Mk262 primer. 56 77 Grain, a premium clone of the legendary MK262 round.
Mk262 primer MK262 powder. Crafted for ultimate accuracy and devastating stopping power, this ammunition is designed to meet the rigorous demands of both tactical professionals and precision shooters alike. 750". Mk262 Mod 1-C: This is a commercial version of the Mk262 Mod 1, and it also uses the SMK projectile. The old Ramshot data used CCI 450 and a CCI 41 would be the mil spec version. It was manufactured specifically for the civilian market, yet it still has all the hallmarks of precision military ammo with its high quality brass cases, non-corrosive Boxer primers, and clean-burning propellant which is insensitive to temperature fluctuations. 5s for hot AR loads. 24 TAC, LC brass, 77 nosler, 2. 75g This isn’t military surplus. Be careful to load lighter with the thin-skinned Scenars. The MK 262 MOD 0 was specifically Jul 30, 2022 · The round is charged with a proprietary ball powder. 56 77Gr (MK262 Clone) Product Overview: Velocity Ammunition’s 5. 7-24. You could also try CFE223/2000MR or one of the other superformance type powders. I clean every 100 rounds now (competition rifle) I bet if you give your WOA a good throat cleaning it’ll cure the problem. Contrary to erroneous information that has been posted on the Internet, MK262 Mod 1 does not have case-mouth sealant. Dec 13, 2018 · I blew a primer in my rifle around 24 gr of 8208XBR, and backed off. I Shot 2014ish Federal 55gr . If you want to clone mk262 and you’ve watched the JRB series, then you know very few powders can get you close to that performance without massive Aug 18, 2016 · My personal favorite is 77 grain Scenar over 24 grains of N140, Lapua cases and Tula small magnum rifle primers. Aug 20, 2022 · 7. Dec 6, 2016 · If you want to actually clone Mk262 you need to be pushing a 77 SMK at 2800 fps w/20" bbl which is very difficult to do with Varget, RL15, VV, CFE, 4895, 748 etc in a GI case without blowing out primers. Oh I wasn’t saying MK262 is a bad round or ineffective, what I was saying is the civilian market has plenty of round that can out perform it in expansion and effect on target since we aren’t bound by special requirements or laws regarding usage and type of bullets allowed. 56x45mm MK262 77 Gr – 20 Rd Box. 56 mm case, increased pressure loading, crimped and sealed the primer, and added a flash retardant to the powder. Eventually, after extensive development and even more extensive field testing, that idea became the only one of its kind fielded and used with great efect by the greatest military in the world. Since I was shooting on a 90 deg day, and Louisiana temps seldom get below 30 deg, and these are not magnum charges of powder, may not need the mag primers for reliable ignition. Feb 5, 2018 · Ive been trying my hand at reloading 5. com/ammo/special-forces-to-civilians-black-hills-mk-262-mod Black Hills 5. You can buy new primed Wolf brass with a crimp for less than half the price of M193. Mar 22, 2018 · I have a M12 mod 1 clone with 1/8 twist 18" barrel. 5. Mk262 Mod 0: This is a different version of Mk262 that uses a Nosler or Hornady projectile. 223 pressure, not 5. 24. My understanding is the military load develops a velocity of around 2,750 fps. 245 was the closest I got to the sort of speeds people talk about with mk262 and it meters very well + is usually easy to find and cheap. It is great for its intended purpose and in the military is the best currently readily available option to increase terminal performance with all 5. 56x45mm MK262 77 Gr rounds. (The squares of the red grid measure 1/10 of an Site updates coming Wednesday, 1/29 at 8am CT! The site will be down for routine maintenance on Wednesday, 1/29 starting at 8am CT. Aug 22, 2006 · Mk262 using the 77 gr SMK OTM is built as premium quality ammunition intended for precise long-range semi-auto rifle shots from the Mk12. I don’t use 7. My MK262 recipe is same lot LC brass trimmed to 1. Its a Bighorn Origin with a Hawk Hill 223 Wylde Chamber barrel and TT Special. brass CCI no 41 primers and a 77SMK which run 2720-2730 outta both of my HCS MK12 Mod 0 and Mod 1. The cannelured 77 gr load was designated Mk262 Mod 1, and the orginal Mk262 was re-designated Mk262 Mod 0. I took my new "build" out today for the first time to get it sighted in. Jan 6, 2011 · I know ball powders require mag primers particularly in cold weather but I have read where mag primers usually slightly open up the groups. The primer pockets are crimped and sealed. . These 460 cartridges come sealed in a mil-spec ammo can. Military round. The upgrade should be quick, so we only expect the site to be down for 1-2 hours maximum. CCI 450 primer, 23. 56 pressure. Apr 19, 2024 · Mk262 Mod 1: This is the original Mk262 load, and it uses a Sierra MatchKing (SMK) projectile. 56 mm carbines. 223 (Just to get on paper at 25yds) It is a true 556 loading, much higher pressure than standard 223. Step into the future of ammunition with Black Hills 5. 56 77 Grain, a premium clone of the legendary MK262 round. Mk262 Mod 1 is around 60k psi. This is definitely 5. Feb 23, 2023 · Mk262 have a crimped primer? Might be why they don't pop primers like your reloads. Use Milspec CCI primers, you will flatten/pierce non milspec primers. 7. Mar 5, 2016 · For the rifle to be accurate out to 600 yards, Black Hills "militarized" a cartridge that used the Sierra 77 grain OTM (Open Tip Match) projectile; it switched from a . Like the original, the new MK262 Mod1-C commercial round features the exact construction and performance specs of the U. According to one observer: "At this point bureaucracy, nepostism, and capitalism converged. Sierra realized they were about to lose a VERY LARGE contract and suddenly they agreed to make the 77 gr SMK with a cannelure. The original cupronickel-plated steel-jacketed bullet and Berdan primer was replaced by a tombac-jacketed bullet and lead-free Boxer primer. There are some swipes but not real extreme. 5 for me will crater much sooner than 450s or 41s. Mar 20, 2022 · The first MK262 ammunition used the same powder that Black Hills uses in the match ammunition, only loaded hotter, to meet the desired velocity. Since 1997 most components of the round are made in Switzerland. With the warning out of the way, the best powder I've used is CFE223 to get that velocity from an 18" barrel. The Sturmgewehr 90 rifled barrel has 6 right-hand grooves and a Swiss Army specification 254 mm (1:10 in) rifling twist rate. 5s are super accurate primers but the cups might be a bit soft for pushing pressure to mk262 levels. Initial SPR weapons and AA53 field reports very positive. The Best 5. It's known for its accuracy and long-range performance. In hidgdon load data, the max pressure listed for 223 is 55k psi. Sep 11, 2014 · Always look at primers when using TAC. 0gr TAC, everything else the same, is on the node for my 20" Krieger AR and this is . It is now available in military ammo cans containing 460 rounds in 20 round cartons. Nov 6, 2023 · My sub-1/2moa CLE chambered Bartlien shoots mk262 just fine until I’ve had 200-300 rounds through it and then it starts blowing primers too. Im using LC brass, CCI 41 primers and SMK 77 gr with the cannelure. The primers were crimped, or at least a crimp was attempted, the ring style crimp was used, you have to look close to see some of the ring. Apr 30, 2020 · The closest I have gotten to dupping the MK262 without a lot of effort Is a Max Sierra book load for Viht 1-40 once fired Win. 8gr TAC, LC brass, NATO primer, 77SMK/CC are my Mk262 clone too. Pretty much everyone has posted common match loads in the 2500-2600 range. Chamfered neck ID & OD. shootingtimes. 223 Remington to 5. 223 rifles will tolerate it. Work began for incorporation of Mil-SPEC primer and cartridge case, packaging and specification. Jul 3, 2017 · Take a close look at the picture of the cases with primers, there is evidence of gas leaking past the primer, a sign of over sized pockets. (16" barrel) a 5 shot string with Mk262 gave Feb 21, 2016 · Yep, 24. 56 Load: The Black Hills MK 262 Mod 1 - Shooting Times 9/12/14 8:27 PM http://www. This is the round provided by Black Hills for the US Military. 56 rounds in an attempt to duplicate the Black Hills MK262 Mod 1 ammunition that supplied to the US Military for use in the 18" SBR. Dec 28, 2023 · I thought I had seen a related thread recently, but I cannot find it now. With regard to pulling M193/M855 for the crimped primer brass - the necks are caked with tar and it's a huge pain in the ass. 56 pressure so not all . S. Regarded as precise, consistent, and having ballistic superiority, this round is designed for the shooter who refuses to compromise on quality. The 77 grain MK262 Mod 1 projectile compared to the M193 projectile. Since MK262 was designed to work in one specific firearm and that firearm was designed to work with MK262 ammunition, the powder and charge wasn't a problem. dsswlcarxlphqbadbsxzckuryjwixmlqlbdfnwudyeyjctxvf