Federal large magnum pistol primers

I recently was given a 1000 Federal match large magnum pistol primers.  Is it safe to use these in a .45?  I will ignore any ...no very dangerous.... send to me and I will dispose of them for you 

I normally load 4.0 bullesye with nosler 185 jhp.  If these can be used, do I need to alter that?  Thanks for the help.... these are the last primers in my house and they are very tempting.

Doc Kokol

The general rule is, cut your powder by 2 to four tenths of a grain.  I had a friend who accidentally used large rifle primers in his 45 loads.  They packed a bit of a whallop.  A chronograph would probably be helpful.  I think I would probably load ten at 3.6 or 3.7 and see how it goes.

4.0 of Bullseye with a jacketed bullet is a bit of a light load already, so on second thought maybe 3.8 would be fine as well.

In .45 ACP loads, I always loaded the Nosler with 4.5 grains of Alliant Bullseye for best accuracy at 50 yards. Winchester large pistol primers are all I ever use and they are for magnum or standard loads. I've read, but can't substantiate, that the only difference in Federal 150 & 155 large pistol primers is the thickness of the cup.

Easy answer; reduce powder charges and do another load work up. I learned/was told many years ago that whenever a component is changed, go back to starting levels and do another load work up. "Reloading 101"...

Thank you.  I appreciate the input.

It's unlikely that you will notice any difference with "fast " powders. Do your due diligence as mentioned above!


"Primer" on primers!

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Lots of information for anyone that uses "primers"!

Smiles,

Dockokol wrote:I recently was given a 1000 Federal match large magnum pistol primers.  Is it safe to use these in a .45?  I will ignore any ...no very dangerous.... send to me and I will dispose of them for you 

I normally load 4.0 bullesye with nosler 185 jhp.  If these can be used, do I need to alter that?  Thanks for the help.... these are the last primers in my house and they are very tempting.

Doc Kokol

Definitely not safe...  I'll send you a tag to put on the box and ship to me for 'safe' disposal using a load equivalent to 4.5 gr bullseye.