TrueShot silver bearing alloy in a 30 Cal. 170g RNFP .310 hard cast bullet.
Brinell Hardness: 22 This is the accual hardness tested with a LBT tester.
Will ship in a plastic ammo box. 6 boxes will fit in a shipping box.
Can be ordered in .309 or .310 Put size in comments at check out.