Anyone recognize this cartridge?

[deerfarmer]

Found a handful of them in the snow when I was out shooting and they looked interesting. Brought them back home and scanned through my Hornady reloading manual to find a match but no luck. Rimmed cartridge of some kind obviously and seems to be 30cal by the measurements. What it is?

 

[tiriaq]

.303 British. Made by Dominion Arsenal. Mark VII - 174gr flat based spitzer bullet, cordite propellant. 1/4" diameter Berdan primer. There should be a date, although I cannot read the marks on the case head in the photo.

 

[dfraser]

303 British, from dominion Canada

 

[deerfarmer]

303 British, from dominion Canada

I was thinking the same but I also found a spent 303 British round with correct headstamp and the dimensions were quite different. This one had a shorter neck in comparison

 

[tiriaq]

Fired in a different rifle?

 

[Snider shooter]

Military cases are marked with codes instead of the common name. 303 British

 

[RangeRover]

Looks like 1944 “44” production and also looks very much like the .303 brass that come out of a Mk II Ross Rifle (ask me how I know). Others with Mk II Ross rifles also experience high, rounded shoulders in their fired brass.

 

[woodchopper]

Looks like 1944 “44” production and also looks very much like the .303 brass that come out of a Mk II Ross Rifle (ask me how I know). Others with Mk II Ross rifles also experience high, rounded shoulders in their fired brass.

agreed

My 1905 Ross is hard on brass, the chamber is long and badly eroded

 

[Snider shooter]

My Martini has a large chamber. It blows the front out big time and is known for showing cracks in case shoulders. I dedicated 50 cases to that rifle that get neck sized only. I can chamber fired cases from every 303 I own in it, over 20.

 

[Eagleye]

303 British. Dominion manufactured in Canada. The chambers vary so much in the LE milsurps & even
the P14s that you can easily see the difference on fired cases where more than one rifle has been used.
I have a 1910 Ross rifle that I had rebarrelled. Its chamber is quite tight compared to any milsurp 303
I have seen. [also has a .311 groove diameter.] Dave.

 

[deerfarmer]

Well 303 British it is! Thanks for all the education folks

 

[kevin g]

Gun NutZ does it again !!
The wealth of knowledge on here, that have been solving all kinds of issues and stuff like this, over the years is absolutely nothing short of amazing !! Well done CGN Gurus !!!