02-02-2022, 10:14 PM
Dr. Lee Wrote:I certainly don't want to be touching or jamming bullets in an AR. That's why I'm trying to get a clear picture of this chamber.
In an AR the longest OAL you will get is 58mm from a Stainless Steel mag. Mark will have reamed the chamber to SAAMI spec which is longer than the mag. You will not be able to play around with jump-to-lands like bolt gunners do. It will be a case of trying different bullets, powders and neck tensions, if you can find components.
Fattest measurement for 120NBT's this end is .2635.