Stache I'd guess about 80% or better of the shooters just start shooten with no break in. You didn't damage anything. I'd just give your mini a good cleaning with a copper cleaner, and continue breakin. The purpose of the breakin is to lap the bore and smooth out, the machine marks for a little better accuracy, and to prolong fouling.
I went a bit further with my new SS ranch mini, I firelaped the bore, to smooth the bore even more, and remove a couple of tight spots. The average grouping improved 1/4". It works for me
I went a bit further with my new SS ranch mini, I firelaped the bore, to smooth the bore even more, and remove a couple of tight spots. The average grouping improved 1/4". It works for me