Oh, and the magazines? $44.30. Additionally, The chamber pressure limits are calculated based upon the bolt thrust force vs the diameter of Literally 1/2 MOA at 50 same at 75. then 100.I am stumped. Ever wonder just how big a bullet we can hurl out of the standard AR-15 package? Thanks for the speedy reply. The videos on this channel focus on the first two itemsusing guns and making the ammo that gets used in them. I LOVE the 458 Socom round, it is the most fun round I own to shoot. We want you and your families to be armed and safe and we wish you the best during these trying times. The .458 can be had or loaded with bullets ranging from 140 grains up to 600 grains. However, case capacity can become an issue with bulky rifle powders.If I can find some loads with 2400, that might be a good experiment. It uses large pistol primers and slow-burning pistol powders or fast-burning rifle powders. The .458 SOCOM feeds flawlessly from many standard unmodified 5.56 AR magazines. Field Proven rifle and gun ammo. bullets at subsonic velocities, and the Barnes .458 x 1.5" briefly saw service in Vietnam in the Special Operations community. If youd like to change an order, we can no longer do that till things slow down, so simply place another order for more product, but PLEASE, NO MORE CHANGES after the fact! .458-405 GRAIN HOLLOW POINT- This bulletslead mushroom measures .550, and the jacket measures .600. HOW WILL THIS (name any) AMMO FEED AND FUNCTION IN MY GUN? The 1-22 twist rate is an absolute tack driver with 250gr 325gr bullets commonly used for hunting and is the optimum choice for the Barnes 300gr TAC TX/TTSX SOCOM bullet. Up in the midrange bullets300-, 350- and 400-grainersyou can jar your fillings with velocities in the 1,500- to 1,700-fps range. Hodgdons Powder Guide on line and other internet sources. NO, large rifle primers are taller than large pistol primer. The SOCOM is also capable of launching 500- 600 grain bullets at subsonic velocities for suppressed or tactical use. The Lancer 20 round 5.56 magazine holds seven SOCOM rounds and the 30 round 5.56 magazine will hold nine. Post Due to Department of Transportation regulations, we cannot accept returns on Ammunition. you consent to receive marketing text messages But magazines can vary. by Wicked Wed Apr 27, 2011 8:37 am, Post If that latter number looks familiar, it is. The impetus was an informal ("beer and barbeque") discussion with a senior member of the US Do not contact us and ask to change an order youve already placed. Having the ability to easily adjust your gas volume allows the end user to fine tune their carbine's bolt velocity for a specific loads power. They may not work the action of the upper rifle, but youcan work up in .2 grain increments to find what is best. The noise, not so much. Your ammo will arrive at the same time if you track it or not and will certainly arrive later if we are swamped answering questions instead of getting orders shipped. After testing a variety of base, Please sit tight. 500 Grain .458 SOCOM Subsonic Expanding Bullets (Box Qty - 20) The base of the bullet is a rebated boattail design. The .458 Subsonic Controlled Fracturing was designed for outstanding terminal subsonic performance for suppressed bolt gun or single shot applications. SBR 458 SOCOM Subsonic Ammo 550 Gr FMJ TCJ - Ammo Deals - Target Sports USA SBR Ammo 458 SOCOM Subsonic 450 Grain Full Metal Jacket Box of 20 Go ahead, nickname your .458 SOCOM AR-15 Thumper. Thats what it doeson both ends.