Italian ammunition use in French 47/50

[Vollketten]

So I'm a little perplexed by some information on the French 47mm anti-tank gun and compatible shells and I was looking for some expert help.

The gun is the French 47mm L/50 Mle 1937 SA37 gun in German service known as 4.7cm Pak 181/182 (f)

http://i.imgur.com/PcPWNXH.jpg

1.9m of rifling in a gun 2.393m long (1.9m of rifling is 40.4 calibres and 2.393m is 50.9 calibres)
Rate of fire quoted as 15-20 rpm

So far I have some prospective information from various sources:

Shells:
- AP shell (may be capped and may be the OBR Mle36 below I don't know - 47 x 380R at 855m/s
- APCR (A German shell about which I have no information)
- Obus de Rupture Mle 36 (APBC) aka PzGr. 178(f) - 47 x 380R, 1.726kg shell at 855m/s
- Obus Explosif Mle 32 M39 (HE) aka PzGr 181 (f) - 1.41kg shell at 590 m/s
- SpGr. Patrone 181 (f)

http://i.imgur.com/q4v0Vid.jpg

Penetration information:
Source 1: Shell not stated but some type of AP
106mm @ 0 deg. @ 100m
89 mm @ 0 def. @ 500m
72 mm @ 0 deg. @ 750m
57 mm @ 0 deg. @1000m

Source 2: Shell not stated but some type of AP
92.5mm @ 0 deg. @ 100m
77 mm @ 0 deg. @ 500m

Source 3: Shell not stated but some type of AP
40 mm @ 0 deg. @ 1000m

I can't find a cross section of the gun and I was also wondering if the gun could take the Italian 47mm shells which are 47x227 R

If someone could summarise some shells and performance and if in theory the 47x227R Italian rounds would fit if would be appreciated thank you.

 

[thekees]

A bit late, but i found a complete round for this gun, will post pictures later, it has a brass case, retaining most of the German ink markings on the side of it (PAK 181(f)). it has a solid steel shell fixed, waffenamt is there. The Pzgr is the type 4,7 cm pzrg ptr 178(f).the top of the shell is treaded but missing the section on top of it (this was a magnesium cap).
My question is, does anyone has such a top fitting. Will post pictures later on.

For all info, the ammo for the gun can be found in manual H.Dv.481/177 on Lexpev's site.
Link to this heaven of info:

http://lexpev.nl/downloads/hdv481177mun.47cmpak181f.pdf