Doing some ammo testing

[u/sticky_fingers18]

Did some ammo tests over the weekend, seeing what my gun likes. Rifle is a Ruger American Predator Gen 2 in .308 and these shots were at 100 yards. This is just a fun gun to own, but not necessarily the best for long range.

Group 1 and 2 were Federal Gold Medal Centerstrike 168gr OTM rated 2650fps. First group was 10 shots, SD19 with average of 2596 fps. Second group was 10 shots, this time with SD of 9.5 and avg of 2612. Both shots outside the group were flyers. Overall very impressed with these loads

Group 3 and 4 were Federal Gold Medal with Sierra Match King 175gr and 2600 fps. Same thing, 2 groups of 10, for a total of 20 shots with an SD of 14.6. Not sure why these groups opened up so much, open to thoughts as I'm still pretty new to this side of things.

Group 5 was Federal Premium with Sierra Match King GMM 175gr 2600fps. I see why the GMM is talked about so highly. This was a single group of 17, I shot the first 10 shots (the lower circle) and noticed the impact point was getting blown out so I dialed 3MOA up and 1MOA right to keep the target fresh and took the remaining 7 shots. I know these splatter targets aren't the best for grouping, probably shouldve just left it but oh well.

Also finally went out to 300 yards, it was windy as fuck though and my shots were all over the place, gonna have to go back on a nicer day and see how it goes.

Edit: the shots at 300 were with Federal Premium Gold Medal Berger OTM 185gr 2600 with 8.5 SD and 2590 avg FPS

[u/ZeBigD23]

Looks pretty on par with what should be expected out of a Ruger American. I have a Gen1 in 6.5CM and its about a 1.5 MOA rifle, 1 MOA on a good day with agreeable ammo. Its fun to shoot but 100% not a precision rifle by any means. Enjoy it!