CCI Large Rifle Primers For 45 ACP?

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jski

jski

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CCI Large Rifle Primers for 45 ACP rounds?
Considering they available, …
 
jski said:
CCI Large Rifle Primers for 45 ACP rounds?
Considering they available, …
Click to expand...

Nope. The cup is taller on large rifle vs large pistol and could result in a bunch of squibs as you cant set the primer as deep. There will always be someone that says "I did that and it worked fine" though
Using small rifle in small pistol generally does work providing you have a strong enough hammer spring.

From Powder Valleys website:
  1. Small rifle primers – which are about .175 inches in diameter and .120 inches tall.
  2. Small pistol primers – which are about the same size as small rifle primers but designed specifically for handguns.
  3. Large rifle primers – which measure about .128 inches in height and .212 inches in width.
  4. Large pistol primers – which are an average of .120 inches tall and.212 inches wide.
 
I’ve used CCI small magnum rifle primers in my handgun loads for my wheelguns without issues.

I did have light strikes on some of my 357 loads. Not many.
 
The correct answer is...shhhhmabey? Depends on your gun and your brass, and just how strong a desire you have to walk the bleeding edge? In my experimentation in the past with large rifle in pistol cases: 45 ACP, all of my 1911's ran fine, no hickups with any of them. My striker fired guns...not so much. My convertible ruger revolvers...once in a while the primer would be high enough the cylinder wouldn't turn easily.

I'd suggest you try and make a trade if you can. Also keep an eye on the reloading components available thread, large pistol does come up once in a while, you just need to be ready to jump and willing to pay ~ .10 a primer when they do.
 
I use WLR in my 45 acp and 44 special they work just fine. Your mileage may very.
 
Kaldor said:
Nope. The cup is taller on large rifle vs large pistol.

From Powder Valleys website:
  1. Small rifle primers – which are about .175 inches in diameter and .120 inches tall.
  2. Small pistol primers – which are about the same size as small rifle primers but designed specifically for handguns.
  3. Large rifle primers – which measure about .128 inches in height and .212 inches in width.
  4. Large pistol primers – which are an average of .120 inches tall and.212 inches wide.
Click to expand...

This.

Small rifle and pistol primers have the exact same outer dimensions. Large pistol and rifle primers do not. Large Rifle primers are taller by 0.008" and will sit proud... unless seated with enough force to cram them in there flush. It CAN be done, but requires a lot of extra force, and you need to check every single one. The pistol will also require a strong hammer spring to ensure proper ignition... like when using small rifle primers in pistols.

Rules to live by:

Small rifle primers can be used in pistols as long as the hammer spring is strong enough to fire the thicker primer face.

Small pistol primers should not be used in rifles unless it is a very low pressure load/cartridge... as the metal in the primer is thinner/softer and will not handle high pressures.

Large Rifle/Pistol primers discussed above.
Same rules as when using SR primers in place of SP, but the LR primers are 0.008" taller than the LP primers, so they will sit proud when seated normally, so it is not recommended.

Good Luck
 
n2omike said:
This.

Small rifle and pistol primers have the exact same outer dimensions. Large pistol and rifle primers do not. Large Rifle primers are taller by 0.008" and will sit proud... unless seated with enough force to cram them in there flush. It CAN be done, but requires a lot of extra force, and you need to check every single one. The pistol will also require a strong hammer spring to ensure proper ignition... like when using small rifle primers in pistols.

Rules to live by:

Small rifle primers can be used in pistols as long as the hammer spring is strong enough to fire the thicker primer face.

Small pistol primers should not be used in rifles unless it is a very low pressure load/cartridge... as the metal in the primer is thinner/softer and will not handle high pressures.

Large Rifle/Pistol primers discussed above.
Same rules as when using SR primers in place of SP, but the LR primers are 0.008" taller than the LP primers, so they will sit proud when seated normally, so it is not recommended.

Good Luck
Click to expand...


Star brass has no problem with large rifle or large pistol in 44 special or 45 ACP with the same pressure and both seat flush. This is new brass right out of the box from Star. Loaded 50 44 special yesterday with no problems. The spring and firing pin thing is strange because I a Thompson Center and Encore with all 4 types of primers and they work fine. They definitely work better than me. :)

00211B30-F97A-4E1A-AE45-C50C3E3CA43F.jpeg
 
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jski said:
I’ve used CCI small magnum rifle primers in my handgun loads for my wheelguns without issues.

I did have light strikes on some of my 357 loads. Not many.
Click to expand...
That 8-thousandths height difference between large rifle and large pistol primers means you are creating a possible slamfire with every slide return. Is it a certainty? No. Is it likely? It's certainly greater than the odds afforded in a normal chance occurrence. The question is: Why go out of your way to create a potentially dangerous situation when you don't have to? You could also probably drive your car 100MPH down a dark clay road on a moonless night with no headlights for at least a mile... but why would you?
 
dannyd said:
Star brass has no problem with large rifle or large pistol in 44 special or 45 ACP with the same pressure and both seat flush.
Click to expand...
There's something very wrong here, then. How is Starline defying the laws of physics by violating the first law of the Conservation of Mass? Mass cannot be created or destroyed, but it can be changed in form. What is Starline doing with the extra 0.008" of height on LR primers which is missing from LP primers? If they both seat flush, some mass is disappearing into the 5th dimension - but only when using Starline brass?
 
GeoDudeFlorida said:
That 8-thousandths height difference between large rifle and large pistol primers means you are creating a possible slamfire with every slide return. Is it a certainty? No. Is it likely? It's certainly greater than the odds afforded in a normal chance occurrence. The question is: Why go out of your way to create a potentially dangerous situation when you don't have to? You could also probably drive your car 100MPH down a dark clay road on a moonless night with no headlights for at least a mile... but why would you?
Click to expand...

He said small rifle primers - no? In a wheelgun (I assume SPP cartridge) - what is the issue there?
 
twarr1 said:
How does a proud primer cause a squib? Did you mean slam fire?
Click to expand...

Sir Isaac Newton, pretty sure this one falls under his second law, but my science nerd speak is a little rusty. Might be third law as well, or a combo of the two.

In short, the hammer doesnt have enough time to gain enough acceleration to set the primer off with enough force.
 
GeoDudeFlorida said:
There's something very wrong here, then. How is Starline defying the laws of physics by violating the first law of the Conservation of Mass? Mass cannot be created or destroyed, but it can be changed in form. What is Starline doing with the extra 0.008" of height on LR primers which is missing from LP primers? If they both seat flush, some mass is disappearing into the 5th dimension - but only when using Starline brass?
Click to expand...

They a picture is worth a thousand words. The mic is set a .008 that a little bit thicker than an NRA 25 yard pistol target .006 Don't own anything Semiautomatic except a lever gun. :)

CD068D93-402C-4184-AB00-090913480EAE.jpeg
 
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This is my 44 magnum now When I'm done shooting it going to switch to 38 special barrel with F100 primers then 30-30 with large Rifle again. Not changing the anything but the barrels that is the magic of single shot guns they live in their own dimension. :)

6C3E8447-0549-45F4-BA5D-52A5021183A4.jpeg
 
From reading posts here over the years some brass that takes LP primers has deep enough primer pockets that LR primers don't sit proud, but you still might experience ignition issues if the gun can't set off the tougher primers. It is an easy test to see if they can be seated below flush in your cases, and below flush is what I highly recommend. If they can't I recommend not doing it. If they can, it doesn't hurt to try them out in your firearm. As always, realize you are changing something from the load you were using., so back off and work back up if needed.
 
dannyd said:
They a picture is worth a thousand words. The mic is set a .008 that a little bit thicker than an NRA 25 yard pistol target .006 Don't own anything Semiautomatic except a lever gun. :)

View attachment 1060376
Click to expand...
Those don’t look flush, either.
You do you and good luck with that. If the OP follows that advice with a .45auto and has a slamfire that’s on him.
 
dannyd said:
This is my 44 magnum now When I'm done shooting it going to switch to 38 special barrel with F100 primers then 30-30 with large Rifle again. Not changing the anything but the barrels that is the magic of single shot guns they live in their own dimension. :)

View attachment 1060379
Click to expand...
Now that we’ve seen not exactly flush seated large rifle .44Spl, where’s the flush seated large rifle .45acp?
 
Cheesemaker said:
He said small rifle primers - no? In a wheelgun (I assume SPP cartridge) - what is the issue there?
Click to expand...
No, OP asked about large rifle primers in .45ACP cut for large pistol then compared it to using small pistol and rifle interchangeably. It’s not the same thing.
Every time this topic comes up the same thing happens: some folks point out the difference and inherent risk while others claim it’s no big deal. In the end my advice is don’t take stupid chances but if you do at least try not to hurt anyone else in the process. And don’t gripe if it goes wrong.
 
CoalCrackerAl said:
I use LPP for cast rifle loads. Just have to be sure you bottom out the primer. If not a second strike they will fire. (1st strike seats them) But i don't use LRP for handgun loads.
Click to expand...
I’ve recut the primer pockets on some of my .44Mag brass for large rifle - and I shoot them in a rifle. Go figure. But I don’t use large pistol primers in that recut brass. Don’t load them into revolvers either.
 
GeoDudeFlorida said:
I’ve recut the primer pockets on some of my .44Mag brass for large rifle - and I shoot them in a rifle. Go figure. But I don’t use large pistol primers in that recut brass. Don’t load them into revolvers either.
Click to expand...

I recut my 38 special and 357 magnum to us LP and LR.
 
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