Small pistol primers question.

[freewayrandy]

Just how big a difference is there between standard and magnum primers? If, say, one could only find magnum, could they be used instead of standard? In the case of .40 S&W.

[sghart]

yes

[BajaJames83]

Yes they can be interchanged.

[Rwnielsen]

CCI small rifle and CCI small pistol magnum are actually the same primer. I have some SR primers that I got on a trade that I use in my .357.

[edgerly779]

I have cci primers that say small rifle or small pistol magnum on box

[Tommy Gun]

In most cases you can downgrade, not upgrade.

[robert101]

I've not seen a difference in performance between the two. I will quantify this response by stating that I don't shoot maximum top loaded rounds often, I don't have testing equipment to confirm this practice, and I'm not a target or precision shooter. Just your average joe reloader shooting mid-range loads for practicing shooting and firearm management skills.

[bohoki]

i love s&b they just say f-it

[ysr_racer]

Parts is parts

[tawadc95]

Never seen a difference.
I use smal rifle for 9mm also with no adverse effect and no difference in chrono readings.
I am wondering what small rifle magnum is like.

[tabascoz28]

I've always used reg small primers for my 357 loads. Granted I'm not making fireball loads but I've never seen pressure issues on the primers.

[Divernhunter]

I use the mag primers in all my loads and have never had a problem ---from mild to max

[uechikid]

If you can find them, buy them. They’ll work just fine.

[sigstroker]

The biggest problem you might have with rifle primers in a pistol is the harder primer cup. Some guns might have trouble with ignition.

[Supertac916]