Re: DS II: Just to make trouble

A quick comparison...

Non-Driving Bands
5.56x45 (5.56 NATO)  generates c 1,680 J.
7.62x51 (7.62 NATO) generates c 3,275 J.

12.7 x99  (.50 Browning) generates c 16,774 J.
12.7x107 (Soviet) generates c 15,570 J.
14.5x114 (Soviet) generates c 30,215 J.
Driving Bands
15x115 (FN 15mm) generates c 38,588 J.
20x102 (M39 for the M61 Vulcan) generates c 53,575 J.
20x128 (KAA) generates c 66,150 J.
20x139 (HS820) generates c 72,600 J.
23x115 (23mm Soviet NS) generates c 47,915 J.
23x152B (23mm Soviet VYa) generates c 92,500 J.

Driving bands are o-ring seals on the outside of the prjectile to
prevent
excessive barrel errosion.  FN tried to make their 15mm work without
them, but
failed.
c is circa (about).
J is Joules of energy.

This does not take into the effect of explosive warheads, just kinetic
energy.
I hope this helps in the debate over what the 15mm Soviet is...

IAS