Are Small Pistol Magnum & Small Rifle Primers Safe in 9mm?

[The Pontificator]

Watch and see!

 

[nortac]

Good to know. I've got a lot of small magnum pistol primers on hand.

 

[nikonNUT]

Great video!!! That's what I have learned from lots of reading. Cup hardness is where the problems can arise.

 

[The Pontificator]

Had I known this years ago when the only primers available were small magnum pistol I'd have bought them anyway. Some gun counter a-hole told me that you would have to lower your powder charge by a grain to make up for the "pressure"...and I believed him. Ack.

 

[nortac]

Some gun counter a-hole told me that you would have to lower your powder charge by a grain to make up for the "pressure"...and I believed him. Ack.

Prior to reading the above, I was told and under the impression that the safe procedure was to lower the powder charge by a half grain and work your way up watching for pressure signs.