Awesome, I'll have to pay closer attention to it next time I run a bunch of rounds through it. What are you using to clean the chamber?
I am now using boretch c4 carbon and c2 copper, it was on sale after I ran out of hoppes9. Sinclair bore guide and a tipton carbon fiber rod. I figure that combination is the least likely to drag a rod across the barrel that many claim to be why cleaning is bad.
I do the bore and chamber at the same time since I already have it all out.
-Ill soak a patch with the c4 carbon, send it through, soak a second and send it through again. Only the couple minutes it takes to unscrew the jag, extract the rod and then re put it all together between them.
-Then Ill take that patch, load it up with carbon cleaner again and just insert it enough so that leaves the bore guide and the saturated patch is physically sitting in the throat on where the carbon ring develops ensuring that it is getting the chemicals on it. Ill then leave it sitting for a half hour maybe? Long enough to go away and do something else before coming back to it for a good soak.
-Ill then take an old bronze brush and run it down the bore a time or two and then Ill short stroke the throat to take and use that mechanical action to more forcefully remove the hopefully chemically weakened carbon ring. I tried to use just patches initially but I still got marks on the bullet, not so after the brush.
-A dry patch or two to clear the bore of the carbon and then Ill just take a bit of paper towel to swab the chamber without pushing it too deep, stick it in a bit and just twirl it lightly to wipe the walls down. Even with a bore guide some of that crap still gets back in the chamber and the paper towel can remove a bunch of it quicker than a small patch or two at a time.
-Then Ill to a couple passes with the copper remover. My rod and jags arent solvent proof so theyll turn blue even with no copper present but a couple passes witha light soak should be more than adequate. Then a pass or two witht he bronze brush for some more mechanical action.
-After than some dry patches to get it all out, an oil patch or two to try and flush it a tad and then another dry patch to remove the surplus oil from the bore.
So thats my long drawn out steps for a relatively simple process. I think its the short stroking of the throat with the bronze that gets rid of the carbon ring primarily.
I really only do this every... I want to say 3-400 but in actually looking at how often I clean and how many bags and boxes of bullets Im going through Id say 6-700 rounds in between is more likely. I put it off until the target tells me to but thats never really happened; its been the chambering thats telling me when I need to clean.
I also like the idea of wipe out being safe for long term exposure and just spraying the bore and leaving it over night but wipeout wasnt on sale when I needed it.