I just finished setting up a load for my Brno ZKK 600. Settled on 175 Speer Mag-Tips over IMR 7828. I'm getting 2425 fps and 2" groups at 200 meters. The Brno's got a really long throat, I had to seat the bullets at 3.160" C.O.A.L to get them 0.030 off the lands.
I have some Speer 175 gr. Deep Curls on hand as well. To get them out to the rifling, I'll have to seat them at 3.310" C.O.A.L.to get to the rifling. Good thing the Brno's got a long magazine box.
It's going to be my moose rifle this fall if I get a draw.
