posted on Jan, 20 2005 @ 05:15 PM
Originally posted by ShadowXIX
I wonder way the UK went with the Rifled and the US with the smooth bore. What would be advantages to both designs?
[edit on 16-1-2005 by ShadowXIX]
Rifled guns can fire HESH (High Explosive, Squash Head) rounds.
They "pancake" onto the surface they hit and detonate, sending a flat shockwave directly forward. On the inside of a tank it will rip out a scab of
razor-sharp metal and the flying debris and the scab kills everyone in the tank. It also makes nice pretty holes in concrete.
Unfortunately with new armour (which disperses the shockwave because of the air gaps and the different materials) HESH isn't so good against
state-of-the-art tanks. The army here like it so they asked for rifled guns.
Rifled rounds tend to be slightly more accurate.
The disadvantage? it can't fire rounds with as high pressure as you can with smoothbore, and designing APFSDS rounds to work in a rifled gun is a
technical nightmare, which we solved with a seperate powder charge and heck-knows-what-else.
The only countries that use rifled guns in their tanks as standard are the British and the Indian armies.
[edit on 20-1-2005 by Cjwinnit]