Took my new to me hellion out today and man it just ripped. It's been out twice before but just wasn't fully spot on. Sized at a .284 running about 285 on the Chrono and it ran all day no chops with 4 star gi paint. Probably ran 2/3 of a case through it. One thing I did different this time. Dialed with the pressure meter to 160 factory 7 turns and did a fine tune off the reg vs the back of the gun. Seemed to behave a lot better then tweaking it at the dwell valve. Could also have been up sizing the insert to the .284 and a liberal amount of dow 33 on all rings but it really made me fall in love with this gun today.