| From: | Paul J. Adam Paul@********.demon.co.uk |
|---|---|
| Subject: | exchange rates, and APDS...pronounced APP-ee-das ? : ) |
| Date: | Tue, 23 Feb 1999 17:36:39 +0000 |
<gurth@******.nl> writes
>After which it should be noted that the picture of APDS rounds in the
>Street Samurai Catalog is a bit... unrealistic. The sabots (the packing
>pieces around the bullet) are streamlined in the artwork there, which is
>exactly what they shouldn't be if they're to fall off ASAP when the bullet
>leaves the weapon's barrel :)
Actually, there's a couple of APDS small-arms rounds (looks like a
7.62mm Remington Accelerator and a .50BMG SLAP) at
http://www.firstdefense.com/html/arms_arms_and_ammunution.htm
Tapering the sabot doesn't significantly impede seperation: centrifugal
force spreads the 'petals' and air resistance pulls them away with no
difficulty. The sabot's got horrible aerodynamics, and there's little to
hold it to the projectile except friction.
What the smooth taper _does_ achieve, is to keep the cartridge's shape
close to that of a standard round, so it feeds and chambers cleanly:
remember a machine gun is eating ~500-600 of those rounds a minute.
--
Paul J. Adam
