[Iris7]

The six pounder was a high velocity gun, fired only AP shot as I recall. Superior penetrator to the M4 75 mm. I think, except when the 75 mm was fitted with the Littlejohn adapter and it's special ammunition. APDS would have worked, don't know if APDS was actually issued before the surrender.

[SAMWolf]

During most of the early part of the war, British tanks suffered from not having access to an HE round. The 2 pdr and then 6 pdr weapons didn't have one until around 1943/44. This lead to some interesting solutions to the problem (like the early Churchill tanks having a 3" howitzer as well as their 2 pdr weapons), until the British introduced their HE rounds. This was also one of the main reasons for the introduction of the British 75mm gun - the British were happy with the 6 pdr as a main weapon (it was generally more accurate and more powerful than the 75mm gun), but it couldn't fire HE.

Weapon Type	Ammunition	Date Entered
2 Pounder	AP	35
	HE	43
6 Pounder	AP	40
	APDS	44
	HE	44
75mm L38	AP	40
	HE	43

British 75mm:
The British 75mm was developed mainly as a stop gap until HE ammo could be introduced for th 6 pounder gun. In performance though, it was virtually identical to the American 75mm M3 gun, from which it was copied. As such, while the above values are for consistancy with Mein Panzer, I find it acceptable to up the AP value to 10 to keep it in line. It can also fire all American ammunition (cheifly the HE round, but also the others). Interestingly enough, while the British and American 75mm were good guns, their armour penetration was actually slightly less than the 6 pounder weapon...

British and American Tanks of World War Two
Cassell & Co, 2000, although previously published by Arms and Armour, 1969

Churchill Infantry Tank, 1941-1951
Osprey Publising Limited, 1993