For CraigyBoy,
Suggest you read the article on brushing/cleaning in which we asked for opinions of many top shooters.
http://www.6mmbr.com/borebrushing.html
From what I discerned is that the trend is to shoot more and clean less and minimize the amount of brushing and use of abrasives. If your accuracy truly doesn't go until 55 rounds or so, then I'd just clean every 50.
I note that MOST of the short-range group BR shooters still clean and brush a LOT, using bronze brushes. They have a very high standard of accuracy to maintain. Still, if you look at the trend of Score BR shooters running longer strings between cleanings, one wonders whether some BR for group PPC shooters will experiment with that too.
Joe Entrekin, 2003 Score Shooter of Year,2004 Runner-Up):
"I shoot Danzac-coated bullets and clean once per weekend--every 200 rounds or so. I haven't used a brush in over six years. Nearly all the top score shooters run long intervals between cleanings."
The BR for group shooters will adamantly and vociferously tell you that aggressive brushing does NOT shorten barrel life and there's no reason not to saw a bronze brush back and forth, even if it reverses the bristles on the edge of the crown.
At the same time, these same BR for group shooters are typically tossing barrels after 700-800 rounds, while short-range BR for Score shooters, who may go 40, 50, even 80 rounds between cleanings, are getting 3000+ rounds from a barrel. Makes you wonder, eh?
Is the longer barrel life,for 30BR score shooters) ONLY because of the larger bore,.308 for score vs. 6mm for group shooters)?
On my PacNor 6BR 3-groove, there has never been a brush or abrasives in it. After 700 rounds, measured accuracy is as good as new, and the throat has advanced only .003". I fully expect another 2000 rounds of good accuracy. At some point I may need to brush to get out stubborn carbon, but that time hasn't arrived yet.
Hey wait--the 6BR is a 6mm too, like a 6 PPC. How come my barrel isn't worn out?? Do you understand why I think aggressive cleaning may be a factor in reduced barrel life in 6 PPCs??
But I'm the first to admit that if you were to walk down the firing line at the SuperShoot and ask the 6 PPC shooters if they think cleaning contributes to barrel wear, 95% would say "HELL NO!".
If Mike Ratigan or Tony Boyer advocate cleaning after every group then I can't argue with that. Still, if you're not using your rifle for short-range BR for group shooting, there's nothing wrong with at least trying a longer interval between cleanings.
B said:
I always clean my rifle after each time I go to the range. I like my guns to be spotless. I will scrub out the boor with a good quality nylon brush saturated in my favorite solvent and scrub like crazy. I will then patch out the bore until it is clean. Than I will run a patch saturated with oil to protect the bore and give the bullet some lubrication. If you do not lube the bore than copper fouling will be significant the first shot therefore accuracy will degrade quickly. If there is sore stubborn copper fouling that I will soak the bore over night with my favorite copper solvent.
B
See notes above. When you "scrub like crazy" you really may be over-doing it. Likewise I caution readers that MOST bore solvents should NOT be left in the bore overnight. With some it is safe -- but read the instructions first!!