Western #7 primers

[riceman]

A friend of mine gave me a bunch of Western #7 primers made by Western cartridge company, non-mecuric, non corrosive for smokeless powder.
This is a division of Olin Industries.
I have searched then internet and can find history but no specific info.
These seemed to be domed primers ( very small dome.)
They also look like SRPers.
Can any tell me if I can use these for plinking loads.
Or what to do with them.

Thanks in Advance

[edgerly779]

Load a few and try out.

[mark501w]

winchester large pistol.

[riceman]

Thanks mark501w, as you can tell I am very new to this.
Thanks again.

[mark501w]

my pleasure.