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#3240494 - 04/03/20 12:18 AM Pistol primers?
g Bo Offline
Die Hard Member

Registered: 04/20/14
Posts: 596
Loc: Utah
This is a dumb question but Hey, I just don’t know. I bought small pistol primers the other day to load 9mm. I just noticed that half of them are small pistol regular and half are small pistol magnum.
What’s the difference besides price?


Edited by g Bo (04/03/20 12:18 AM)

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#3240495 - 04/03/20 12:30 AM Re: Pistol primers? [Re: g Bo]
Rustydust Offline
PM senior

Registered: 10/21/07
Posts: 6103
Loc: Southwest Idaho
A little hotter spark in the magnum primers for setting off the harder to ignite powders. Over the last 40 odd years I have used mag and non mag primers in my 9mm autos and honestly cannot tell that much difference.

While I would not mix them up I think you will be just fine using them in any modern day 9mm loading.
_________________________
I once asked a liberal "What is it with you people? Is it ignorance or apathy?'
He said, "Well, I don't know and I don't care.'"


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#3240502 - 04/03/20 07:24 AM Re: Pistol primers? [Re: g Bo]
jsh Online
Seasoned Member

Registered: 11/22/03
Posts: 247
Loc: Kansas U.S. of A
Depending on primer some are harder and may have issues igniting. Just had this happen with my SIG practice ammo. Even then I have some Tula small pistol and those things are as hard as a rifle primer, about 60% fire rate without a double tap and even then there is hardly a mark on them. Definitely nothing I would use for situations.

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#3240523 - 04/03/20 12:10 PM Re: Pistol primers? [Re: g Bo]
masshunter Offline
Die Hard Member II

Registered: 12/10/08
Posts: 1135
Loc: western mass
This is interesting. I have a thousand cci sp mag primers I've seldom used because I mostly load moderate loads with Unique. Should I use them ?

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#3240526 - 04/03/20 12:22 PM Re: Pistol primers? [Re: masshunter]
Rustydust Offline
PM senior

Registered: 10/21/07
Posts: 6103
Loc: Southwest Idaho
Originally Posted By: masshunter
This is interesting. I have a thousand cci sp mag primers I've seldom used because I mostly load moderate loads with Unique. Should I use them ?


Well, I would. You likely will never tell a difference.

Quite a few years ago when I got my first chronograph I shot a few various .357 mag and .44 mag load using standard and magnum primers and the speeds were just a tiny difference. Like 20-40 fps.
_________________________
I once asked a liberal "What is it with you people? Is it ignorance or apathy?'
He said, "Well, I don't know and I don't care.'"


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#3240584 - 04/04/20 12:46 AM Re: Pistol primers? [Re: Rustydust]
g Bo Offline
Die Hard Member

Registered: 04/20/14
Posts: 596
Loc: Utah
Thank you for your feedback. I will try and exchange them for regular primers.. I assume they will but we’ll see?

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#3241052 - 04/08/20 09:53 AM Re: Pistol primers? [Re: g Bo]
Bouncer Offline
Seasoned Member

Registered: 08/12/09
Posts: 127
Loc: WY
Most places won't take primers back so you're probably going to have to keep them. You can use your normal loads with the mags and expect maybe 30-40 fps gains with no appreciable rise in pressure. I've also done some experimenting with small rifle primers in my 9mm's and have had the same results...30-40 fps and all went bang every time I pulled the trigger.

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#3241336 - 04/10/20 10:11 PM Re: Pistol primers? [Re: g Bo]
Riflemann Offline
Die Hard Member III

Registered: 12/29/02
Posts: 2177
Loc: WC Minnesota
9mm, small pistol
357, small pistol magnum
I always go by the book on primers. Save the magnum primers incase you start reloading for that.
_________________________
Riflemann----"Hunt With Your Kids, And Grand Kids, Not For Them"

"Gun Control Means Using 2 Hands"






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#3241393 - 04/11/20 03:35 PM Re: Pistol primers? [Re: g Bo]
DannoBoone Offline
Die Hard Member

Registered: 03/08/10
Posts: 885
Loc: Walker, IA
Originally Posted By: g Bo
Thank you for your feedback. I will try and exchange them for regular primers.. I assume they will but we’ll see?


If they will not....I agree with Rusty. Just don't load them
anywhere near max.

After recently getting a 9mm, I could find only ONE box of
regular small pistol primers, but had a whole carton of Rem
6 1/2 primers and tried them using Power Pistol. There were no
FTF's and no indications of over pressure.
_________________________
The trouble with atheism is having no one to talk to when you are alone.

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