I have what appears to be a 40mm/1.5inch shell casing.
It’s a bottlenecked centrefire and has a live primer but no projectile or charge.
It’s dimensions are:
Neck Dia : Approximately 1.5" Inside (Out of round)
Length : 4.700"
Base Dia : 1.640"
Rim Dia : 1.895"
Shoulder Dia : 1.58" at 3.70" from rim.
Headstamp: Manufactured by Winchester Repeating Arms Co. New Haven Conn. USA
B in a circle with flames or leaves out the top.
Anyone know what it is/was? Was this a grenade or a shell?