9 MM Minor Loads - Rifle or Magnum Pistol Primers

[Joseph796]

I am out of small pistol primers for 9 mm minor loads. I have small rifle primers and could buy small magnum pistol primers. My question is, in a pinch, what would be more suitable for minor loads, rifle or magnum pistol primers?

[anachronism]

If these are your only options, I'd use SPM over rifle primers. I'd be hoping the primer cups themselves would be a bit softer than rifle primers. Either way, you'll have to redo your load development of course.

[Steve RA]

I use SRPs in 9mm, but in 1911s. In striker fired weapons you might not get 100% ignition if the springs are lighter than stock.

[Joseph796]

Thank you for the replies.

[Pasley]

I have used CCI, Remington and Winchester small rifle primers in my stock Glock and have had zero failures. I can't tell any difference, in any way, in how they shoot compared to pistol primers.

[RammerJammer]

I have used a couple thousand small pistol magnum primers. There was very little difference in chrono and I couldn't tell any difference in feel.

[RH45]

I'll use anything for major loads, but, for minor loads, I stick with small pistol primers. I've seen too many slides with breechface cutting from primer leakage.

If you do a search, you should get a ton of hits.

[RammerJammer]

I have used a couple thousand small pistol magnum primers. There was very little difference in chrono and I couldn't tell any difference in feel.

ETA: In 40. I should pay closer attention.

[RussellJohnson]

The small magnum pistol primers will only increase your speed 10-30 feet. I Just drop my powder a tenth of a grain when I use magnum primers. I have not tested rifle primers and from what I read from people that have used and tested rifle primers for pistol use, I would only do it when all other options failed. I have read that people do use rifle primers for major loads and in steel guns with no problems.