![]() For more information, go to LAR-15, LAR-8, LAR-6.8, LAR-458, LAR-9, LAR-40, LAR-47, LAR-300, LAR-15LH LEF-T, WYL-EHIDE, PRK-EHIDE, NSP, IRS, X-Series, and ROCK RIVER ARMS are registered trademarks of Rock River Arms, Inc. sale, sil but the very best maling Oats are only saleable ia retail Flour. To cause cancer, birth defects or other reproductive harm. Let me know if you all have any questions.WARNING: The products offered for sale on this website can expose you to chemicals which are known to the State of California Based on a 10mm Magnum Case (Not 10mm Auto) necked down to accept 338 caliber bullets, this is a potent and versatile cartridge for any AR or Bolt gun. That seems to have taken care of the problem. I polished the lugs and the bearing surface on the bolt because it had a very rough finish. The gun would go "click", and there was no dent in the primer. I gambled on a BCA left side charging for a 338 Spectre build and was pleasantly surprised how good it is. I also had a problem with the bolt not fully rotating into position when the bolt carrier was fully closed. The added spring pressure of the new kit also made it harder to get the extractor over the case rim, so I had to polish the extractor nose. Shop Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Assembly - Complete Up to 6.00 Off Be The First To Review Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Assembly - Complete Coupon Available + Free Shipping over 49. The extractor spring was not strong enough to pull the round from the chamber, so I had to add the extractor spring upgrade kit. I've had some issues with the 6.8spc bolt I got from DPMS. This cartridge is intended to fill the gap between traditional pistol caliber. The 338 Spectre cartridge is a proprietary round developed specifically for the M4/AR-15 family of gas operated, detachable-box magazine-fed firearms. The fast twist of the 8.6 is better suited for sub's than super's. The BLK probably has more and better bullet designs for subsonic, but the 338's might see more options with the 8.6 driving things now. Out of Stock.338 SPECTRE 250 GR FMJ 20 RDS. You would definitely see an improvement in energy with 60 - 80 grains more bullet at the same velocity. The load data I have for that, shows the 200gr bullet going 1550 fps with 18gr of 4227. 338 SPECTRE, 180 GR, NOSLER ACCUBOND-TIPPED, 20 RDS. I have recently picked up some 200gr Hornady V-Max bullets for working up a super-sonic hunting load, but have not gotten to loading any yet. ![]() With 12 grains of IMR4227 in the 16" barrel and the suppressor attached, I get 1075 fps with the gas system shut off (scary quiet!), and 1025 fps with the gas system in the "suppressed" position with the action cycling. I thought about 338 Spectre, but didn’t like the non standard bolt face. 338 Federal, but didn’t like the large case capacity. 338 didn’t exist or at least from any sort of mainstream source. The Lapua bullet was a little more accurate, and was averaging just over 1 MOA at 100 yards. At the time, commercially available subsonic. AR Upper Receiver & Components AR Accessories AR Picatinny Rails Benelli. I'm currently using a 2.26" OAL for both rounds. Sale Items Actions - Receivers SALE: Chamber Reamers nopix Pull Through. The Lapua bullet will seat further towards the rifling if they are loaded with the same OAL. The only dedicated items required that are not standard. Any of the lowers out there that meet mil-spec should readily accept the. I'm using 12 grains of IMR 4227 behind either the 300gr Sierra Matchking or the 300gr Lapua bullets. 338 Spectre was designed to work with as many mil-spec components as possible and requires no special parts other than the barrel.
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