TargetTalk

I'd be the first to admit my method is a trifle crude, but we're only talking of a light polishing, not a hogging out of the chamber.

The main structural member of a bore brush is a twisted steel core. The last thing you should do is put rough pieces of steel in a drill and stick them in your chamber and spin them around in there.

You should create yourself a split arbor and use that if you feel the need to polish a chamber.

Rover wrote:I'd be the first to admit my method is a trifle crude

So why not use a better one?

but we're only talking of a light polishing, not a hogging out of the chamber.

600 grit paper will destroy the fine detail of the lede in about one turn - IMO

Plus it will clog instantly with any lead deposits leaving the unclogged areas clear to rapidly cut through any exposed steel -> Making your problem worse, not better.

I suppose the advice one gets on the Internet is worth what one pays for it.

I tossed out my suggestion because I thought anyone could easily do it, based on my own professional experience with small tools and fine work, but I came to realize after the comments here that many are so ham-handed that they should leave any 'smithing activities to a pro. Of course the "Peter Principle" and "Pohl's Law" apply in that profession, too.

Feel free to take or leave my advice. You won't hurt my feelings.

I did not have time to read through all of the replys but I would recommend you have the barrel set back. A gunsmith will remove the barrel and cut off an inch or so and then machine a new chamber and install it again.

I would make sure to talk to other small bore shooters in your area and find a gunsmith that does work on target rifles.

I picked up a used Anz. mod 54 and had this done and it shot great after finding a good ammo and lot.

@Chris

If you read the latter part of the thread you will notice the problem was solved by getting away from a specific brand and lot of ammo.

No cutting and rechambering required.

'Dude