40 and 37mm projectile question


#1

Any Idea what case these belong in? Left is a 40mm APT with a 12 stamped on the base, the other is a 37mm APT And looks like it may have a 1 and A on the base, but hard to tell for sure.

Thanks!
Steve


#2

Steve

The 37MM looks suspiciously similar to the M80 APT I have for the P-39 gun. An OAL might help narrow things down. My specimen is +/- 4.66"/107mm.
Mine also has a very faint impression on the lower section rotating band:
LOT-77-23139-28-1942-EM-37MM-M80
Base markings: 17 and OB

Rick


#3

Rick,

The projectile is 123 mm in length, no markings on the rotation band.

Steve


#4

It did look a bit longer in the picture; wasn’t sure if there might have been distortion or some such. The rotating band and crimp ring are near identical to the M80. Or appear to be.
New WAG: M74

Rick


#5

Rick,

I thought it looked a bit different also. But the rotating bands and lower part of the projectile looks almost identical to yours. The sectioned 37mm TP I have does have M80 stamped on it.

Steve


#6

Rick,

After looking it up I do agree its a M74.

Thanks!
Steve


#7

If it is an M74, the case you’d be looking for is an M16 or M17.


#8

Rick,

NICE collection there! Yes the 37x223R correct?

Steve


#9

Yes. Probably for sure.


#10

Now for the 40mm. Projectile, 100mm in length. It came in a 2Pounder brass case, and I not sure it that is where it belongs.

Thanks
Steve


#11

Most likely a 2 pdr. Maybe Mr. A.G. Williams will see this and confirm.


#12

Thanks! HA! Probably for sure? Is that an oxymoron or a SWAG?


#13

“Probably for sure” = Absolutely most likely.


#14

I see…I think…


#15

I don’t know what that is, the only British 40mm AP projectiles I know are longer. The 2pr tank/anti-tank AP shot I have (for the 40x304mm case) measures 130mm long. The AP shot for the Vickers S 40mm aircaft gun (for the 40x158R case) is about 160mm long. There may be others that I don’t know of.


#16

g503.com/forums/viewtopic.php?f=27&t=171524

By the way, got similar AP-T sample, but it differs from these shown here…


#17

failiem.lv/u/altpiim


#18

UK 40 mm AP looks like?


#19

Welcome here PanzerFausteR!

I think the one in the link above is a British 40x305R 2pdr AP-T.