75mm A.P.C.B.C.H.E. 'AP-Composite' ammunition for the British - Ingenuity in the Desert

Wait, how did you get 74mm pen? I got 95.32mm with the M2 (588m/s), and 102.35mm (618m/s) with the M3 gun. I’ll take any of those over solid AP.

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You’ll have to send me the calculator you’re using.

Evidently the Gaijin Wiki one is broken, cannot get it to respond to explosive mass correctly, which seems to be the issue here.

Did you tick the “APCBC” box?

Cause if the shot is indeed fired at 588 m/s, it should have at leaat 92 mm pen point blank

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I’m using the wiki one. I’ve done some testing and I think I’ve found the problem. I believe you’ve entered the explosive mass as 0.8 kg, am I right? That way I too got 74mm pen. It should be 0.08 kg.

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If the Grant didn’t already get US APCBC then this would be super cool, but as others have said it is outclassed. Nevertheless I’d like to have it for historical accuracy and maybe have it given to other UK 75mm tanks. +1

+1 of course.

Though to be honest the only bad effect of this is it would probably make to Churchill VII go to 5.0

Everyday we get closer to APHEFSDSHEATHECBC
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Where’s the HESH?

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The penetration is of negligible difference compared to the current 75mm M61 (as calculated above using the correct parametres for the equation, and confirmed by the firing trials below), while containing a decent few grams more explosive filler. It’s a sidegrade at worst, and a marginal upgrade if you prefer a notable bump in post-pen performance for only 1-2mm of lost penetration. Definitely not outclassed.

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Ah, fair enough. Would be a nice change-up if it replaced M61 outright.

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Do you mean 🅱️ESH?

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We want a round that works not leaving 18 dents from the previous shells that did nothing on the roof of Tigers while Gaijin is showing it off

I think this would be a fun way to distinguish the British Sherman, Churchill NA 75 and (hopefully) the Grant Mk.II while also potentially spicing up the OQF 75mm.

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Say like modification for the Grant and all of the later, higher BR OQF 75mm guns :)

Nice suggestion, fun fact. Germany did the same, kind of.

With the invasion of Poland, many french 7,5 cm 1897 guns fell into german hands. Which is also the basis for the US gun. And germany produced own ammo for the 1897 guns, they produced own 350mm casings and gave them the K.Gr. Pz (p), which is an adapted K.Gr. Pz for the Polish / French guns with an already reworked driving band.

Spoiler

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I agree for the most part, but the NA 75 and most QF 75 armed tanks entered service a bit late for them to likely have used these stopgap rounds.
Not like this is the kind of logic that has stopped Gajin before, but I think it would be more fitting to just give the later tanks the proper M61A1 APHE we know they had. Regardless, these composite rounds still have a place for sure in-game on the Grant, and possibly the Sherman II.

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Did germany use any vehicles with the m1897 gun? The K.gr. Pz (p) would be a cool way to add some german flavor to a vehicle with the captured gun.

Yes, Ghosti has a suggestion for one here.

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Well the above mentioned converted T-26, but also a Universal carrier.

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I wish I could upvote this more than once.

British QF 75s need both M61 APHE and this round.

And while we’re at it, let’s give all 6-pounders M86 APHE too. After all, Britain operated all but one of the T18E2 Boarhounds produced in the North Africa campaign. Simultaneously, American 57mm gun regiments used British 6-pdr APDS at Bulge, implying that the American rounds are cross-compatible with the British gun just as much as the reverse was true. This aligns with Wikipedia saying the US 57mm M1 and the British 6-pounder are the same damn gun.

Has anyone found concrete evidence of British 6-pounder cannons ever using US M86? The best I could find was an old report stating more than a million M86 rounds were shipped to British forces as a part of Lend-Lease.