YMMV, but my two Mark 17s just swung from 135–136 at 3000, to 141–142 at 200 psi. I can live with that in a Mk19.I'm just asking as my memory ain't what it ought to be.
Isn't the MK19 a MK17 with a turret. Haven't some of you guys complained that the MK17 had an issue re balancing? I.e. a huge change in IP with corresponding tank pressure?