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Found some loose primers


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First let me say that I reload 40,45, for pistols, 30 carbine, and 223/556 for rifle. Doing some cleaning and sorting around the bench, I found some small primers of various makes, not knowing which is which, and I use the full spectrum of primers, will it be safe to just use for plinking pistol rounds, or safely dispose of them? The list of small primers I have available and use cci 41 rem 7.5, 6.5 , cci 400, wsr,wsp. Considering the tough times of today I hate to toss them but I haven't had any incidents as of yet and not wanting to!

ETA there was a total number of 16, and a mixture of finishes.

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You can def use them all in pistol rounds but some of the rifle primer cups (esp cci41) will be a bit harder and might not ignite with lighter primer strikes. Main difference between sp and sr is thickness of primer cup. Sr typically have thicker cups and "milspec" like the 41 has an even thicker cup to better handle higher pressures and prevent slamfires. So generally its ok to use sr in pistols but NOT sp in rifles. Some open shooters use sr primers exclusively in their open pistols.

This doesn't work with large primers as the rifle cups/primer pockets are deeper, so lr primers will not seat flush in a pistol pocket...

Edited by wgj3
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Since this is not .40 S&W specific, shouldn't it be in the general reloading section?

I have never even noticed any pressure differences between small standard and small magnum, though I have seen accuracy drop quite a bit with magnum primers.

How did you get a jar of mixed primers? This is unsafe storage.

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  • 2 weeks later...

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