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The lower density M22 bullets were of the same shape as conventional M2 bullets for reliable function through self-loading machine guns, but weighed only 110 grains (7.1 g) in comparison to 152 grains (9.8 g) for the M2 bullets. [12]
The EPR contains an environmentally-friendly projectile that eliminates lead from the manufacturing process in direct support of Army commitment to environmental stewardship. [21] Under the Green Ammo Phase II initiative, the Army focused on lead-free ammo in stateside training ranges, in response to tightening state environmental regulations. [18]
For penetrating substances significantly harder than jacketed lead, the lead core is supplemented with or replaced with a harder material, such as hardened steel. Military armor-piercing small arms ammunition is made from a copper-jacketed steel core; the steel resists deformation better than the usual soft lead core leading to greater penetration.
The SS195LF is a commercially available cartridge that features a lead-free primer and produces ballistics similar to the SS192 round, which it replaced in late 2004. [59] It uses the same 1.8-g (28 grain) copper-jacketed aluminum core bullet as the SS192, and it can be identified by the unmarked, hollow void at the tip and the silver-colored ...
The new 62-grain (4 g) projectile used in the M855A1 round has a copper core with a 19-grain (1.2 g) steel "stacked-cone" penetrating tip. The M855A1 cartridge is sometimes referred to as "green ammo" because it fires a lead free projectile.
Flat nose lead (FNL): Similar to round nose lead, with a flattened nose. Common in cowboy action shooting and plinking ammunition loads. Total metal jacket (TMJ): Featured in some Speer cartridges, the TMJ bullet has a lead core completely and seamlessly enclosed in brass, copper or other jacket metal, including the base.
The intent of the buck and ball load was to combine the devastating impact of a .50 to .75 caliber ball with the spreading pattern of a shotgun. [citation needed] The combination served to greatly improve the hit probability of the smoothbore musket.
It has been used with success for self-defense, plinking, hunting, or target shooting. [12] [better source needed] The original .357 Magnum load was a 158 gr (10.2 g) bullet with an advertised muzzle velocity of 1,525 ft/s (465 m/s) and muzzle energy of 816 ft⋅lbf (1,106 J).