303 from the 40's

[green]

DI was run by CIL and used the Dominion noncorrosive primer. Dominion Arsenal (DA hs) used corrosive primers until the early 50s.

[Garand]

Using the American Rifleman, "Beginners Digest: Nonmecuric, Non Corrosive Primers" Pg 34-36, January 1961 as a reference, caliber .30-06 , starting at Lot 44000 (Date of Mfg August 1945) manufactured by Dominion Arsenals, Canada was the start of all manufacture of ammunition using non corrosive ammunition by DAQ.

[Claven2]

Personally, I'd play it safe - not sorry. And that ISAA stuff is probably corrosive. Never saw 50's Indian ammo that wasn't.

[Claven2]

OK, when all else fails, go look at my reference material. ISAA = "Inspector, Small Arms, Ammunition"

The ink stamp below it "GB 15-4-55" should mean "Greenwood and Batley, Leeds, UK, manufactured April 15, 1955"

Maker's headstamp should be G, GB or GBF along with the Mk of ammo and 55 for the year... assuming of course the box has its original ammo in it.

Not sure if corrosive or not, but best to play it safe. In any event, it's not Indian packaging as I first thought - it's British.

[Brewster]

Using the American Rifleman, "Beginners Digest: Nonmecuric, Non Corrosive Primers" Pg 34-36, January 1961 as a reference, caliber .30-06 , starting at Lot 44000 (Date of Mfg August 1945) manufactured by Dominion Arsenals, Canada was the start of all manufacture of ammunition using non corrosive ammunition by DAQ.

But we are talking 303 here not 30:06...

And hey, I got two of those rounds dated 1944. Been saving mine so I can make dummy rounds out of them.

Cheers

Brewster

[Garand]

Point taken, but consider the fact that both rounds use the same primers. No manufacturer in there right mind, especially one controlled by a government that also produces rifles in that caliber will go to length of using 2 primers of different compositions.

[Max Power]

most of the DI stuff is dam good stuff. most of the stuff i have shot is not corrosive, from the 40s. also, most of it has the small primer, and IS reloadable boxer