JB Bore Compound question
When you guys use this stuff do you use a nylon barrel brush or a brass barrel brush? Seems the brass brush would scratch up the barrel.
DH
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Harry,
The only two methods to choke a barrel I have read about are the old school way of polishing the barrel less at the muzzle end and the modern method of squeezing the muzzle end of the barrel in some kind of machine.
Thanks Guys! No accuracy problems encountered. I was curious about barrel cleaning techniques.
Ninj,
Thanks for explaining crown & choke. I have had no idea what either was until you explained. What exactly do they do, and how do you narrow a bore at the muzzzle end? I think it would have to be performed during barrel manufacturing.
Thanks again,
DH
Dirty Harry; Your airgun will not need much cleaning as far as the internals of the barrel. It’s not a firearm, and as such doesn’t need the attetion that a powder burner requires.
Be advised that after a cleaning of the barrel, the rifle may not shoot to your satisfaction (groupings of shots will tend to range ((off target)) until all the oil and cleaning solutions are blasted out). This can take a while with airguns. In powder burners this amounts to three shots. It can take a bit longer with airguns.
My advice is to shoot, and shoot some more! That’s the beauty of air guns. Fun stuff, enjoy. AKULA
The crown is the transition between barrel and open air… the slight angle you see right at the tip. Your thinking of the choke, which is a narrowing of the barrel at the muzzle end.
I only ever use bore paste on new barrels. Give them a few passes with an oild covered rag to get any large debris out, and then a few rag’s covered in the paste and then pass clean rags through until all the paste is gone and then I only ever pass oiled rags through the barrel after that, and even then only if I’m going to store the gun for a long period of time or if I notice a problem with accuracy.
Thanks Akula!
How many passes on average do you make with the brass brush? What do you use as a follow up to remove the paste, and then oil the barrel?
I currently clean my barrel with a Dewey swivel rod and cloth patches, coating the patches with that Beeman 5 metaphilic oil (or whatever it’s called). The Condor barrels produce very little dirt, where as my Patriots are just gunk producing machines.
DH
Dirty Harry; No worries using a soft metal brush such as brass on the interior of steel barrels. These will do a better job of cleaning vice softer materials like nylon.
Remember that your barrel is made of steel and the brush of brass. The brass will not scratch the steel, only clean and polish.
Careful of the front of the barrel as it is probably crowned though (slighly smaller than the bore). I always use a brass brush from the breach and push the rod through. Then I unscrew the head of the brass brush after it prodrudes from the end of the barrel. It passes the time between hunts. AKULA
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When I use JB bore paste, I will take a brass brush and wrap a patch around it.
rub paste all over the patch and do about 20 passes.
The paste will break in you barrel and increase velocity.