Home Forums Hunting & Shooting AR and Tactical Rifles Big bore AR 15

I use the CMMG & Tromix Lancer mags, these were all shot with the same zero.

Aero Precision XL upper, Aero M4E1 Lower, Spike's Enhanced LPK, Tromix 16.25" Lightweight Stainless barrel with NIB bolt, WMD Nickel Boron BC, Tromix gas block and tube, BCM VLTOR Gunfighter Mod 3charge handle, Tromix 4 Port Brake, Aero Buffer Tube Kit, Magpul MOE Grip, Magpul CTR stock and Diamondhead VRS T-556 15" handguard, Warne Skeletonized Cantilever 30mm scope mount and Burris Four-X 1.5-6x42mm. 9lbs 5oz with a 4rd Tromix Lancer Mag loaded with 4rds of Black Butterfly 300gr JHP. The scope alone is 20oz of the weight.

These are Black Butterfly's published velocities:
300gr Hornady JHP is 1800fps
325gr Hornady Flex Tip is 1600fps
300gr Barnes TSX HV is 1950fps
300gr Barnes TTSX is 1850fps
300gr Nosler BT Spitzer is 1800fps