I won a CZ 600 in 223 Rem caliber a while back. Long story short, I put a shitload of ammo, both factory, factory match, and handloads through it and could not get it to group. I wound up sending it back for CZ to check it out. They checked it out, but could not get it to group well either, so they just sent me a new rifle. Same model and caliber. Thank you CZ.
While I was waiting for it to return, I loaded up a bunch of ammo to test the new rifle when it got back to me. I now have ladders using Varget, Benchmark and CFE223 with Barnes 55 MPG's, Hornady 53 V-max BT's, and Hornady 55 grain SP's (cheap ones for prairie dogs. #2266). I'm also testing out some of my AR loads just to see how they do in the CZ. Too much ammo for one session. I'll break it up into at least two days. Going to try to get a load using the MPG's first so I'll have at least one Kali-legal round for dogs. Second session with be concentrating on the Hornady 53's. If I really want to go crazy later, I have some Rl-15 I can try, but I think one of the three I have loaded now will work out fine. First range day is scheduled for next Thursday. Reports to follow.
While I was waiting for it to return, I loaded up a bunch of ammo to test the new rifle when it got back to me. I now have ladders using Varget, Benchmark and CFE223 with Barnes 55 MPG's, Hornady 53 V-max BT's, and Hornady 55 grain SP's (cheap ones for prairie dogs. #2266). I'm also testing out some of my AR loads just to see how they do in the CZ. Too much ammo for one session. I'll break it up into at least two days. Going to try to get a load using the MPG's first so I'll have at least one Kali-legal round for dogs. Second session with be concentrating on the Hornady 53's. If I really want to go crazy later, I have some Rl-15 I can try, but I think one of the three I have loaded now will work out fine. First range day is scheduled for next Thursday. Reports to follow.