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Small Pistol Primers
#1
Sorry, my original post should have gone in the classifieds.

My issue is I cant find Small pistol primers, I do how ever have small pistol magnum primers.

I have been told I can use the magnum primers that I just have to lighten the powder a bit to compinsate. I usually don't deviate from the speer reloading manual, any opinions on this?


Thanks




Peace Until, ItsTime
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#2
I agree with your reluctance to deviate from published load data.
If I were in a similar situation I would be looking for someone to trade with to get the right primers. I've also heard that you can adjust your load to successfully use magnum primers in standard loads but I've never attempted it nor have I ever found what I considered to be good advice or a formula for making such adjustments.
I've used small pistol primers in .22 Hornet and .222 Remington low pressure target loads, I was loading near starting load data for each. That's the only primer substitution I've ever done and I did that on advice from a long time reloader and competition shooter who made the recommendation as a step toward better accuracy. (I did get better accuracy from his suggested loads). It's my understanding that pistol primers are softer cups than rifle primers, leading to a possibility of pierced primers with higher pressure loads. Conversely Rifle primers in pistol loads may cause misfires due to the harder cup material.
Aside from substituting small pistol for small rifle primers as I just mentioned, I advise against making substitutions unless you get a guideline from someone you really trust to know from research and experience of what they speak.
Good luck. I'll be watching this thread for info that I might save for future reference.
There are three types of people in the world:
Those who make things happen,
Those who watch things happen,
And those who wonder what happened.
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#3
Would help if you indicate load you are using. I would not hesitate using mag primers if that's all I had, but would work up loads again.
From a trailer park on a strip cut where my neighbors call me Mister.
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#4
I just happened upon a bit of info published by CCI relating to primer usage and remembered this thread. Here's the link:
http://www.cci-ammunition.com/products/p..._chart.htm

Take note of their comment accompanying every reference to magnum primers:

Quote:† — Safety Note: use Magnum primers only when specified in published load data.

They also make frequent mention of magnum primers being used for heavy loads with ball propellants. (Ball as opposed to flake or stick).
There are three types of people in the world:
Those who make things happen,
Those who watch things happen,
And those who wonder what happened.
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#5
As a side note about that primer chart:
I do not, and nobody else should take that to mean that magnum primers are suitable to use with any loads using ball powder. I think a more accurate take from that would be that magnum primers are a less suitable substitution in loads using flake and stick powders, you're more likely to be able to use them in some circumstances with some ball powders. You should not draw a general conclusion about substitutions other than it shouldn't be done unless you have good information, data, or research to back up the variation, and then do it with caution, as if you're working up a new load altogether, and most casual reloaders aren't at that level, it's for seasoned, experienced reloaders to do cautiously.
There are three types of people in the world:
Those who make things happen,
Those who watch things happen,
And those who wonder what happened.
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#6
mauser's post points to an excellent issue that today seems to slip through the cracks. That is the cavalier attitude to basic reloading safety. On top of that there can be confusion to the new loader caused by what seems to be contradictions in components. An example is the Winchester Lg. pistol primer suitable for standard or magnum loads. I think many switch components with impunity. I have read it many times to drop charges and work up again when switching any component. This includes things like different lots of the same powder or switching brands of primers. Here is what happened to me early on switching brands of standard Lg rifle primers, albeit a hot load, without proper work up. Kept on my bench as a reminder.
[Image: P1010131-1.jpg]
Component shortages may become a fact of life, substitutions cold be an alternative, so it would benefit any reloader to sharpen their skills on working up loads.

Switching photo hosts and lost my pic, basically blown primer.
From a trailer park on a strip cut where my neighbors call me Mister.
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