Ok, I'm going to try and post this, but I'm not certain if I'll get it right.
Now, the image I have did not have the names of the different types of ammo embeded in it, so I'm working from memory here. If you have the original, or can more accurately identify the ammo, please pipe up.
The ones I'm 99% certain on are the 20mms. there is a Japanese or german one, then there is the Hizzooka.
This is what I believe is the correct (left to right) order of the ammo in the picture.
30 cal,
303 cal,
50 cal, (12.7 and 50 may be reversed)
12.7mm,
13mm,
^^^ Machine gun
VVVV Cannon
15mm,
20 mm (ho 90/German of some type),
20 mm (Hizooka),
23mm?,
27mm?
30mm, (German)
37mm? (from P-39's cannon I think)