Old primed cases ... corrosive?

[Cump]

A friend gave me some of his father's old reloading supplies, including 200+ 30-06 cases.

Some of the cases are primed and I'm not sure if I should treat them as corrosive.

The best hint as to age is a label on a box of reloaded 30-06 rounds with a date of 1962. Some of the brass (which I think is WW2 surplus) has "1942" stamped on it, but I think the reloading was done later.

When did non-corrosive primers become standard for consumers?

The brass is all clean and in good shape.

 

[rcmodel]

Civilian, Prior to WWII.
Although Winchester still sold corrosive Match primers as late as the 1950's.
As did the DCM to NRA members.

All Military ammo was non-corrosive by 1955.

What I would do is deprime one, lay the primer on a polished steel plate, and pop it with a hammer.

Then leave it be for a few days and see if the plate rusts.

rc

 

[Cump]

Thanks. I'll give that a try.

 

[1KPerDay]

wear safety glasses and earplugs.