No.
Only in the older Colt does the hand serve a dual purpose.
In those, it rotates the cylinder around into lockup position with the bolt (or cylinder latch as Ruger calls it), and when the trigger's fully pulled to the rear the hand is forced against the ratchet under pressure to also provide SOME of the lockup.
That "locks" the cylinder in place & prevents any little rotational play common to other brands & later Colts.
In other revolvers, the hand only serves to provide one function- it rotates the cylinder into full bolt lockup, in battery.
Once it's done that, it does nothing else.
It does not produce significant lockup pressure against the ratchet with the trigger pulled back.
The Colts were designed to do that, others are not.
That Colt design feature is the V-Spring's greatest weakness, since it does maintain pressure by, and on, the hand at the moment of ignition.
The hand takes a good thump on every shot fired, which eventually wears it faster than other designs.
The hand shortens over time, faster than any other revolver using comparable quality steel.
That results in that older action going out of time sooner than competing designs., depending on how much & what you shoot.
Colt dropped their famous "bank vault lockup" with all of their DA revolver designs that followed, and that weakness is one of the major reasons why.
Taking S&W vs Colt for comparison purposes, you typically correct for timing issues in a V-Spring Colt by replacing the worn/shortened hand with a LONGER hand (in the old days when Colt had replacement hands) or by peening it to stretch it longer (current fix, since Colt has no more hands for them).
You typically correct timing in a Smith by replacing with a WIDER hand.
The hands in those two actions do not serve exactly the same purpose & do not function in exactly the same way.
Testing for cylinder lockup with the trigger pulled & held back will tell you exactly nothing on any revolver other than the old Colt V-Spring actions.
The "Trigger Test" is a widely held myth & does not apply across the board.
In some cases, with tolerance stacking, you may notice a very slight difference in lockup with the trigger held back on non-Colts, but it is not a design feature, it is a mere happenstance, and it has no validity whatsoever in determining, measuring, gauging, or judging lockup on anything BUT an older Colt.
Denis
