Back today with the can. 11 grains of 1680 yielded 985 average without the can on, but still no BHO. Added the can, and the extra back pressure made it 100% functional. Ended up turning the gas black down until it didn’t hold it open, then back out a half turn. 3 consecutive shots with the bolt staying open to confirm, then ripped off 5 in a row. Zero hiccups. Wasn’t really trying for accuracy, but it put most everything in a 6” group at 100.

Lilgun refused to function.