20x125mm Japanese


#1

Does someone know what this cartridge weighed, complete? Many thanks!

Cheers

HANS


#2

HE-T Mod 98 = 10.7 oz (303 grams)

AP-T Mod 100 = 11.72 oz (332 grams)

There were other HE loadings in addition, most of them a bit lighter than the Mod 98 (which was the only HE one known to be used in both the Type 97 AT rifle and the Ho-1 and Ho-3 aircraft cannon).


#3

[quote=“Tony Williams”]HE-T Mod 98 = 10.7 oz (303 grams)

AP-T Mod 100 = 11.72 oz (332 grams)

There were other HE loadings in addition, most of them a bit lighter than the Mod 98 (which was the only HE one known to be used in both the Type 97 AT rifle and the Ho-1 and Ho-3 aircraft cannon).[/quote]

Thanks! Was there no AP round introduced prior to 1940 (ie, the 100 Shiki)? Would make little sense otherwise to have an antitank rifle without an antitank round . . .

Cheers

HANS


#4

Oh, and while we’re at it, do you also have a weight figure for the 20x100mmRB Oerlikon? Thanks!

Cheers

HANS


#5

Yes, there was a Type 97 AP briefly described in my source (a contemporary US intelligence document), but just a comment that it appeared to be identical to the Type 100, which presumably had replaced it.

The 20x100RB Oerlikon (Type 99-2) weighed 7.66-7.77 oz (220 g) for the HE types and 7.9 oz (224 g) for the API.


#6

[quote=“Tony Williams”]Yes, there was a Type 97 AP briefly described in my source (a contemporary US intelligence document), but just a comment that it appeared to be identical to the Type 100, which presumably had replaced it.

The 20x100RB Oerlikon (Type 99-2) weighed 7.66-7.77 oz (220 g) for the HE types and 7.9 oz (224 g) for the API.[/quote]

Thanks!

Cheers

HANS