12-10-2020, 11:25 PM
Nimrod,
Yes, you need all the pores filled with copper to smooth that barrel. A better quality barrel will shave less copper from bullets. Just use a cleaner that strips carbon and not copper. Consider cleaning the barrel less. By all means clean the working parts but the barrel is a different kettle of fish.
Your jump to lands is normal. My longest jump to lands from rounds loaded to the max a mag will allow is the 130OTM @ 0.12". The shortest is the stubby bvullets like the 90TNT and 95VMax at .09 and .025 however this does not leave enough shank in contact with the neck for an auto loader so they get pushed further in. The best all rounders are the 123SST and 120NBT at .09". All bullets from an AR mag will have longer jumps than a bolt gun, unless you want to load them individually into the chamber - and what is the point of that. Bottom line, it cannot be helped and is all part of the equation that sees AR's shoot less accurately than a heavy precision bolt gun. In your case it is not jump to lands that have caused group blow out.
Yes, you need all the pores filled with copper to smooth that barrel. A better quality barrel will shave less copper from bullets. Just use a cleaner that strips carbon and not copper. Consider cleaning the barrel less. By all means clean the working parts but the barrel is a different kettle of fish.
Your jump to lands is normal. My longest jump to lands from rounds loaded to the max a mag will allow is the 130OTM @ 0.12". The shortest is the stubby bvullets like the 90TNT and 95VMax at .09 and .025 however this does not leave enough shank in contact with the neck for an auto loader so they get pushed further in. The best all rounders are the 123SST and 120NBT at .09". All bullets from an AR mag will have longer jumps than a bolt gun, unless you want to load them individually into the chamber - and what is the point of that. Bottom line, it cannot be helped and is all part of the equation that sees AR's shoot less accurately than a heavy precision bolt gun. In your case it is not jump to lands that have caused group blow out.