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75 x 385R, 90mm rim diametre

S

SHAKY

Well-Known Member
Just a little stumped with this new find. I see Russian 76,2 have the look to be close, but the rim dia. doesnt match up and there are other differences. Then there's a bunch of German cases in the 7.5 cm range which seem very close but I dont know the rim diametre of these. The only head stamp is what looks more like an upsidedown V rather than an A over the G. After a bit of a workout I freed the projectile from the case because I could see the markings on the bottom of it. Although maybe not a match for this case, it would be interesting if anyone could help i.d. this too. What era would these be ? Really any information would be great as I really dont know what I have here. Shaky75mm 003.jpg75mm 004.jpg75mm 002.jpg75mm 001.jpg
 
75x384R93.4N7.5cm IK L/33 , C/34fixed
75x385R86D7,5cm SKC/34 , FlaK 14fixed rim 90mm? as in 7,5cm K?
75x385R90F75mm Schneider ??fixed
75x385R89.8D7,5cm Kfixed
 
Is it readable? seem to have to change background to see clearly the four
75
x
384
R
93.4
N
7.5cm IK L/33 , C/34
fixed
75
x
385
R
86
D
7,5cm SKC/34 , FlaK 14
fixed rim 90mm? as in 7,5cm K?
75
x
385
R
90
F
75mm Schneider ??
fixed
75
x
385
R
89.8
D
7,5cm K
fixed
cases in the above extract from my list.... maybe this will work?
 
Last edited:
Thanks Gents. The primer hole is 30mm. Also would say the rim diameter is a bit smaller than 90mm, closer to 89.8 as stated for the 7.5 K in your list. I find it unfortunate not to have much of a head stamp. If it were of German manufacture, I would suspect there would be more markings? Export ? SHAKY
 
30 mm is the diameter of russian type primers. So it must be a 76,2x385R case. I think it is also possible that you have a canadian or US export case. The last and may be the first line of carleys case list extract contains failures I think. The last two lines should be one line and they should be calibre 76,2 mm (3") even if there are headstamps from many non russian factorys.

A german 75x385R case (7,5 cm Patronenhlse 34) would have a 33 mm primer hole and such ones are really rare cases.
 
Japan also made these cases for Russian captured guns, they may have been without much of information in the stamp.
 
I see on an old post, a C/34 export case is 75mm and longer with a 97mm rim. The primer hole did look a little larger than mine. Were not some captured Russian guns rechambered to 75mm ? And most Russian cases are 76.2 and look very similar with almost unnoticeable necked down end like mine, but mine is definately 75mm not 76.2. Japanese sounds close with it not having much of a head stamp, so something else to look into. Maybe it will come down to the rim diametre to i.d. this. Any guesses on the date this may be? Or any thoughts on the projectile? Thanks again for the help everyone. Cheers, SHAKY
 
your projectile also looks like 76,2 mm - the crimp groove in this position is very typical for them. The base of my 76,2 mm russian shrapnel meassures only 74,85 mm so the inner diameter of a 76,2 mm case is around 75 mm but it is still a case for a 76,2 mm gun (my 1st WW russian case meassures 75,3mm, but it's a fired one).
 
Thanks much for the information everyone. Alpini, this is just what I needed to hear. It is named as 76.2 but actual dimensions show it is 75mm, or actually just short of 75mm at about 74. 8 or so. The markings on this projectile are CH16 at twelve oclock then clockwise around as follows. HP, VI, FZ, and C88 (the C has vertical line through center) at the 11 oclock position. I guessed that the CH16 may refer to the date 1916? The Russian 76.2 cartridges are what most closly resembled mine, so I appreciate the confirmation of actual dimensions.
Great thanks again. SHAKY
 
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