@oralloy,
The video on the rate of fire was interesting, but unfortunately, staged. Why do I say that?
AR15
- emptying a magazine the first time around took around 3 seconds (or 1 every 0.231s - so a 14 round magazine isn't much different, and the 3 seconds is an estimate based on times in the video).
- 4 seconds to reload and start shooting again
- emptying the second magazine (after it had been changed) took 17 seconds
- that includes 9 seconds to recognise a jam and start shooting again
- meaning he took 8 seconds to empty the second magazine, and he was pulling the trigger almost 3 times slower than the first time.
Regarding the jam - all I can find (never owned one) is that the AR15 has an extremely low jam rate, with one person claiming every 500-600 rounds it will jam. That would make it one jam every (500/14=) 36 Magazines. That then makes me wonder how many shoots the exhibitor had to take to get his AR15 to jam, so that he could use it in his video. Edit: just realised you could use a inert bullet of some sort to simulate a jam. Still staged.
What you get from that, is the real rate of fire, and one where the 'exhibitor' isn't fixing the results, is that the AR15 should should at:
(60 / (Time to empty magazine + time to reload and start firing again)) x Magazine Size
So
60 / 7 = 8.57
8.57 x 14= 120 rounds per minute (so 20 revolvers)
If you wanted to include jamming into the equation, then you would need to extend the time to (jam rate of one ever 36 magazines divided by 8.57 per minute =) 4.2 minutes per average jam, or do a ratio for one minute (9 seconds to fix jam / 4.2=2.14 seconds. 2.14 /3= 0.7133. 0.7133x14= 10shots). So including the jam rate from evidence in the video, is 120-10= 110 shots per minute (just realised I didn't include magazine changes, but too lazy to change it. Number would be higher than 110 with that included).
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On the other side:
- that was an impressive number of revolvers he had hidden
- I've seen speed shooters who can shoot revolvers much, much faster (admittedly his firing rate was much closer to the vast majority of people)
- he wasn't particularly aiming the revolver or AR15. We of course know which is more accurate by far when just pulling the trigger as fast as you can (and not highly trained).
- he slowed down on the revolvers as well after the first change, though not by near as much