Smith & Wesson Model 10 photo explanation

I'm looking for an explanation of why someone would wear purple examination gloves while shooting a handgun. To me, that's stranger than the cocked hammer.

35W
I never do it with a full size gun, but I do wear examination gloves from now on when shooting my NAA mini revolvers. Those little things are messy, and spit unburned powder and lead shavings out of the cylinder gap hard enough to permanently embed into your skin. I still have a small piece of lead in my thumb from 2017 before I learned my lesson, visible just below the surface. It doesn't bother me, just a reminder to wear gloves any time I shoot it again. 😆 An exam glove is just enough material padding to prevent this, and the long powder burn cleanup afterwards, without loosing any dexterity.

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This. Had another look at the original photo, and the gun isn't rolling up in recoil, so you're indeed seeing the cocked hammer and the flash. Notice the hammer isn't in sharp focus like the gun itself.
Having a seriously hard time believing the hammer bounced that far. Judging by the spur position, that's at full cock, and would have remained cocked.
Moon
You've hit the point exactly

Most of what we're seeing is the flash at the muzzle and the cylinder gap. The gun is in sharp focus because it hasn't begun the upward arc of muzzle flip. But the hammer almost appears to be translucent...because it isn't there. That's where the hammer was in the prior frame and the frame rate hasn't picked up that it is no longer there.

Even with violent hammer bounce, the hammer would never bounce all the way to full cock. I was thrown off a bit at first because I always shoot my revolvers in DA, but once the OP mentioned that he cocked his hammer before shooting it made complete sense
 
Aside the fact that I think it's a cool picture I took at a recent range session, I am looking for the physics and explanation for how the hammer is apparently cocked after the discharge. After first looking at the photo, was puzzled for a minute then came to the conclusion the hammer has recoiled and then falls again in the millisecond after ignition. Never saw or read about the sequence of that. Am I right?
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This is a software and rendering issue.

Not a physics issue.

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But if the FP & primer are hitting in this secondary interaction, you could say the primer’s also whacking the FP, so I’m guessing this secondary interaction could also cause the hammer to rebound, but I’m surprised it’d be by that much.
Turns out that if you "fire" the gun and then play with it while continuing to hold the trigger down, the hammer is unencumbered by the lockwork throughout its entire travel.
I wished I'd seen this thread sooner...I've got a great story to go with this.

I was out at the range a while back shooting a buddy how he didn't need to pause his shot pace when transitioning between targets. He was shooting a semi-auto and I was shooting my L-frame

He asked me to demo the technique and when I obliged, my revolver doubled o_O...which should be impossible because the cylinder wouldn't have rotated to the next chamber...my split between shots was .08 sec

Turns out that if you time it just right between shots, you can stroke the trigger as the hammer is bouncing and rotate the cylinder without the normal resistance of having to pull against the weight of the mainspring. With an extended firing pin and Federal SPP, you can get off a second shot...at least, that's my story and I'm sticking to it ;)
 
Just noticed this thread. My guess: load your revolver and then shake it back and forth. You will hear a rattle as the cartridges slide within their chambers. There must be just enough headspace slop to allow the motion. Then, upon firing, the case head slaps against the recoil shield, and the hammer nose, hard enough to bounce the hammer.
 
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