Can you use #4 birdshot for 3 gun matches? Or is it too big for the rules? I don't like 7 1/2 or 8. I have had problems knocking down steel with it. 4s work very good. But I've been told they are too big? Is there a max size in the rules?
I also use MFS ammo for my AR, is there any problem with that?
I also use MFS ammo for my AR, is there any problem with that?
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