Primers?

[justin]

Does anyone know what these are?

They look like primers, but I really have no idea (shown next to a .303 case for comparison).


Dimensions are:
Head - 11mm
Neck - 6mm
Length - 31mm

No markings on the head.
Any thoughts appreciated.

 

[ron3350]

justin.
I asked a similar question in packaging and containers Page 2 about tins for percussion caps. ( 5 June 2018.) Refer to this reply.
Your item is a snout for the Mk111 igniter.

 

[ron3350]

The photo from my query.

 

[justin]

Perfect, many thanks for that. I would never have worked it out for myself!