Hey guys, real quick, and probably real easy question
Anyone know if any 1/35 scale replicas of the OCC 105 F1 HEAT shell exist out there? I’d really like to display some along my M-51 Super Sherman, but no matter where I looked, I couldn’t find any.
I mean, there aren’t any photos of it in its cartridge online, only a single cross section of the shell itself…
I guess it’s just too obscure?
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Jane’s to the rescue. Well, somewhat, anyway. Here’s what I found in Jane’s Armour and Artillery 1981–82, after first looking in 1985–86 which has much the same info but no photograph:
So now we know the AMX 13’s gun used shorter cartridge cases than the AMX 30, which I take are the 904 mm and 899 mm long cases mentioned just above the last range table. But this seems incorrect somehow: NATO 105 mm cases are 617 mm long, these would be 50% longer which seems excessive. So I’m guessing what Jane’s is quoting here is the length of the whole round, including the projectile.
Aha: the CN 105-57 gun is 105×528 mm R, per Wikipedia.
Looking at the cartridge case for the APFSDS round, it seems very similar in profile to NATO-standard 105 mm ammunition, so you could probably get away with taking one of those in 1:35 and cutting it down to the correct length. That would be 528 ÷ 35 = 15 mm.
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Thank you all so very much! Especially for the photos! I think I can make my own with these!
Just one last problem, that I’d be extremely grateful if anyone could help me with (I know I’m being super rude with this, please forgive me 
)
Multiple sources say that the shell’s casing was shortened for the M-51 so it could fit in the cramped Sherman turret, and so it could actually be loaded into the breech
But I couldn’t find any mention of the new casing’s measurements
I guess if I end up not being able to find the measurements I’ll resort to just making it the normal size, but if anyone knows the measurements of the M-51 custom case, I’d be eternally grateful!
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On a side note, Verlinden’s IDF M-51 stowage set (#2723) includes a few ammo rounds. Maybe there’s a OCC among them…
Or maybe you could use one of the included casings and add your scratchbuilt OCC shell…
PS : providing the set parts are dimensionally accurate…
H.P.
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See my initial post: the case’s length is 528 mm. I don’t know the diameter of the rim, but measuring in some of the photos posted earlier here makes me think it’s ca. 150 mm, and the diameter just below the shoulder (the section where the case gets wider) is about 125 mm. The neck (the straight portion of the case below the projectile) is about 60 mm long, the shoulder is ca. 85 mm. Red is real-world, blue is 1:35:
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That’s like asking if Tim Kennedy’s stories were accurate. 
And no, that round is not included in the set.
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Ah yes, I saw this post, but, these are the measurements for the original shell fired by the AMX-30, however, the Israelis had to shorten the cartridge itself, because they used it in the much smaller and more cramped Sherman turret
So, I’m looking for the smaller cartridge dimensions
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Thank you for your help! But, no, it seems all the shells in this kit are standard 105mm shells used by NATO tanks, none of which were used by the M-51
And like @18bravo said, the OCC 105 F1 is not present 
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No, 528 mm is the case length for the M-51 Sherman and AMX 13. The gun for the AMX 30 uses the same 105 × 617 mm cases as the L7 and M68 guns, which is why I think you can probably shorten a NATO 105 mm round to make a suitable one for your Sherman.
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