New Home › Forums › Airforce Rifles/Pistols › JB Bore Compound question › Reply To: JB Bore Compound question
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.