17 Fireball and 221 Fireball now available! Order while you can!
This brass is formed from all once fired Nickel cases
Deprimed swaged formed and trimmed to +/- .003 of 1.390
Depending on your chamber dimensions these may require neck turning
I load and shoot a CZ 527 in 221 fireball & have tested this brass myself with the necks turned to .012 to 3400fps pushing a 40 nosler without failure.