1911Tuner
Moderator Emeritus
a colt 1911 cycle rate is 600 rounds per minute.
The cyclic rate is more than double that. I've fired a legal open bolt FA Mac 11 in .380 caliber...one of the old ones...and it burns'em up quick. The advertised cyclic rate is 1250 rpms. The 1911 in full auto is at least that fast.
i'm sure a lighter, faster bullet out of an auto will cycle much faster
I seriously doubt if that would make any difference at all in a locked breech pistol.
And in a straight blowback, you could increase the slide velocity a little rearward by bumping up the pressure...but that has a limit unless you're into blowing cases. Velocity forward is limited by the spring rate. I suppose you could increase pressure to proof levels and up the spring rate...assuming that you can find a stouter spring for a given straight blowback design...but the increase in cyclic rate would be too small for the exercise to be of any practical consequence.