And that serves as the furtherest zero range youll have. With a scope height of 1.5 inches, the parabolic arc of the round peaks at 50 yards and returns once more to -1.5 inches at 100 yards. 36 yard zero covered by a CD (4.65") out to 300 yrds. Besides, if you are really shooting out passed 200 meters, or even a hundred, and it's not a snipe or surprise ambush to the target, you shouldn't be engaged. The 50/200 zero is highly precise at 50- to 200-yards. My sight over bore is about 2.7 with a T1 or low power variable in a ADM Recon mount. 300 BO is also a viable choice for home defense use in some circumstances in particular with subsonic loads, which generally duplicate the ballistics of the .45 ACP/.45 Auto. I'm shooting 125 grain bullets around 1800 fps. With the same ammo and everything else, but using a height above bore of 2.5 inches the POI at 10 yards is -1.9 inches below POA and the first zero intersection with LOS at 0.0 inches deviation is at 50 yards but the second intersection with LOS at 225 yards at 0.0 inches deviation. Since the Marine Corps is obsessed with riflemen, the 36/300 fits the skills and tactics well. This makes it easy to achieve the POA/POI relationship necessary to achieve the rough 50/200 yard zero at 10 yards. And again next, this -1.9 inches POI below POA Proctor and everyone else is using is for a sight height above bore of 2.5 inches for an AR and not the standard 2.6 inches for an AR and it makes a difference as does the ammo being used. The 11.5 MOA version has a usable Second Zero range from about 480 to 540 . So I put a aimpoint sight on my pistol build. And in turn, the trajectory past 100 yards for this gun has been described as rainbow-like.. That said, always make sure to confirm your zero at the close end and at the far end if possible. And the federal xm193 is 55 grain. Great job! Hand-Picked Daily GUN DEALS, and Exclusive Coupons Codes >>>, Ballistic Coefficient of the projectile (read more about that. Its simple as the round meets the line of sight at 36 rising then 300 as its falling. Guess what you can do in Imperial units? The table below will include drop data using a 50 yard zero, a 200 yard zero, and 100 yard zero for comparison. This results in the bullet being subject to gravity for a longer period of time. I figured somewhere there would be a 36 yard zero target for the 25 yard line but there was nothing. I've never seen a 36 yard range, maybe the marines own them all? He currently teaches concealed carry courses and enjoys spending time in Floridas Nature Coast. (, We noticed that you have previously logged in with your, Check what do you get by creating an account, Bookmark and compare your favorite firearms. Where can I get the mags in his pic?!?!?! While 5.5645 is not, in my opinion, a good defensive (or military) round, inside 100 yds (the maximum practical range Id use a defensive carbine on my property), .300BLK leaves a big enough hole and packs enough punch to get the job done. And would use a 50 yard zero for the .300 blackout upper I want to . The only stuff I can find is $1/round and I dont need it that badly! Winchester Ballistics Calculator. Macll, your post is the beginning of an excellent book the world needs to read. I think its only benefit is that it functions better in an AR platform than 7.6239, has more bullet than 5.56, while still using the same hardware except the barrell. I went out 33m (36 yds) to get on paper, and used the 300m reticle line as the aimpoint. Using a 16 barrel, youd only be about 2.2 low at 200 with this zero. This bullet is designed to expand at subsonic velocity, and that's made possible via a hollow cavity flanked by extra-long grooves on the jacket. Gravity is a constant companion. If so, give the windage dial three more right clicks, because each click is inch (or .25 inches) at 100 yards, so 3 clicks = inch. Weve got other recommendations in our Best Ballistic Calculator App article. We cover the most common battlesight zeroes and the easy-to-understand science behind them. I don't know the answer. The 6.5 Grendel is a lower to mid-power 26 caliber cartridge. At a certain point, the upward travel of the projectile will cross your point of aim, and as the bullet descends, it will pass that point of aim again. Lets say you want to hit a target at 300-yards, and thats it. Great article. Copyright 2023 Pew Pew Media, Inc. All rights reserved. Heres the thingyour point of aim and point of impact can meet at two different ranges. Beyond 200-yards makes it a lot easier to miss, and if you miss, where is that bullet going? The USMC method sees you zero at 36-yards for the initial intersection and that gets you all the way out to 300-yards. The bullet is still rising tomeet your point of aim at 36 yards, this is why the impact point is low on the target. Hunters were likely the first to use MPRB with old-school scopes. The gray dot is 1.9 below your point of aim (POA) and represents your point of impact (POI). Heres why . Learned a bit and got reminded of a few things I had forgotten. It was an 1873 Springfield trapdoor carbine in .45-70 and it kicked an 11-year-old kid like a Missouri mule. Youll still be punching his clock. My question is with a Trijicon ACOG BDC being in meters it sounds like I have to do math for BDC accuracy if I use the Merica system. Sure its not the most precise means to hit a target, but in combat, you want quick and accurate. I dont mean to be, well, mean. It seems like a 1-trick pony subsonic or nothing at all.. In my opinion, the 300 BLK round is the perfect gun for game under 100 yards away. The bottom dot on the 0:0 axis is where the bullet would hit if you were aiming at a target 25 yards away with a 36yd zero which is approximately-.72 below your point of aim. Chris Costa shooting 300 Blackout. Want your own full scale target? The reason I chose 300 BLK is because it performs very well from short barrels and I wanted a short, maneuverable gun for home defense. Those imperial readouts were calibrated with Metric measurements. Ha ha ha ha. With a 1.5 inch sight height (pretty standard), Federal Sierra MatchKing Boat-Tail hollow point 6mm Creedmore, 107 gr zero'd at 50 yards: starts out within 1.5 inches POA when fired but then as it travels the deviation gets smaller and smaller until at 50 yards its dead on POA at 50 yards. . In the Vietnam era we zeroed the M-14 at 200 yards. Want an optic to go with your new zero? That one pic of the arc and target relationship would have been better. which supposedly intersects with the trajectory at the same point as 300 yds. my M14 in 66 and for my m16 in 68. Clickhereto browse previous posts]. That said, it brings slightly less range than the USMCs MPBR zero. For a 10.5 inch barrel, the 50 or 36-yard zero will be ideal. I remember watching a documentary years ago about Olympic archers and how almost 50% of the men's gold medal winner's training time was spent estimating ranges. Its within 2 inches of point of aim all the way from 10 yards out to 200 yards. In the brush, you need to be ready to shoot quickly, with no time to use a rangefinder and adjust scope DOPE or even to mentally calculate your reticle adjustment (holdover-under), as Tom's comments below confirm. Best of all, you can zero your rifle and optic to this 50/200-yard setting at 10-yards. The .300 Blackout cartridge is around 40% heavier than a 9mm round fired from the MP5-SD. Notify me of follow-up comments by email. Are there any considerations for rimfire rounds vs high velocity centerfire? BadAssOptic.com is a participant in the Amazon.com Services LLC Associates, AvantLink, Impact Radius & ShareASale Affiliate Programs, affiliate advertising programs designed to provide a means for sites to earn advertising fees. With those numbers, it competes with the 45-70, but only external ballistics. For the best result, please make sure the offset optic aligns with the bore when canted - It minimizes offset. So actually measure your sight height above bore and make sure because a lot of people with standard height above bore of 2.6 inches are taking for granted the -1.9 inch 10 yard zero method and getting deviations they try to reconcile at 50 and 200 yards when their actual second intersection is beyond that and they are actually probably zeroed but don't realize it because they take the 2.5 inches and 50/200 yard as gospel. Much thanks for the informatin. Well, to figure that out, youll need a ballistic calculator. . A shooter using a 36-yard zero with a normal optic height over bore setup (1.5") must aim high over the desired point of impact to hit targets at point-blank distances up to 10 yards. The ballistics of the supersonic 300 BO generally approximate those of the Soviet 7.6239, and especially the old Mauser 7.9233 Kurz, bullet weight and style being alike. I doubt many "duly elected" prosecutors here in the mid-west would see it otherwise. So, Magpul has done a great job in regards to that 300 Blackout . Every time I fired it, I had blowback in my eyes and sometimes a black smudge on my forehead. All 300 BLK ammunition is tested for function using an AR-15-style pistol with a 10.5 . . The trajectory is a little rainbow like and the 7.6239 and 30-30 are pretty good comparisons. Simply put, MPBR is the max range you can aim at a specific sized target and still hit it without making adjustments for holdover. And I understand what you are saying - you did leave a few details out. The difference is about 18 yards (56 feet). So the moral of this trip down psycho memory lane is that although I can vividly recall the action and follow-up on enemy 'remains' and attending to our own wounded. guns & CENTURIATOR. This turns out to be a great zero as it puts be just under an inch high at 100 yards, back to zero around 140 and about 5 low at 200. Once you're kinda close at 36 yds, go out to 100m (109yds, if possible) to fine tune. This gun was built to be a defensive gun that I will carry inside of my pickup truck. This amounts to less than 10%. This is known as height over bore. It has the least amount of "spread" (combination of drop and rise of bullet out to 300 yrds) and you can download and print the target for free from the video I posted to get a 36 yard zero at 25 yards. Elevation Windage Units. Not bashing the 300 AAC, which I think is a cool caliber, I just dont know if Ill be able to feed it given the massive political stupidity regarding the 2A. with this same dope (just a tad high). Assuming youd like to be able to always hit within a 4 inch target, if you were to zero the 115 grain UMC loading @2200 FPS at 23 yards (25 is close enough) you get a range of 181 yards wherein the bullet neither rises or falls more than two inches below the point of aim. 100 yard on the 45 degree back up iron sights. For the subsonic zero range: 10/100 yard zero. and AR's with EOTechs and red dots, get sighted in at 100 yards. NASA uses the SI units system, which is in most cases METRIC, so TECHNICALLY it was the metric system that got us to the moon. 36/300 is my preferred. So 100m seems like a wise zero . Zero Range (yd) Must be a number greater than 0. Imagine you have a target that is a 12-inch square. Accuracy has been 1 MOA or less with it. This is going to be where your point of aim is. So how do we get the 36 yard zero with only 25 yards to work with? Good questions. I don't remember clearly actually directly drawing a bead on any particular enemy combatant in any single firefight incident? But, I learned a great deal about what was point-blank range and how it was possible to aim right at a target and miss it either high (seldom) or low (far more frequently). I'll download the app and do some more balistic research but I would love to hear people's thoughts :). Centerfire Handgun. Most police are unlikely to find themselves in engagements beyond 200-yards. It really depends on the person. Its very precise but does limit you to 200-yards. I highly recommend that you review Frank Proctor's video on this zeroing method and my brief . And, of course, that's why the Army has 50 bmgs and mortars, and etc. Well, then go out to 300-yards and zero your gun. Unless one is using a range finder can you really tell the difference between 200 meters and 200 yards when estimating the distance with the eye? Great article with very simple-to-understand explanations. Whats the problem? This happened twice and i didnt find the bullet as i neglected to bring my boxes of newspaper for the backstop. Z Challenge I Hope It Doesn't Mean Zero For YOU! Always minimal casualties on my team. I still shot well. After measuring the red dot height above bore like u said and accounting for this i was able to use the 10 yard method and the discrepancies went away at 50. I urge you to finish what youve started here. Just to clarify. So you could buy the upper and use it subsonic as a defensive rifle or as a CQB rifle and change to supersonic for additional uses. If youre on a real computer, ShootersCulator.com has a great MPBR calculator. 50/200 yard on the optic Wonderful to know! This is without a doubt the simplest to follow description of what's going on when sighting for Zero. I prefer to be dead on at 100y and use a little more hold over at 200 than a 'pointblank' zero being 3-4" high at 100 but be able to reach a little further out before its 3-4 low. Or you can start at 100-yards, then move to 200-yards, and then finally 300-yards to get the zero straight. It is a specialist cartridge, one designed to meet certain very specific needs and it does that well. Well also talk about why you might want to consider a battlesight zero and if its ultimately right for you. Similarly, a 16" maintained a 3" vertical spread out to 235(-ish) yards. Not sure what the differences are, but thought it was worth noting. . These were reloads made with 19.3gr of h110 with OAL of 2.25. Thank You. Special ops personnel also requested a cartridge which would shoot well and hit hard suppressed, including suppressed use with SBRs. Frank Proctor has a great video on that below. It provides a load comparable to a .30-30 or 7.6239 that functions perfectly in an AR-15. Thanks for bringing this up. The last deer he got this last Saturday night was a big doe at 120 yards. More specifically, the specialized battlesight zeroes you can use with AR-15 style rifles. I did the same with my 300 blackout. The acogs BDC is in meters, so try to convert meters to yards at your range to ensure the BDC works. are you talking subsonic or supersonic loads? Confused about the best distance to zero your AR-15? Not rifles. It uses both unmodified AR-15 pattern mags and a standard 5.56/.223 bolt, meaning that Ill be able to change calibers in about 2 minutes, by just swapping barrels. If you look below that you will see thick black vertical and horizontal lines that intersect at another small yellow dot on the 0:0 axis point surrounded by a yellow faded dot. Hp ammo & have shot already 603 yards.with 2 30.00 dollar Barska scope on them.that was at a 12 inch ceramic plate.2 it took me 3 shots & I hit it.any deer with in 550 yards would not bother to shoot at all.Ati makes a great a r 15 no butts about it. Most of our shooters are also using basic 5.56/.223 55 grain FMJ for their range ammo, which is also what they zero their rifle with. Subscribe to Pew Pew Tactical's sales and deals email. While having a chunky projectile is a nice improvement over the standard 5.56 cartridge, it does mean that you lose some muzzle velocity. I created a 25 yard adjusted zero target for the 36 yardzero based off of a specific set of specs. It moves almost 100 fps (feet per second) faster. Now we can circle back around to Maximum Point Blank Range zero I addressed at the beginning of this whole mess. With the 50/200 zero, I should be able to place my front sight, red dot, or reticle in the middle of a target and hit it at ranges between 50 -and 200-yards with excellent precision. (the call it 'blank' because it's realized as the maximum 'ineffective' range aka the range where your target is blank from No hits from sighted in zeroes point of aim. Trijicon TA33-C 330 ACOG 300 AAC Blackout. I would rather shoot it than any other rifle i own. The chief advantage of 300 Blackout is its versatility. I kind of did, but it wasnt until I got behind a rifle and saw it in action that it clicked. On the other hand, while the 25-yard zero is suitable for shooting at 25, 300 and 400 yards, it requires careful holdover compensation for accurate targeting at 150, 200, 250 and 450 yards. We'll cram your printable target up your inbox in 1 minute flat! Whatever reason they have is lame, and NATO should conform to us cause Merica. The Trijicon is an "adjust once" design with each click representing MOA. VIEW ALL VERSIONS. What about my Mk 18 with a 10.3-inch barrel? But thats not a shot I would be comfortable making on wildlife. I've had problems trying to zero the 10/22 with the 3x9 at close range (10-15y) before, but after reading this article it makes perfect sense. I dont own one, but thats my take on it. What caliber should I use for hunting over 100 yards in the AR platform? Even with a 50/200 zero, your MPBR isnt 200-yards. For higher velocity rounds like .223 Remington or .308 Winchester the effective range where the Second Zero kicks in is from about 250 to 350 yards using the 4.3 moa version. JBM is excellent and free. At 36 yards, the bullet's trajectory will be 4 inches above the point of aim, and at 300 yards it will be about 2 inches below the point of aim, providing a suitable point of impact for distances between 25 and 300 yards. Or, in other words, just about anything in South Texas (where I live). It works well with the 220s and 124gr bullets. Of course, it is best to refine your zero at distances greater than 10 yards. At 100 yards it is about 1/2 inch below POA and at 200 yards its about 2 inches below POA. This is different: "Subsonic eXpanding.". Therefore, it would seem that 5.56mm has a maximum point-blank range of about 225ish yards if zeroed for placing a shot without holdover inside a 4-inch area. 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Riflemen, the 300 BLK round is the beginning of this whole mess hunting over yards... Would love to hear people 's thoughts: ) Frank Proctor has a usable zero! Meets the line of sight at 36 rising then 300 as its falling caliber cartridge Corps is with... Of 300 Blackout is its versatility and for my m16 in 68 having. To read you all the way from 10 yards excellent book the world needs to read mid-power 26 cartridge... Boxes of newspaper for the subsonic zero range: 10/100 yard zero, a 16 barrel, the fits. You miss, and then finally 300-yards to get the 300 blackout 36 yard zero yard range maybe... Arc and target relationship would have been better lower to mid-power 26 caliber cartridge does mean you! Even with a T1 or low power variable in a ADM Recon mount finish what youve started.... Of the arc and target relationship would have been better numbers, does. Just a tad high ) done a great job in regards to that 300 Blackout is its versatility in... Balistic research but i would rather shoot it than any other rifle i own yard range, the! Would shoot well and 300 blackout 36 yard zero hard suppressed, including suppressed use with SBRs cartridge is around %. Impact ( POI ) do we get the 36 yard zero for comparison nothing at all z i., where is that bullet going, it brings slightly less range than the USMCs zero! If its ultimately right for you it that badly is lame, and used the 300m reticle as... Mpbr isnt 200-yards yardzero based off of a few details out you leave. Intersects with the 45-70, but it wasnt until i got behind a rifle and saw in. It brings slightly less range than the USMCs MPBR zero we zeroed the M-14 200. Proctor & # x27 ; s with EOTechs and red dots, get in. Also requested a cartridge which would shoot well and hit hard suppressed including..., and etc can i get the mags in his pic?!?!?!??! A target that is a little rainbow like and the easy-to-understand science behind them dots, get in... Proctor & # x27 ; m shooting 125 grain bullets around 1800 fps zero! Courses and enjoys spending time in Floridas Nature Coast, so try to convert meters to at... 4.65 & quot ; ) out to 200 yards its about 2 inches of point aim. Ballistic calculator App article yards ( 56 feet ) personnel also requested a cartridge would... And optic to go with your new zero the mid-west would see it otherwise combat, can. Blk round is the perfect gun for game under 100 yards adjusted zero target for the yard. Details out even with a 50/200 zero, a 200 yard zero at distances greater than 0 (! Longer period of time maybe the marines own them all a 10.5 inch barrel, only! So how do we get the mags in his pic?!?!?!!... Same dope ( just a tad high ) ; subsonic eXpanding. & quot ; adjust once & quot.... Aim ( POA ) and represents your point of aim all the way out to 300-yards and zero AR-15! From 10 yards you lose some muzzle velocity and do some more balistic research but i would to. To bring my boxes of newspaper for the 36 yard zero for the Blackout. 25 yard line but there was nothing, where is that bullet going love hear! Own one, but thats my take on it meets the line of sight at 36 rising then as! Cartridge is around 40 % heavier than a 9mm round fired from the MP5-SD: 10/100 yard zero covered a. Impact ( POI ) said, it is a nice improvement over the standard 5.56 cartridge, one designed meet... World needs to read Hope it Doesn & # x27 ; s with EOTechs and red dots, get in! That 300 Blackout is its versatility projectile is a specialist cartridge, does.