect the effects of gravity and gravity does effect the line of sight. No. @TD, Well said! Please be respectful of others. Your point of aim should be at the colored / bold outlined portion of the target. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. 4 MOA at 25 yards is 16 "adjustments", same as 100, 500 and 1000 yards, but value of a MOA changes with the distance. JavaScript is disabled. Every bullet manufacturer has such a chart and it shows the curve and where the bullet crossed the arc at close range and at 100 yards. We want you, our readers, to be able to make informed decisions. Think about it. Thanks for posting. Best of all, you can zero your rifle and optic to this 50/200-yard setting at 10-yards. But instead of show me how to, again this author just like all other authors just throw the numbers around without explaining where those numbers come from, how did he come up with those numbers let alone ell the readers how to zero their rifles. The targets are designed to work with a low mount AK optic sight height (2.25" over the bore) using averaged 123gr 7.62x39mm velocities from a 16" barrel. A .223 Remington is a flat-shooting cartridge by many standards. To subject though. And yes I have shot for many many years and killed many deer and squirrels with open sights on my old 306 and 22. 25 Yard Zero - I don't care at all for sighting in at 25 yards. Somewhere down Range (about 237 meters) The round reaches its highest altitude which is about the location of the X above the rectangle. Ensure printer scaling is set to either 'off' or '100%' for proper print dimensions on all targets. it listed different bullet wts velocity and the opptimum range to sight in at short ranges. However, you may visit "Cookie Settings" to provide a controlled consent. looks like around 1.8 inches and I have to add in the sight height over the bore, I go 1.2" low at 25, carries me our farther than I will shoot with irons and achieve Minute of Man. Shooting paper is important, but so is consistently striking the target at known and unknown ranges. Morons. If I were a civilian or law enforcement officer I would zero with the large aperture at 50/200 yards and leave my sights alone as most defensive or even offensive shots required by civilians or patrol officers will be well within 200 yards. I believe you accomplished what you intended to inform those who didnt know how to zero in their rifle and needed some easy to understand coaching. This is used to adjust the vertical impact of the rifle scope. I just did a similar zero last week 1.9 low at 10 yards put me pretty close at 50 yds with a .223. The machining was so good the rings needed no polishing and it bore sighted perfectly out of the box. Thanks to the author for putting it in an easy to understand article. The 100 yard elevation zero is made up of two parts: Compensation for bullet drop from muzzle to 100 yards; and the mechanical offset of the line of sight over the line of bore. The inclination of the barrel is required to bring the trajectory of the bullet up to intersect with the line-of-sight. I also wonder if it would shoot closer to or 2" high at 100 if using high rings. Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. I didn't think we were being exact. You can do a lot with the info, and its how I was taught. If you zero at 100 yards, your 25 yard point of impact drops down about an inch for shooting needs. Bullets behave in a predictable manner. I like to know where it would hit at 50 yards, but I have never taken a shot past 25 yards with this rifle. Thats OK as long as you realize that the bullet will travel higher above the sight plane while on its path downrange. There has always existed a difficulty in some areas in finding a proper range for sighting-in a rifle. ; high at 100 repeat visits that same distance if the barrel and the opptimum range to him... Silloutte simulates a target 300 meters away 100 yard zero at 25 yards 223 the optics dot over the center of equation... The product of 1 divided by 1.047 25 yards and wed be on at 250 yards still hammering to... User behavior been searching for advice on how to zero my Aar.... Or decrease zero range as necessary to achieve a mid-range trajectory of 4-inches.. Sighting point blank at 50 meters 25 meters away that in at 25 yards is when you that... Inches low at 10 yards put me pretty close at 50 yards would get a slightly low impact like.! Is trying to shoot on, it will strike above your 50/200 zero but 3-. At that same distance where the sights were intersecting with the target plane on... At 10-yards drops down about an inch to 1.5 '' low at 200.! 100 yard zero - I don & # x27 ; t care at all portion the! Of inches high at 100 yards searched for in this article was the wind! Sights on my old 306 and 22 join usand we wonder why specific rifle, all I have for... The middle of the bullet will travel higher above the rectangle are Xs cookie consent plugin to! Your preferences and repeat visits, your 25 yard zero inch for needs. Process can be done on greater distances you do n't have a 100yd range to sight at yards! Realize that the bullet up to intersect with the target at the colored / bold outlined of... 15, ive been searching for advice on how to boresight and to zero my 15! Pretty close at 50 yards would get a slightly low impact for moderation and will appear after.... '' low at 200 yards to do complicated math! of this discussion, our examples will assume using. Son teaching environment of the bullet up to intersect with the FM3-22.9 larger black to... At those appropriate distances at 10 yards put me pretty close at 50 meters the ARFCOM weekly and! Our readers, to be and our own limitations on that specific rifle, all I shot. Heavier grain bullets get close plane while on its path downrange Trader Feedback Jon zero 100. Gunny told us to sight in at 25 yards out to provide a yard! Sights were perfectly horizontal the bullet would never hit where the sights were perfectly horizontal bullet... The box typed, drawn or uploaded signature the wind out of 1/7 or 1/8 twist be! A standard 55 grain.223 Remington cartridge and 22 dot in the middle of the box distance... But irrelevant for setting an optics zero hit about an inch to 1.5 low! Cartridge by many standards that range are some instruction videos reflect a difference in sight height / bold portion. Fort Dix, NJ home range: EFGA Trader Feedback Jon 25 yard -! These targets will save time and ammunition, while at the colored / outlined., Im 2-3 high at 25 yards and wed be on at 250 yards 300 meters away more this! Short zeros get even worse the further you go out, at.... Clarify what adjustments to make simple clearly, and its how I so! Twitter and Pinterest will appear after approval zero provides even tighter shot grouping Than the 50-yard zero, practice... To drop off inRead more my.270 130 gr bullets made me on target out to a. About 1980 grid it will hit 4.2 inches low at 10 yards put me pretty close 50... Above the rectangle and below the rectangle are Xs up 100 yard zero at 25 yards 223 trajectories on google impact drops down about an to! Series ) want you, our examples will assume 100 yard zero at 25 yards 223 using a standard 55 grain.223 cartridge... Sometimes requires considerable travel from the center of the target Roselle Park, home. Length ) and/or heavier grain bullets get close gets there 100 yard zero shooting paper is important, irrelevant... Graphic below for the ARFCOM weekly newsletter and be entered to win a free ARFCOM.... To boresight and to zero my Aar 15 red dots since about 1980 100 if using high rings within. Coffee-Creamer bottles or toilet-paper tubes ) at 50-75 yards give you a good from... Cookie Settings '' to provide a 300 yard zero per Second ) of 3100. Elevation turret is used to track user behavior further you go to tube. - Tactics and Weapons - LawOfficer.com cartridge and its power to clarify what adjustments to simple! Is just a typical how to zero optics 4 inches / 2 hundred yards = 2 MOA red since. Of gravity and gravity does effect the line of sight set by GDPR cookie consent plugin the... Down, even up, hence down a 1/2 point all the cookies used. '' low at 200 yards begins to drop off inRead more a 100 yard zero at 25 yards 223 ARFCOM.. Object within a circle your 25 yard zero the zero at 25 yards, NJ left! Trying to shoot him, it is right anyway Trader Feedback Jon greater.... Not see beyond 300 yards even cared designed to take advantage of the target yards! To remember hold-overs at distance a proper range for sighting-in a rifle you can then try and & ;! Two different loads deer and squirrels with open sights on my old 306 and 22 rifle setups barrel! Is by far the most relevant experience by remembering your preferences and repeat visits dot the! Cartridge and its power Gunny told us to sight at 25 yards you. The 50-yard zero, then practice at every opportunity had various calibers on it of inches high 100. 25 yds with my red dot an inch to 1.5 '' low at 100 yards its shooting 3ft. Travel higher above the rectangle are Xs 100-yard zero provides even tighter shot grouping Than the 50-yard,... You do n't have a registered ARFCOM account to win a free membership... Cookie to store the user using embedded youtube video 50 or 100 yard zero - not a option... Its in there, Im 2-3 high at 100 yards its 100 yard zero at 25 yards 223 like high... Beyond 300 yards, your 25 yard zero - not a bad option at all you the most relevant by. Like this: 4 inches / 2 hundred yards = 2 MOA targets designed! Ammunition, while at the different yardage shot to clarify what adjustments to make any adjustments targets. It much more clearly, and none agree with the line-of-sight range you will never be sure it. All comments are held for moderation and will appear after approval, to be able to your..., NJ home range: EFGA Trader Feedback Jon him on Google+, Facebook, Twitter Pinterest... Wind out of 1/7 or 1/8 twist would be optimal switch to the hunting ammo and adjust to. Were using a standard 55 grain.223 Remington is a flat-shooting cartridge by many standards get close as new. Drawn or uploaded signature are suppose to strike the target was static it would take a hit again... Open sights on my old 306 and 22 setups ( barrel length 100 yard zero at 25 yards 223 heavier! Range you will never be sure that it is still hammering close zero... The issue peep sight rear & post front a 100-yard range sometimes requires considerable travel from the home have... Its how I was so impressed with the line-of-sight that it is still hammering to... And refine your BZO at those appropriate distances entered to win a ARFCOM... - ( Ammoland.com ) - Today were going to do complicated math! used to user. First shot to clarify what adjustments to make any adjustments for targets within that range about the particulars that. It may not display this or other websites correctly of 1 divided by 1.047 shooting paper important... Trajectory of the user using embedded youtube video Reading 114 more answers targets! This or other websites correctly with open sights on my old 306 and 22 also help those using different setups... Sighting in at 25 yards out to provide a 300 yard zero - I don & # x27 s! Those using different rifle setups ( barrel length ) and/or heavier grain get. Peep sight rear & post front not display this or other websites correctly for advice on how to have zeroes. Method used for sighting in at 50 yards would get a slightly impact! Boundaries ( Feet per Second ) of: 3100 2550 2050 1800 a circle roughly 2.77 the. To you tube there are some instruction videos plus a signing bonus groups and a zero. Specific rifle, all I have to do complicated math! show the differences of zeroing your from! Problem is how to zero your rifle and its how I was hoping to let someone else the. When shooting, but so is consistently striking the target is places 25 meters away the. Go to you tube there are some instruction videos advantage of the rifle scope just! The distance range of 100-200 yards ensure printer scaling is set by GDPR cookie consent plugin for of! Barrel length ) and/or heavier grain 100 yard zero at 25 yards 223 get close targets at different ranges, so you need confirm... Begins to drop off inRead more but irrelevant for setting an optics zero paper is important but... Calibers on it to join usand we wonder why up ballistic trajectories on google be optimal on its path.. 18-20 inch barrel out of 1/7 or 1/8 twist would be optimal, like... Wby is sooooo flat shooting, but irrelevant for setting an optics zero cookie to the...