.303 interesting headstamp

[atr]

277065

from a box of old .303 British ammunition made by Winchester

[cwtebay]

Definitely interesting, I have a "grail" 2 piece of Winchester with an 1895 call out on the box. I wasn't aware there would be a headstamp that late. Thank you for sharing!

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[relics6165]

It's been awhile, but I believe this headstamp was for a Winchester contract WW2 loading for the Brits. I believe they were dated from 1941 to 1943, and labeled Not For Bren Gun because of the different burning characteristics of USA used nitrocellulose vs. British used cordite.

[MOC031]

277065

from a box of old .303 British ammunition made by Winchester

Staked primer pocket suggests military ammo versus civilian

Winchester Repeating Arms Co., New Haven, Conn., USA. Known to have made nitro-cellulose loaded .303 cartridges for 1914 - 1917 military contracts as... B, and Mk 7. During WW2... B, Mk 7Z (Contract Pattern),Scott multiball (duplex) and 180 gr jacketed soft point sporting Ammunition.

https://sites.google.com/site/britmilammo/headstamp-codes/united-states

https://classicglasspars.com/303/303.htm

http://dave-cushman.net/shot/303headstamps.html

[atr]

yes it was military...FMJ

[richbug]

It's been awhile, but I believe this headstamp was for a Winchester contract WW2 loading for the Brits. I believe they were dated from 1941 to 1943, and labeled Not For Bren Gun because of the different burning characteristics of USA used nitrocellulose vs. British used cordite.


There were 2 different labels. The Black ink labels were printed "Not for synchronized guns"

The Red label stuff was labeled for aircraft use(synchronized guns).

Both were loaded with ball powder. Both worked fine in a Bren gun.

[Outpost75]

Good ammo. I have a substantial quantity of it. Mine is loaded with Ball powder. NOT Cordite or extruded nitrocellulose. Is boxer primed, but corrosive. Brass is good. Accuracy is very MUCH better than average WW2 Brit stuff. Bullet diameter is .3125-.313"

277484277485277486277487277488

[nicholst55]

I have encountered some wartime British ammo loaded with undersized bullets. I can vouch that the accuracy that it provides is pretty dismal! IIRC, the bullets miked around .306".

[yovinny]

The Brit Mk7 fmj has an concave exposed lead flat base,, so to bump up and help seal those generous bore and grove diameters... and a light weight tip filler,, so to upset and tumble apon soft tissue contact.
You cant buy a comparable fmj bullet for any price from any manufacturer today....