Hmmmmmmmmm... A recoiless Mortar??? A kinda WW2 LAWS???

"In the U.S., inventors Kroger and Musser formed the basis for the shape of U.S. recoilless rifle developments in their Kromuskit design. This design was superior to both the German designs and the Burney rifles in that the driving band featured the rifling already on it, unlike the previous designs which forced a copper ring into the rifling to impart spin. Thus, less gas pressure was to be had and by consequence, the weapon could be made lighter."

"During WWII, US Army ordnance developed a
recoilless 60mm mortar. Intended as a direct-fire weapon, it got around the two problems of drop-firing and
recoil by using (A) a small solid-fuel rocket on
the nose of the bomb, pointing forward, and (B)
a rear-mounted venturi system similar to the
75mm "Kromuskit" RR. The drill was as follows;

1. Place bomb in muzzle (in "hang" position)
2. Attach (8-foot) firing lanyard to rocket,
remove safety pin, step back
3. Yank lanyard, igniting rocket
4. Rocket thrust pushes bomb back into tube
(hard) and onto fixed firing pin
5. Bomb propellant (the traditional shotgun
cartridge arrangement) fires, launching
bomb out muzzle, and
6. Blast of gas comes out venturi, giving
recoilless effect.

Reportedly, the Infantry School took one look at
it- and odered production of the 57mm recoilless
rifle be given top priority instead.
More to the point, we have had "direct-fire
mortar"- type weapons in service since 1942.
Bazookas, 3.5in rocket launchers, M72 LAW,
AT-4, SMAW, etc."

__________________
"Watch that Fu*ker, he'll 'ave someones eye out!" King Harold at Hastings 1066.