I am stuck with 1000 pieces of large pistol magnums can they be substituted for regular primers?

How much were they selling the brick for?

How much were they selling the brick for?

$30

It doesn't make much, if any, difference.
If you're really paranoid, I'll trade you some regular for your magnums.
But it's not even worth the time and gas to do the swap.

I don't reload, but I've read that when using Magnum primers in place of regular, you should reduce the powder by 10%.

You should then measure the velocities between the standard and magnum primers and adjust the magnum-primed load until the two are about the same.

I don't reload, but I've read that when using Magnum primers in place of regular, you should reduce the powder by 10%.

You should then measure the velocities between the standard and magnum primers and adjust the magnum-primed load until the two are about the same.

That makes sense. I don’t have a chronograph though. Guess I gotta buy one haha.

It doesn't make much, if any, difference.
If you're really paranoid, I'll trade you some regular for your magnums.
But it's not even worth the time and gas to do the swap.

I trust your judgement. I been looking online and it seems to be pretty unanimous that it’s not much of a difference. Thank you for the offer.

A side note....
In the past, I've had more difficulty seating cci primers than with other brands.
Whatever method you use, inspect the primers after seating to see that they are flush, or a little under.
What kind of brass did you obtain and what is your recipe? Also tell me what kind of pistol and  barrel length.

I have some experience in 45 acp. 

I have done some testing before with LPM primers for 45 ACP.  I chronoed  loads using  LPM primers and its about a  75 FPS average increase from using  LP primers. So reduce your powder a little to reflect that.

A side note....
In the past, I've had more difficulty seating cci primers than with other brands.
Whatever method you use, inspect the primers after seating to see that they are flush, or a little under.
What kind of brass did you obtain and what is your recipe? Also tell me what kind of pistol and  barrel length.

I have some experience in 45 acp. 

I’m reloading some blazer brass from a case I bought, I also have some brand new Remington cases. I have about 500 pieces of range pick ups as well. This will be my first time reloading 45acp and right now so far I have 3 test loads I’m waiting to try. I’m using CFE Pistol, 6.0gr, 6.5gr, and 7.0gr with 230gr TMJ Speer bullets. Shooting out of a Glock 21 barrel is 4.61”.

I have done some testing before with LPM primers for 45 ACP.  I chronoed  loads using  LPM primers and its about a  75 FPS average increase from using  LP primers. So reduce your powder a little to reflect that.

Wow that seems Like a pretty significant increase from just primers. Everything else was the same?

Wow that seems Like a pretty significant increase from just primers. Everything else was the same?

230 gr (15 g) FMJ, Winchester................835 ft/s  (255 m/s)

So, 835 ft/s x .10 = 83.5 ft/s.  If you reduce your powder by 10%, you should expect to see a relatively similar drop in velocity.  Once you're close, gradually work your way UP to the normal velocity.   

75 ft/s is about 9% of 835 ft/s (.08982).  A 10% reduction in load should keep you within a safe below-normal-velocity range that you can work with.

Basically, a 75 ft/s difference between normal and magnum primers is well within the expected results, based on what I read.

For whatever that's worth.   

So, 835 ft/s x .10 = 83.5 ft/s.  If you reduce your powder by 10%, you should expect to see a relatively similar drop in velocity.  Once you're close, gradually work your way UP to the normal velocity.   

75 ft/s is about 9% of 835 ft/s (.08982).  A 10% reduction in load should keep you within a safe below-normal-velocity range that you can work with.

Basically, a 75 ft/s difference between normal and magnum primers is well within the expected results, based on what I read.

For whatever that's worth.   

That puts things into perspective for me mahalo flap! 

I’m reloading some blazer brass from a case I bought, I also have some brand new Remington cases. I have about 500 pieces of range pick ups as well. This will be my first time reloading 45acp and right now so far I have 3 test loads I’m waiting to try. I’m using CFE Pistol, 6.0gr, 6.5gr, and 7.0gr with 230gr TMJ Speer bullets. Shooting out of a Glock 21 barrel is 4.61”.

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ok then...just a few more questions-
What kind of die set and press do you have?
Do you have a taper crimp die? It would be a 4th die.
Are you trying to duplicate military ammo? (that is what I recommend)

I do help newbie loaders get started if you want to drop by the house in Waipahu.

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ok then...just a few more questions-
What kind of die set and press do you have?
Do you have a taper crimp die? It would be a 4th die.
Are you trying to duplicate military ammo? (that is what I recommend)

I do help newbie loaders get started if you want to drop by the house in Waipahu.

Right now I don’t have much room to set up a legit reloading area. I am using mostly lee stuff right now. I have a Lee hand press and a lee die set it has a taper crimp die. I wasn’t really trying to duplicate anything just going off of my Lyman book. I would love to drop by someday and soak up some knowledge that would be awesome!

Right now I don’t have much room to set up a legit reloading area. I am using mostly lee stuff right now. I have a Lee hand press and a lee die set it has a taper crimp die. I wasn’t really trying to duplicate anything just going off of my Lyman book. I would love to drop by someday and soak up some knowledge that would be awesome!

....
Kokohead is closed so I ain't goin' anywhere.
Contact via pm.
Tomorrow is open.

I've been going to Roy's well over 20 years, not stopping anytime soon.

I've been going to Roy's well over 20 years, not stopping anytime soon.

That’s fine. I’m just a nobody anyways and I doubt this will affect them at all, (not that that’s what I was trying to do). hopefully next time though they’ll treat a nobody like me better.

I did the tests mid to late 90's. I have the results on a 3x5 cards somewhere.... if I find them I can post later

Sorry. I could not find the cards.

All you need is a 44 magnum revolver so you can use those magnum primers.