07-11-2011, 03:20 AM
Well I finally had a chance to go out to the range tonight and took a cordless drill and some drill bits with me. I took off the gas block along with the attached gas tube and drilled the gas port hole from .062 (1/16") to the next size bigger in my drill box .077 (5/64"). I put the rifle back together, cleaned the barrel real good, I put one round in the chamber and loaded an empty magazine into the mag well. I took a shot and the bolt ejected the round but would not lock back with the empty mag. I knew I was on the right track so I removed the gas block and tube again and drilled the gas port out to .093 (3/32"), did a good cleaning again and fired one shot. This time the bolt ejected the round and locked backed with the empty magazine. I shot off about 10 rounds before dark and this rifle worked flawlessly. I wasn't able to group real good because I was just shooting off my shoulder. All the brass looked good on the out side but I did notice that a few of the empty cases were slightly crimped at the neck of the spent cartridge. I'm glad that this rifle will now cycle and will post some groups later. This is a 20" barrel and .093 is my gas port hole size.