2400 Mag Primer ?

[Luke Duke]

In these times of reloading components in such short supply. I find myself with 8#'s of 2400 and 4 thousand Large Magnum Pistol Primers. I realize that Alliant says Mag Primers are not necessary, but I'm going to have to use them if I want to shoot my 41 and 44 Mag.
Cant imagine having problems if I start low and work up a load.

 

[rockquarry]

Standard primers are usually recommended with #2400 but I've seen slightly better accuracy in some instances with magnum primers, but this can and will vary considerably with all the changeable factors. You're right, start low and work up.

 

[Narragansett]

When I reloaded, and I am saying this from memory, I used nothing but CCI mag primers, and nothing but 2400 powder. 21-23 grains. Like I said this is just a memory thing. Not to be used!!!!!. I am sure of the primers, but not the grains of 2400.Actually I found a full box of reloads the other day.

I like 2400 powder, but to me it was a safety thing. You can't double charge a case without it spilling all over.

 

[Luke Duke]

I keep good track of my supplies. Guess Ive been shooting up more Standard Large Pistol primers than I thought. Unfortunately I find myself with way more powder than primers! Hopefully just enough to get threw our currant administration
Or start shooting my rifles alot more , got plenty of Large and Small rifle primers

 

[alwslate]

Use your mag primers without fear. Mag primers have been used with 2400 for many years with no problems until recently Speer said to use standard primers with 2400 in the .357 magnum. I have chronographed loads with mag and std primers in the .357 for comparison and I will never use std primers with 2400 again. You don't have to start low and work up with your .41 and .44 magnum loads. Just use the old published data that has been in use for many years and don't worry.

 

[Maurice H]

Cant imagine having problems if I start low and work up a load.

Exactly...wouldn't give it a second thought. Sierra calls for a mag primer with 2400 while most do not but that wouldn't faze me.

 

[DWalt]

I doubt you will detect any performance differences between Standard and Magnum LP primers in your reloads.

 

[Erocksmash]

Save the mag primers for the h110, standard PP will set 2400 just fine

 

[dave1918a2]

Like You I have thousands of LP Mag primers. Why? Because I have used Magnum primers with 2400, H110, H4227 for decades without a problem. My 44 load is 20.5 Gr 2400, 23 Gr H110, or 18 Gr H4227. All mag primed.

 

[Neversink n Klapperthal]

fifty years ago my standard 44 load was the Magnum primer with 21/2400 with the 250 grain swc

 

[twodog max]

Not necessary IMO and Alliants but perfectly acceptable. I have done so myself many times in the past

 

[alwslate]

Save the mag primers for the h110, standard PP will set 2400 just fine

Yep, std PP will actually ignite 2400. They will also give you low velocities and large extreme spreads compared to mag primers. The first time that I loaded some .357s with 2400 after seeing Speer's recommendations I used Winchester std primers. The velocities were so much lower than what I was used to seeing that I thought there was something wrong with my chronograph. A little experimentation showed me what was wrong. Std primers with 2400!

 

[LostintheOzone]

Save the mag primers for the h110, standard PP will set 2400 just fine

That's what I would do.

Mag primers are usually recommended for ball powder. 2400 isn't ball powder so no need to waste those on 2400 unless that's all you have.

 

[ruggyh]

... Unfortunately I find myself with way more powder than primers! ...

Start reloading 460 or 500 S&W and it will fix that problem.

 

[just plain joe]

You are wise to work up the load, starting low. Speaking for myself, whenever I load 2400, I utilize magnum primers. It is a slow burning powder and the magnum primers help it ignite and burn more consistently (my experience).

I found that when shooting .357 Magnum reloads, there is less unburned powder beneath the extractor star and a little less flash from the unburned powder at the muzzle with magnum primers. Different caliber I understand, but your results may be similar.

HTH.

JPJ

 

[Luke Duke]

Mag Primers

On a side not; Ive found with my lot of Unique and my load of 10.0 grains and a 250 Keith, Magnum primers burn it much cleaner and accuracy is way better.
Also , I have 2000 Remington 6 1/2 . My understanding is that these are similar to a Mag Small pistol Primer. That their not a very hot SRP?

 

[DGNY]

I also believe that (a) magnum primers raise pressures; (b) providers of reloading information wanted users to be aware of that.

Hence, they recommended magnum primers, in order that their loads not be over-pressure when some reloaders used mag primers instead of standard. Simply a matter of safety and, yes, in occasional instances, better combustion of the 2400.

I personally never used mag primers and had very good combustion, with good looking primers, easy extraction and fine accuracy.

 

[AJ]

Use what you have, just start low and work up slowly.

 

[Luke Duke]

Use what you have, just start low and work up slowly.

Familiar with Remington 6 1/2 primers?

 

[AJ]

Familiar with Remington 6 1/2 primers?

Never used the Remington 6 1/2 primers. Have mostly used CCI Small and Large Pistol Primers.