Home rolled hunting ammo questions.

[Mitdr774]

My Howa mini 22" seems to really like a 123 SST and Benchmark combination at about 2500 FPS. If I ever find the target I will measure it, but 4 shots in a nice little cluster and the 5th about an inch away. I was really looking forward to an awesome group but the AR pistol to my left and AR SBR to my right firing at the same time as I was trying to screwed up the 5th shot.