Sadly, the last 5 guns were boomers, mostly .44 Magnums. I thought I had a bunch of .44 Special, but NOOOOOOOO, I picked up the wrong couple of boxes, and rather than go home and ferret out more Specials, I decided to shoot the Magnum stuff — Remington 240-gr JFP screamers. Cool with my ancient M29...then the 3 1/2 inch Alpha Precision 629 custom...then the 329PD. By then my right hand was approaching numb, but the Alpha Precision shot great groups. On round 3 in the 329, the lock failed...the stupid "LOCKED" flag popped up and caught the hammer on the way down. I unjammed it, on camera, with a multitool.
I ran another cylinder full of the Remington stuff without incidence. But at this point I have to say that you should NOT trust an ultralight S&W magnum revolver with a lock for serious purposes!
Shot a cowboy match today and everything went great for me...unfortunately my Sweetie's Marlin .32 H&R pretty much came apart. She switched to a back=up Navy Arms M92 .38/.357 and shot clean the rest of the match.