and a few different photos showing throat erosion in a 22 that still groups very very well
this is my sons model 2 brno with a micro grove bore
first is where the throat should be
next is at 1" up from the last photo showing lands but they are rounded and not in good order
then at 6" up from the first showing good lands in the micro grove barrel
this 22 rimfire shoots very well with subsonic ammo, as good as any other IMO
this photo is of 2 seperate days checking it is sighted in @ 60y, the shot out of each group is the first
it shows a 22 rimfire bore that is not pristine can still shoot
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