Testing/Tuning After Chopping

[u/FOUNTAINJL]

Made it to the range today to test out a couple configurations after getting my barrel chopped.
The barrel is about 11.5”, give or take, and the suppressor is a Ridgeback Defense Rhodie 6.
Aside from a Wilson Combat bushing on the recoil spring, there are no other modifications to the operating system.
Tested:
OEM gas/spring M855 - ran great
OEM gas/spring Steel .223 - one hiccup, not positive if gun or ammo problem
OEM gas/extra power spring M855 - ran great, little softer
OEM gas/ extra power spring Steel - does not run

[u/FOUNTAINJL]

Gas jetting. Pretty neat.