30's
Remembered I have a box of Berger 30 gr MEFs in the shop. My 17AH is VERY accurate with these and the 'Gold' 30s I tried.
HOWEVER, last nite we turned the PacNor 3 groove stainless Match 9"twist barrel to final diameter for my CZ action. It was very nice as a .221FireBall, but I wanted to build a Mach IV.
Sooooo,,,I'm thinking of trying these 30 MEFs in the 17 Mach IV for yotes,,,,what think?
Should have the Mach IV finished very soon.
And no,,,I didn't want to wait on a 17 Rem Fireball reamer. The Mach IV reamer has been tested and proven to cut great chambers. Guess I'll still have a "wildcat" with my 17 Mach IV. And I'll probably always use 221 cases so no one puts one marked '17 Rem Fireball' that has been in my rifle,,in their 17 factory chamber.