why was 75mm the standerd shell for ww2 also what was the diffrence

There's a chink in your armor.

>I couldn't stop myself

>>28427476

1mm.

About 1mm

>>28427503
>I hope Galahad-senpai notices me!

>>28427503
ESPN pls.

Came out of the end of WWI. 75mm guns were found to be relatively small, yet able to make things ded. As tanks became popular, it was found they could be really good at punching through armor, without being too fuckhuge to move around. 76mm was just a slightly different size that the ruskies really liked, until it almost all of it on the eastern front got captured by the germans during opening weeks of barbarosa.

>>28427476
I hope this is a bait thread

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>>28427505
>>28427507
so why make a whole new gun and line up of tanks for 1mm?
why not just make 80mm shells?

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>>28427548

>>28427558

Because the diameter was 1mm different but the performance of the rounds were much different. A Sherman with the standard 75 mm was relatively undergunned, but with the refit to the end war 76 mm made it on par or superior to the other tanks fielded.

A .22 LR and a 5.56 NATO are essentially the same diameter bullet, but the cartridges and the performance of each are vastly different. The 76 mm gun had a much faster moving projectile.

>>28427476
I'm guessing you're talking about the difference between the American 75mm and 76mm guns.

Both were really the same caliber but the Ordinance Department designated the 76mm as such to prevent higher-pressure 76mm shells being given to Shermans thst still had the lower-velocity guns. Other than that, the 76mm had a higher velocity and as such, a thicker she'll casing and a larger she'll cartridge.

>>28427594
https://www.youtube.com/watch?v=bNjp_4jY8pY

Watch this whole thing and stop being stupid.

THERES THAT CHINK IN MY ARMOR.

Thanks for finding it OP

>>28427599
cheers mate that was really helpful

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>>28427476

>>28427558

The way I was told why those were the sizes was because of pre-existing shells just being multiples of those diamaters. 76mm is 3 inches, 152mm is 6 inches, and so forth. This doesn't seem to hold true across the board though.

>>28427594
>>28427599
Don't try and educate him, it makes spergs harder to spot.

Well it's a number of reasons, op. Also, standard shell for WHAT? It's kinda misleading, I guess you mean "the average tank/field gun in WW2 was a 75mm or close to that"

Mostly it had to do with previously standardized WWI calibres being the starting test bench for ever more powerful loads, once you build a turret around a 75mm sized gun, working with other calibers can be hard. About field guns, it was a matter of having a gun with a carriage that could be moved without being a logistical nightmare.

The germans, for example, had many short howitzers in 75mm, so they had many gun carriages and AFV designs built around guns of that size. When WW2 showed that AT guns needed to be much more powerful (at the time the germans were fielding 30 or 50mm guns in the AT role), the first thing they did was taking the 75 design and reworking it so it would be a long barreled high pressure gun, then it was easy to adapt carriages and turrets to that gun.
Similar ideas were tried with 105mm guns, another "standard caliber" of the time, but field carriages for such a gun were too heavy and big, while no turrets could house such a large gun reliably. Many nations tried at the same time to adapt ever bigger guns, but in the end the "next class" of high pressure AT guns ended up being 85mm (russians)/88mm (germans)/90mm (allies) all mostly based on pre-existing AA guns.

>>28427607
That was kool

>>28427623
>>28427503
Race traitors fuck off.
>inb4 how a buncha yellow fever faggots talk about fixing the armor by filling the chink.

>>28427476
If I remember right, the 76mm was actually a bit longer. They just increased the size so the troops wouldn't mix them up.

>>28430093
>traitor
Club spinning stormtrooper pls go

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>>28430093
Nigga, calm down it's just a joke. A joke looks like this pic.

>>28430093
>tfw no chink to fill
最悪

>>28427503
>https://www.youtube.com/watch?v=1ytCEuuW2_A