Witzkatz wrote:Now, what I noticed was: While a normal boltgun, which everyone of you knows, has a breechblock clearly meant to eject spent bolt casings, a stormbolter does not feature a breechblock or any kind of other visible device to eject spent casings.
I'm not sure which storm bolter models you're looking at but the captain's
SB, the rhino's
SB, the terminators'
SBs (current, 3rd ed. and old) all have an ejection port on the right.
But only one.
So, presumably, the two bolters fire simultaneously (doubling the recoil) and the case from the left bolter is kicked all the way through the right bolter's breach.
Dubious indeed. It would make much more sense for both sides to have ejection ports and to alternate firing, giving the same rate of fire and recoil but allowing much more sustained firing (as each side has twice as long to cool). If you optimised the bolts and recoil springs/buffers for this lower rate of fire you could significantly reduce felt recoil, giving you a gun that you could happily blaze away with - especially with a nice pair of drum mags.
But real-life has little to do with
40K, especially as applied to weapons. (just check out some of the necromunda artwork - revolver barrels that are clearly 3-4x the diamater of the chambers. Autopistols with very deep (long) magazines in front of the grip and much smaller ones in the grip. etc.
ETA, there is a real-life equivalent (in prototype at least). An M16 based pintle weapon was developed that was two m16s on top of each other (the top one upside down). Each was a complete weapon with drum mag but the gas tubes were crossed (so when the bottom one fired it cycled the top one and vice versa) and the top one had it's trigger locked back.
Each pull of the trigger was two shots and the
ROF was the same as normal but it was much more capable of sustained fire since it was firing from alternate barrels.