The season for testing guns with full-auto is now upon us again and MrGunsnGear takes a slightly different path by testing chrome lined barrel and nitride treated barrel.
Chrome lined
Nitride treated barrel
Edit: Closing thoughts
And Iraqvetran8888 decided to take another turn and try out the test with CMMG 22 lr
From: MrGunsnGear, Iraqveteran8888