CZ 527 Sporter 23.5” / A2460/ 90 TNT’s

[Harpoon1]

How did you screw up the brass prep and what did you do different to fix it?

It’s been so long since it happened I’m not positive but, I think I was doing a quick turn around and just used a Lee neck collet die to size the neck. However, I think I used brass from another Grendel, have all three, Ruger, CZ and Howa. So, no shoulder bump with Lee collet die and the brass was a little too snug chambering.