57651

Originally published at Notes from the bunker…. You can comment here or there.

I hadnt planned on taking the CZ out for a spin yesterday, but one of the LMI and I went shooting and he brought along his .308 to try some loads and I figured I'd bring mine along.

Only shot 20 rounds. Heres how it broke down:

Case: Lapua .308
Bullet: Lapua D6 170 gr.
Primer: CCI BR
Rounds were too long for the magazine and were chambered singly.

Group # Charge 5-shots Remove flyer
1 44.5 gr. Varget No data No data
2 44.5 gr. Varget 1.375″ 1.000″
3 45.0 gr. Varget 1.250″ 1.250″
4 45.5 gr. Varget .600″ 0.500″

Group 1 was hitting the very edge of the paper so groups couldnt be measured since some bullets had struck the backer board rather than the paper. However, if I were to guess, Id say it was about 1.5″ or so. Nothing remarkable.

It should be noted all groups, inc. the best group of .600″ , were shot by my LMI buddy and not me. I wanted to let someone else shoot it to see if it made a difference. I think the results pretty much parralel my own shooting experiences with this gun.

Im not done with the IMR powders though. I think a switch to a more premium bullet (Hornady SST or Sierre MK) along with some more tightly manufactured brass (Lapua or Horn. Match) might make a difference. And, of course, someday I'll get the bloody scope I want. (In a sidenote, the GunPimp told me someone came into his shop and pawned the exact scope I want…so if he defaults on it, the GunPimp said he'd make me a deal on it. Love the Pimp.)

Once I find a load I like I'll have to chronograph it and start doing the ballistics to make a range card and cheat sheet for holdovers and such at various ranges. Goal = 1 MOA out to 600 yards.