brush size for 6.5cm

[JRBullock1987]

what does everyone use for a brush size for a 6.5cm to clean their chamber/neck and area where carbon ring usually builds up?
I have everything to clean the bore and chamber cleaning kit but dont have a brush to clean the chamber neck area and where the carbon ring builds. I was thinking maybe 7 mm or 30 cal but maybe a 30 cal is too big. idk.
thanks,
justin

 

[Supersubes]

If youre spinning the brush, the 30 cal will work fine. Dont try jamming it straight in, or it will get stuck.

 

[Rob01]

If you are using a brush to clean the bore it will clean that area too. No need for a special brush. The chamber itself doesn’t need a brush. Just some solvent on a larger patch spun in it.

 

[JRBullock1987]

If you are using a brush to clean the bore it will clean that area too. No need for a special brush. The chamber itself doesn’t need a brush. Just some solvent on a larger patch spun in it.

Good to know thanks. By chance do you know what causes your brass to have carbon fowling that goes below the neck and onto the shoulder and if there's a solution or if it even matters? I was thinking maybe it's from a carbon ring building up allowing fowling to prevent the neck to sealing off before the fowling sneaks by?
I'm running a suppressor so idk if that makes it's more dirty or not. I'm new to bolt guns. Only ever owned semis so idk whats up helf the time with bolt guns lol

 

[Rob01]

Just blow back. A suppressor can add some of that just like in gas guns. Nothing to worry about. Toss it in the tumbler and rock on.

 

[DeathBeforeDismount]

A little bit of a bump but I go up a size.

Nylon does almost nothing. I can run a nylon brush through 20 times and then a patch comes out clean. Swich to Brass brush and same 20 strokes it will come out black. Nylon doesn't scape up hard carbon.

For 6mm, I run 6.5mm Brass Brushes (pro shot can be bought in bulk)
For 6.5mm I run 7mm Brass Brushes

Brushes wear out fast so you may only get one or two uses before you need to chuck them. Hence why you buy in bulk.

 

[Mike Casselton]

Brushes clean on the tip of the bristles, not the sides.
Using the next size up will only cause it to fit tight and wear prematurely.
Buy the proper size.

 

[Edsel]

what does everyone use for a brush size for a 6.5cm to clean their chamber/neck and area where carbon ring usually builds up?

If you have a definite carbon ring, judicious use of an abrasive will address it - just don’t let any get into the bore.

Even Mothers Mag & Aluminum Polish will do.

If not, just use your usual solvent.

Use a pistol cleaning rod with a patch wrapped around a 6.5mm nylon brush, and rotate it by hand.

Take some measurements prior, but you can usually feel if you’re going too far into the rifling.