Maes
I like big butts!
Posts: 8662
Registered: 07-06 |
HWGuy said:
I'm told it was a prototype 40mm pump-action grenade launcher. I could imagine it can be loaded with a round that carries buckshot.
I'd go with the Jackhammer purely for style. That, and its drum magazines were designed to be rigged as landmines.
Holy crap, that would be roughly a 1 1/2 gauge, according to this conversion table. I knew there were early black powder elephant guns that reached upto 4-gauge, but being able to shoot a load of over 300 grams of lead....that's more or less like shooting 10 skeet cartridges all together or 8 standard 36 gram 12-gauge shells, assuming it imparts the same initial velocity as a standard shotgun though (about 400 m/s on average for standard loads).
[physics]
With standard momentum and energy physics, an 8 kg shotgun shooting such a shell would develop a momentum of 120 kgm/s, with a speed of 15 m/s aka 54 km/h if left by itself! That's a shoulder energy of 900 Joules (a normal 4 kg 12 gauge shotgun would give 26 Joules with the same calculations), which is about as "good" as being hit by a sledgehammer!
A heavy shooter (90 kg minimum), with good shoulder contact, should be able to reduce the resulting speed to 1.2 m/s or "just" 72 joules but still, that's almost 70 times the energy on the shoulder delivered by a "normal" 12 gauge shotgun, which would be reduced to 1.2 Joules !!!
Don't be puzzled by the enormous difference in resulting energy, energy transfer is more efficient the closest the weights of the two involved bodies are, so a heavy projectyle will have a much more marked recoil effect than simple multiplication.[/physics]
OK...on the plus side, there's no standard 40mm launchable grenade with such a high muzzle speed, not even with that much weight load. The M576 40 mm "buckshot" grenade has "only" 100 grams of lead, and the muzzle velocity is just 270 ms, which is less than that of a standard hunting cartridge...
...so no, it probably wouldn't be as bad as the KS-23 or even as an old-fashioned "elephant gun", but pretty bad nonetheless. That is, until we find some muzzle velocity data on the KS-23.
Last edited by Maes on 03-22-09 at 14:22
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03-21-09 15:16 
