The ACU’RZR is an interesting tool. You put a .22 Long Rifle cartridge into the ACU’RZR and give the “forming rod” a whack with a hammer and then take out your .22 cartridge with a newly shaped bullet.
The idea behind the tool is threefold. It ensures consistency in bullet shape which will increase accuracy, allows you to select a bullet shape and allows you to choose a bullet diameter that suits your handgun or rifle.
I must admit I would be too scared to hit a a rimfire cartridge with a hammer. I would rather purchase match ammo.
Different models are available and range from $38 – $53 (+ $5 shipping).