Name the caliber.

[Tactical]

An ataboy to the first person to correctly size the brass.

 

[cratz2]

The big brass or the small brass?

20mm or .45" ???

 

[Tactical]

The big brass or the small brass?

Both

 

[Slimjim]

Small one = 9mm
big ones = grenade launcher? 57mm?

 

[Jason Demond]

105MM flare case?

 

[Mal H]

Big ones are around 30mm in diam.

 

[SDC]

My SWAG is 30mm Apache chaingun for the large ones, and a 9mm Makarov for the small one.

 

[riverdog]

So what does an AH-64 carry; 30 MM? Those would be the larger ones. The small one almost looks like a .22 short in comparison.

 

[Andrew Wyatt]

30mm Aiden gun.

 

[Tactical]

Ataboy SDC