ORIGINAL: lemoyne
I dont use it for polishing it is for lapping and to do that right you use a lead slug either poured in that barrel or swedged in it, other wise you round the sharp edges of the rifling not good for accuracy.
If you just want to polish it a little use jewlers rouge you can pick it up at a hardware store where they sell polishing wheels and such. Lee
I don't mean to start a big debate but you seem to be the only one that feels that JB bore paste is too abrasive to use for polishing. I know a few benchrest shooters that use it fairly regularly and I used it on my new stainless Omega that I could not load any sabots without extreme pressure. It did not seem to affect accuracy with 200 passes of JB on a patch over a well worn brass brush. Loading did become easier and that was before the easy load and crush rib sabots were available.