Shoot clean, or shoot dirty?

[lal357]

I've done the same thing, my 22-250 may as well be a shotgun when the bore is clean...

i did this before an f t/r match and it cost me 4 places never again last year. i only cleaned my 308 and 223 once last year i shoot them until the groups start opening up then clean and dirty them right back up my shilen takes 4-5 rnds to get back on zero 223 7-8 rnds