By changing direction of the polishing,you can tell much better when to go to the next finer grit, but always finish parallel to the barrel.I like to finish with worn 320 grit.Don't be afraid to work "buggers"
with a swiss file, but "fair it in" to the adjacent surfaces.You can use a file card to clean the file quickly, but the advice to use the copper(although I use a cartridge case with the neck flatened)to clean out the "pins"is very good. It is heart breaking to almost finish and scratch the surface,chalking is also good advice.
Mike

Last edited by Der Ami; 02/17/15 06:09 PM.