Swinehunt74
Well-Known Member
FYI! Have to use plastic bushes on melonited barrels cause they eat the brass off bushes....Or not, too each his own. Other than that, use common sense and let each barrel tell u what they need.
A friend who shoots a lot of shotgun says there is a build up of plasstic just ahead of the chamber. I believe he uses Gumout and a brush. (keep away from wood)I actually do that on my shotgun... I get the plastic residue out of my choke by pulling the choke and hitting it with a drill and brush/solvent... a LOT quicker than ****ing around for a half hour trying to get the last bit of crap from your choke... I wouldn't do it on a rifle... the brush skipping over the rifling wouldn't clean a dang thing... I'm sure you could try it though if you want to...
haven't noticed that too much in my backbored barrels, but that could be a gun to gun thing... If she's really dirty I give her the full monty and hit it with a steel rod and a 10 g brush...A friend who shoots a lot of shotgun says there is a build up of plasstic just ahead of the chamber. I believe he uses Gumout and a brush. (keep away from wood)
The gouges are from the bristles of the brush and the brush is trying to rotate with the twist of the rifling but there is no way every bristle is going to follow/stay in the grooves. - Frank Green
Not really, that was while using abrasives in the barrel and a brush. Will it do that, I don't know. But the post was specific to using abrasives with a brush, not a brush alone.
I don't use a brush for this reason as well. The hard carbon deposits lay in the brush and can scratch the bore.
If you insist on using a brush. I suggest one caliber smaller or an old worn our one and roll patch around it like a cigarette. Push it breech to muzzle and come all the way out. Remove the brush from the rod before pulling the rod back thru. Why? The crown is the last thing the bullet sees/touches when leaving the barrel. And damage to the crown effects the accuracy right away. Pulling the brush back over the crown the bristles have to fold very abruptly and this will wear the crown unevenly and damage it etc… (a lot of people say the bronze brushes are softer than the barrel steel.
I call BS on the cause of the damage using a copper/bronze brush. Even with an abrasive the brush will wear out way before the barrel will.You really blow this out of context. And the post that was posted with the picture the picture for context:
"This is what happens when you use a brush with an abrasive cleaner! I've posted this picture several times and it never gets old as to what can happen!
This was a 7mm (284W) F class barrel. At 100 rounds accuracy started to suffer. The picture is at 800 rounds. The bore and groove should measure .277" x .284". It now measures .279" x .2855"! So basically polished a full .002" out of the bore and .0015" out of the grooves. The lands (the bore) sticks up so it will take the brunt of the damage from improper cleaning.
The gouges are from the bristles of the brush and the brush is trying to rotate with the twist of the rifling but there is no way every bristle is going to follow/stay in the grooves. So the bristles will ride up and over the top of the lands and down the trailing side of the land.
Later, Frank"