Hmm well I have a couple of older Norma ammo catalouges and one has an article on bore clening in the back. Norma claim that 1 dozen strokes is the minimum to use and the brush needs to go both ways to do a proper job, their coment is :-
"have you ever tried painting using the brush just going in one direction?"
Norma at this time also had a custom gun shop
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rem700 made a good point, if your patch is overlapping the full size diameter of the jag where it screws on it will be tight. Using a smaller patch of course is one soloution, a thinner patch is another, attaching the patch a different way is the third
. You will get there in the end
.