I also like wipe out, my .340 weatherby mag and CZ 550 .416 Rigby which fouls really somthing terrible, its probably the roughest factory barrel I've seen. However an overnight soak with it and both barrels are good as gold. I dont use it for my smaller cals, as my .17's .204 and .222 all have match grade SS barrels so fouling is minimal.

I get my wipe out from Boronia gunshop, always seems to have it in stock so it must not be popular up my way

Steve