Small pistol mag primers

[SB]

During the last primer scare I participated in I picked up 6K small pistol mag primers.

So now I just need to figure out what to use then in.

So what do you think? Just work up a lower load?

Currently load for 38, 357, 9mm, 40, and 45 in pistol
223, 243, 308, and 30-06 rifle
About to start 300BO

[mapper]

This may be worth a read.
It applies to cci primers though, and others may be diffrent.
https://forum.capitalcitygunforum.com/threads/9762-cci-sp-spm-sr-specs-or-interchangeability

Also this may be worthwhile
https://forum.capitalcitygunforum.com/threads/4825-good-article-on-diffrences-between-primers

Found this as well.
https://forums.1911forum.com/showthread.php?t=365851

I haven't done it, so I don't have first hand info.
but since you are changing components, drop a little and work back up to be certain.