Need to turn a barrel down---how far?
I decided to make my 16" 7.62x39 AR a little lighter. It's got a Troy MRF-R rail, which has been "chopped" down to about 10.5" and the barrel is 7.62x39 with a heavy profile under the gas tube. It is .730 in front of the gas block, .875 behind it. The bore is .311 which leaves a wall thickness of .282in.
I'm wondering if turning down behind the gas block to .750 will have any detriment to the stability of the barrel. It's a hunting rifle---it might only see 200rds a year. The muzzle device is a Smith Vortex in 1/2x36 9mm because the barrel came threaded that way.
Any and all help is appreciated. Thank you much.
30 caliber junkie.
God Bless America.