I think I'm going to get a brick and see what it's like. I have two cases of norma match that will hold me for a spell but your right about some .22's tend to be fussy. Nu Win low wall is a little picky and the 52 win is even worse but I just can't say this about my CPA I haven't found anything it won't shoot.
I don't know what it is with my rifle maybe the heavy barrel or chamber the fast lock time this rifle has it just shoots anything I feed it. Those little silhouette targets yo gave me a link for I shoot at 50 yards as well as the round targets they are about at the limit of my eye sight the Star target I shoot at 130 yards and that group is under an inch using fed bulk ammo. The round targets were shot with Norma Match the critters 30 year old Rem target standard velocity.
Now I just wish I could do that off hand