I've used many kilos of snia gm3, mostly in. 45 acp and then in rifles with cast bullets. There is data available but mostly in Italian, its an Italian powder. IT IS NOT THE SAME AS VECTAN GM3!

Loads for. 45 acp were on a par with bullseye. It meters well and is very clean burning.

As others said, if the can is still sealed it should be ok.