So I thought id post back some results on all that ammo I tested. I listed it from most accurate to least. I was also shooting it from a brand new rifle so once the rifle is broken in I might try them all again incase that makes a difference.
I was shooting at 50 yards, if the groupings don't seem good its probably my shooting but I used the same setup and went through each type multiple times to make sure I wasn't improving my shot and skewing the results.
Also im not 100% on the terminology so if im incorrect feel free to fix it. FTF=Fail to feed, FTE=fail to eject?
-CCI "AR Tactical" 40gr copper-plated round nose - 250 rounds- No FTF, FTE or bad primers, was able to consistently get 1" or smaller groups. I found this to be by far the best and will probably buy more even though its a little higher priced.
-Federal 525 Value Pack 36gr - 500 rounds - No FTF, FTE or bad primers, was able to get 1.5"-3" groups. It was consistent but not as good as the CCI AR Tactical.
-AE High Velocity 40gr - 100 rounds - No FTF, FTE or bad primers, was able to get 1.5"-3" groups. It seemed the same for accuracy as the Federal but hit a little lower, im thinking because of the difference between the 36gr and 40gr?
-Remington 22 Golden bullet HP - 100 rounds - No FTF, FTE but I did have a few bad primers, about 2-3% and I tried them twice. Wasn't great, 3"-3.5" groups with the odd random one that was way off
-Winchester Super X plated HP - 100 rounds - 2 FTF, 1 FTE and 5 bad primers. These ones seemed pretty bad, grouping was 3"-4" with quite a few random flyers. I actually dumped the powder on the ones that didn't got off and found it was clumped together, almost like it got wet or something. Im actually hesitant to use the other 200 rounds I have now.
-CCI Quiet-22 710FPS (to see if subsonic will work) These caused a FTE almost every other round as I expected. Maybe once the spring is worn and the bolt is a bit smoother they will work better. I also noticed they seemed to hit quite a bit lower then the other ammo. I didn't really shoot enough of them to get an idea of the accuracy.
I didn't get to test these ones so if I do and they are significantly good or bad ill update the post.
-ELEY target
-Federal Premium Target
-Lapua made in germany Standard Plus