[stagpanther]

I went out again today--and tested some more of LD bullets--this time I was using a heavy spring and 5.75 ounce PCC buffer. The carrier was still slamming back pretty hard even with the gas block letting off a lot of the gas at the port.

Long story short--I have no idea what's going on. My quest is now to get a "real-world" pressure rating on factory ammo (not somebody's "way back when 26 inch barrel using ammo that isn't even made to that spec now") and then see what I get with pressure trace. Even though I got no notable signs of pressure or gas leakage, I feel like I'm operating in the dark.