Has any of the more technically minded people here researched the phenomenon of hammer bounce in revolving hammer actions? By revolving hammer I mean hammers that turn around an axle as opposed to plunger type hammers as in Crosman 1377 and similar.
Looking closely at a Gamo CO2 revolver and an older Crosman it looks like they have by passed the hammer bounce by using a transfer bar. On the other hand it might just look that way, and the hammer could be bouncing faster than the eye can catch it.
By themselves hammers bounce the same as strikers. The transfer bar doesn't help because
it still connects the hammer and valve stem as long as the trigger is pulled. You'd
have to let off the trigger in a couple of milliseconds to beat the bounce.
But these CO2 revolver hammers do bounce less (than say a 22xx striker) because usually
they're mated to in-line valves which require less force to open and have different
forces acting on them during firing. With a 90-degree valve you'll still have bounce.
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