Ok AR gurus, I have a question. It's on a DPMS platform AR308 in 7mm-08. Just rebuilt this rifle using a different receiver set and bolt. It was a side charging before and I didn't like it so I went with a regular receiver set. It has an adjustable gas block and is being run with a suppressor. It is having extraction issues and I think it's the bolt, just wanted to run it by y'all before I started buying new parts. With a mag full it would feed the next round but jam the spent case in with it. I started loading 1 round at a time in the mag. It isn't short stroking as it'll lock back on an empty mag. 20% of the time it'll eject the brass. 40% of the time it will lock back with the spent brass just sitting on top of the mag loose. The other 40% of the time the bolt locks back and the case is still in the bolt kicked out sideways. Any ideas?