US 90mm

[orcutteod]

Anymore info on this US 90mm would be appreciated. Interesting I have seen the US 90mm complete with projectile being passed off as a German 88mm for sale from time to time at gun shows and people buy them.
Thanks

 

[orpheus72]

The shell casing was manufactured by CHA (Chase Brass & Copper CO, CT) in 1953 and filled by OAP (Ordnance Assembly Plant, MD) .

 

[orcutteod]

Thanks for the info, my brother brought one of these 90mm shell casings home when he was in the Marine Corps. It was made from aluminum.

 

[EOD]

Are you sure it is aluminum and not just zinc plated steel?

 

[orcutteod]

Although it was over forty years ago I always thought it was aluminum but it coould have been zinc plated steel.

 

[HAZORD]

90mm Recoilless rifle cases are made out of aluminum, straight piece of aluminum open at both ends, a little over a foot long. 90mm tank cases were never made of aluminum. Too much pressure.

 

[EOD]

This is what I thought.

 

[HAZORD]

The U.S. doesn't use aluminum cases very much for large Ordnance. 30mm GAU-8/9 and DEFA, 40mm grenade, AT-4, 90mm Recoilless, and some flare and chaff cases are the only production cases I can think of. Yes, the AT-4 uses a case. There is a Carl Gustav case in the rear portion of an AT-4 launcher. It isn't removable though.

 

[SHAKY]

Here's a 1953 steel T24B1. Could someone tell me the manufacturer EPO is ?
Cheers, SHAKY

 

[EOD]

epo: economy products co, macon, mo 63552

 

[bacarnal]

There is a Carl Gustav case in the rear portion of an AT-4 launcher. It isn't removable though.

HAZ, Ya just didn't try hard enough. ANYTHING is removable to a determined Jarhead EOD Tech with a 4' pipe wrench, a bench vise and a cheater bar. Oh, I forgot the K-Bar. :wink: Cheers, Bruce.

 

[HAZORD]

OK Bruce, so was the "removed" case in any type of good shape, or was it a twisted clawed up piece of scrap?

 

[bacarnal]

If ya get enough of 'em, you can always make a purty one:xd:

 

[Slick]

As it's been a while since I'd been out in the particular shed used for storage of the big stuff, figured I'd go out and see what I had in the 90MM variety. (Sheesh! way hot out there.) May be fall before I try THAT again.
Anyway, noted that in the '44 dated case, there's a '52 dated primer; the '53 dated case has a '62 primer.
Both are big, heavy brass shells. I think there are a couple of projectiles for them, but it's too hot to dig that deep. See: FALL



UPDATED 3:03P

Found this WW2 era loading data.



Also, thumbed through FM 17-79, TANK, 90-mm GUN, M48 (1955)

Just noticed the stencil markings on the newer shell doesn't list the M48 gun.

Nothing on ammo, although they did mention a sub-caliber training device, which may or may not be cool.