Originally Posted By: The Famous GrouseKeep in mind that some rifles don't produce the best accuracy when clean. They like it dirty. Also, cleaning will often alter the point of impact or consistency to some degree.
Also, I think that many people worry too much about cleaning and the impact of a clean barrel on accuracy. When I'm shooting varmints, I seldom notice any drop off in accuracy after even 500+ rounds. I had occasion to check the zero at 200 yards on a .22-250 that had over 1000 rounds on it without being cleaned. The rifle had been leaned up against a bench and it fell over. The accuracy was the same as the last trip to the range before we left on the trip.
I cringe everytime I hear someone say they sighted in a rifle, then cleaned it.
Grouse
^^^I have done a fair amount of cleaning and reloading in search of that `most accurate load`. I quoted Grouse here, because it took me
awhile before I ..IDK..I guess you could say `come around to accepting this or practicing it`. Good point worth mentioning.
Could prob. find a thousands threads on this subject with a couple thousand different methods if you change solvent brands
I let my barrels cool now before cleaning. Read a article once on cleaning SS with ammonia based solvents while the barrel is warm or hot is not a good idea. In my line of work we talk a bit about IGSC intergranular stress corrosion so it made sense.
My method.
1) wet bore and chamber with #9 and soak a couple min.
2) snug patch on jag then repeat step 1 then step 2 again and wipe out chamber with larger than bore swab.
3) wet bore with kroil or #9 then bronze brush chamber to muzzle then remove brush, then patch on jag.(I don't drag bronze back through anymore)
4) repeat step 3 a couple times, black residue should be about out.
5) now I might use #9 bench rest copper solvent and let soak overnight followed by clean patch and soak again followed by clean patch OR
if in a hurry, Barnes CR10 follow directions on bottle.
6) wet bore with kroil and then jag / patch with synthetic lint free patch and done.
this is my basic routine and I always use a bore guide and sometimes use a chamber brush / cotton swab to remove crud from behind barrel extension bolt lugs on AR`s.