Sig Sauer's 90gr V-Crown JHP. The ten-shot string returned these numbers:
LO: 897.6This is about 60fps slower than the box flap velocity claim, and gives an average muzzle energy of 168 ft/lbs. Recoil seemed milder than most of what I'd been shooting, too.
Winchester's 95gr W380D "Defend" JHP:
LO: 837.5That's also 60fps below the claimed velocity, and works out to an average of 166 ft/lbs. There was noticeable muzzleblast in the sunny, noontime pistol bay, which makes me wonder what it looks like in the dark. I'll need to look into that.
Then I went back to the main firing line to shoot both of these loads at ten yards for groups, just out of curiosity.
That's 640 rounds in the books with no cleaning or lubrication. There have been three light strikes on primers (#140, #357, #628), but otherwise the pistol has gone through the complete cycle of operation with each pull of the trigger. 1360 rounds to go.