We all want that. My position on 10 shots is proving the rifle, the rest is the mercy of the ammo. Actually 5 is all I need to prove my work.
I am from a centerfire long range benchrest background. In centerfire we shoot 5 shot groups with 5 group AGG. for results. I shot 3 IBS world records in 600yds. I was the first to shoot below 1" with a 0.749" Light gun record. Not bragging, just to let guys know, I know what I am doing.
I started shooting Rimfire long range about 5 years ago. I use the same 5 shot groups aggs for testing. I have been jumped on about 5 shot groups, not being enough rounds for testing.
I'm in no way saying 10 shot or more are not a good way to test, it's not for me.
David I know what you are trying to do, with your 10 shot groups at a test range, where you have no conditions, or shooter error. You are just testing the gun, with each ammo. I know the ammo is our limit.
I am asking why in rimfire, how did we get to groups 10, 20, 50 shots? David this question is not so much for you , but for the group. Rimfire is a BEAST compared centerfire. Gun handling is the main issue in opening group, any inconsistency will change the group. Wind that you can not feel can open groups. Will this effect a 10 or 20 groups more or not. For these reasons alone, is why i shoot 5 shot groups.
Are we expecting too much from a round that will walk around the bullseye all day long, but still shooting great groups. And can shoot great in the morning and so so in the afternoon of the same day. Then the dropouts at long range. Making you say what the hell was that. Sometimes you just can't tell what the next round is going to do. Rimfire is a Beast, but I love it. I sold my centerfire and got more rimfires.
David keep up the good work, you guns are great.