Buffalo Bore is world-famous for producing high-grade centerfire rifle ammo for big-game hunting. Buffalo Bore .45-70 Government 350 Grain Centerfire Rifle Ammo loads lead-free rifle ammunition with Barnes all-copper bullets for shooting where lead projectiles are prohibited. Loads are available for standard hunting cartridges, as well as non-standard cartridges that you can’t find anywhere else. All ammunition is field-tested in over-the-counter firearms, just like you usenot test barrels.