Help I.D. 15.3mm round

[cjharpy]

Hey Guys,

Need a little help again...

The round has no head stamp or markings, but the dimensions are as follows:

Projectile:
Diameter-15.3mm
Length-81mm (tip is broken it seems)

Case:
Internal Neck-15.33mm
External body-23.63mm
Length 119.76mm

Overall with projectile seated at cannelure:
Length-171.27mm

 

[SG500]

I'm no expert on the smaller stuff but it looks like a 15 x 120 spotter round.
There's a few for sale on Specialist Auctions at the moment.
The wide groove is a bit of a giveaway.
Dave.

http://www.specialistauctions.com/auctiondetails.php?id=1533408

 

[Chris 42 RQ]

Very well "spotted" Dave !

 

[cjharpy]

thanks guys!