COPPER SUCKS in small bore high velocity high pressure rifles. 243 takes a bit of work. me i use lots of soaking with #9 and patches. takes longer then my 30-30 with same chemicals but it does work.
now i could use sweets but the warnings about it hurting barrel steel makes me say 'if i let #9 sit in the bore half and hour its ok, but not if you go past that 15 minutes with sweets..."
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