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Why are large pistol primers out of stock?

Primers are used in the production of new ammunition, and manufacturers have redirected primers that would have gone to reloading sales to new ammunition production, decreasing the availability of primers as components. The ammo shortage has also stimulated interest in reloading, putting additional strain on the now-dwindling supply.

What's the difference between large pistol primers and large magnum pistol primers?

Because magnum primers fire faster and for a longer period of time than regular primers, they can produce maximum loads that are hazardous to the barrel and the shooter. They can generate a dangerous pressure buildup by igniting powders too quickly.

Can you substitute large rifle primers for large pistol primers?

To summarize, never, ever swap LPP for LRP. This is where math and physics might cause problems.

The primer pockets of Small Pistol Primers (SPP) and Small Rifle Primers (SRP) cases are nearly equal in size. This does not imply that they can be interchanged.

Can I use large pistol primers in 9mm?

To summarize, never, ever swap LPP for LRP. This is where math and physics might cause problems. The primer pockets of Small Pistol Primers (SPP) and Small Rifle Primers (SRP) cases are nearly equal in size. This does not imply that they can be interchanged.