44 Rem Mag. LRP PRIMERS ???
- Thread starter Keyfer 55
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Soonerpesek
Member
Isn't a Large Rifle primer taller than a Large Pistol primer....?
earlthegoat2
Member
Are you absolutely certain Starline 445 SM brass uses a Large Rifle Primer?
https://www.starlinebrass.com/445-super-mag-brass
https://www.starlinebrass.com/445-super-mag-brass
Yes. I was looking on there website.
Yes, but some cases will let them seat below flush. Pistol may or may not have trouble setting them off, dunno though, have never tried it.
Just copied this from there:
#2400 - 445 Super Mag Brass (Large Pistol primer)
445 Super Magnum Brass, E.T. Gates 445 Super Mag Brass
1.6 - 1.61 O.A.L.
Status: Available Now
Designed by Elgin T. Gates for silhouette shooting, the .445 Super Magnum is a heavy duty, lengthened version of the .44 Magnum. Guns have been manufactured by Dan Wesson and Thompson/Center. Primer pocket must be reamed deeper if you wish to use Large Rifle.
I suspect the same is likely true for .44 Rem Mag brass.
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earlthegoat2
Member
I guess I am confused then. It states right in the title that it takes a large pistol primer. It does also say in the description it can be reamed for a large rifle primer.
#2400 - 445 Super Mag Brass (Large Pistol primer)
445 Super Magnum Brass, E.T. Gates 445 Super Mag Brass
1.6 - 1.61 O.A.L.
Status: Available Now
Designed by Elgin T. Gates for silhouette shooting, the .445 Super Magnum is a heavy duty, lengthened version of the .44 Magnum. Guns have been manufactured by Dan Wesson and Thompson/Center. Primer pocket must be reamed deeper if you wish to use Large Rifle primers
#2400 - 445 Super Mag Brass (Large Pistol primer)
445 Super Magnum Brass, E.T. Gates 445 Super Mag Brass
1.6 - 1.61 O.A.L.
Status: Available Now
Designed by Elgin T. Gates for silhouette shooting, the .445 Super Magnum is a heavy duty, lengthened version of the .44 Magnum. Guns have been manufactured by Dan Wesson and Thompson/Center. Primer pocket must be reamed deeper if you wish to use Large Rifle primers
earlthegoat2
Member
OK. I think I understand now. You wish to know if there is a big difference between LRP and LP Magnum Primer.
Soonerpesek
Member
#2400 - 445 Super Mag Brass (Large Pistol primer)
445 Super Magnum Brass, E.T. Gates 445 Super Mag Brass
1.6 - 1.61 O.A.L.
Status: Available Now
Designed by Elgin T. Gates for silhouette shooting, the .445 Super Magnum is a heavy duty, lengthened version of the .44 Magnum. Guns have been manufactured by Dan Wesson and Thompson/Center. Primer pocket must be reamed deeper if you wish to use Large Rifle primers.
@Keyfer 55 .....Did you notice the part in red.......( the above was taken from the Starline website )....
ETA....... @earlthegoat2 beat me to it...
ETA 2..... @Walkalong did too.....!
445 Super Magnum Brass, E.T. Gates 445 Super Mag Brass
1.6 - 1.61 O.A.L.
Status: Available Now
Designed by Elgin T. Gates for silhouette shooting, the .445 Super Magnum is a heavy duty, lengthened version of the .44 Magnum. Guns have been manufactured by Dan Wesson and Thompson/Center. Primer pocket must be reamed deeper if you wish to use Large Rifle primers.
@Keyfer 55 .....Did you notice the part in red.......( the above was taken from the Starline website )....
ETA....... @earlthegoat2 beat me to it...
ETA 2..... @Walkalong did too.....!
I have had some brass back in the 80s. that the primer pockets were deep like LR. and the LP would be recessed to deep .
GeoDudeFlorida
Member
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- 11,047
Probably cut by a previous loader. I use a large rifle uniforming tool to cut some of my .44Mag brass for LRP’s for my Ruger M77/44. If you do it, it’s done. No going back and better keep that brass separate from any uncut brass …unless you really enjoy depriming.
I have a pocket uniformer I have done 50 pieces today.Probably cut by a previous loader. I use a large rifle uniforming tool to cut some of my .44Mag brass for LRP’s for my Ruger M77/44. If you do it, it’s done. No going back and better keep that brass separate from any uncut brass …unless you
really enjoy depriming.
https://www.midwayusa.com/product/6249483001
The subject you are discussing is not a modern day aberration, it is however a fact of life shooters and loaders have faced since the beginning of loading time.
Just so you are aware I will do the ground work and you can reap from my personal experiences.
First you will need 50-100 cases preferably new and you will use the above link tool to cut the primer pocket to the depth of a rifle primer pocket.
Step 2 , mark the head stamp of each case with a file cut so you always know what is what.
Step 3 load as normal, do not tweak your load.
WARNING
Rifle primers can be set off with 100% reliability in pistols utilizing frame mounted firing pins. (New Smith and wesson revolvers, Ruger, etc)
You will experience misfires if you are using a hammer mounted firing pin, if all you have is a pistol of this variety please utilize a federal primer. You will still have the occasional click but it will work much better.
The subject you are discussing is not a modern day aberration, it is however a fact of life shooters and loaders have faced since the beginning of loading time.
Just so you are aware I will do the ground work and you can reap from my personal experiences.
First you will need 50-100 cases preferably new and you will use the above link tool to cut the primer pocket to the depth of a rifle primer pocket.
Step 2 , mark the head stamp of each case with a file cut so you always know what is what.
Step 3 load as normal, do not tweak your load.
WARNING
Rifle primers can be set off with 100% reliability in pistols utilizing frame mounted firing pins. (New Smith and wesson revolvers, Ruger, etc)
You will experience misfires if you are using a hammer mounted firing pin, if all you have is a pistol of this variety please utilize a federal primer. You will still have the occasional click but it will work much better.
Jim Watson
Member
I have not "uniformed" more than a few .45 ACP and loaded with rifle primers, but all those fired normally in a 1911.
Even reloading with pistol primers seated way down there, they still shot. But firing pin protrusion on a 1911 is limited only by the spring stacking, eyeballs about 3/16".
Even reloading with pistol primers seated way down there, they still shot. But firing pin protrusion on a 1911 is limited only by the spring stacking, eyeballs about 3/16".
falmike
Member
I suggest simply trading rifle for pistol primers.
This has worked well for me
This has worked well for me
Palladan44
Member
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- Nov 7, 2020
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- 1,903
I'd assume that a S/A or D/A revolver which I'm assuming you're shooting it out of (or a carbine sized rifle) has plenty of firing pin inertia to indent the cup metal enough to have reliable ignition.
(Potential Problem one solved)
Then, if you start low on your load work up, and check for signs of pressure and get to an accurate and reliable load, then you've solved potential problem number 2.
SPM and SR primers I always thought the metal thickness might be a bit much for striker fired weapons. SPP are thinner metal, easily struck by weapons with less firing pin inertia. They will also start to "top hat" at less pressure.
Also, the primers you mentioned are used in weapons up to 65,000 or more PSI, so don't expect any "pressure signs" from the primers in your 44 Mag. with a max SAAMI of around 35,000 if I recall correctly. There likely will be no top-hatting of the primers in over-pressured rounds. But, as most can agree, primers lie!!!
(Potential Problem one solved)
Then, if you start low on your load work up, and check for signs of pressure and get to an accurate and reliable load, then you've solved potential problem number 2.
SPM and SR primers I always thought the metal thickness might be a bit much for striker fired weapons. SPP are thinner metal, easily struck by weapons with less firing pin inertia. They will also start to "top hat" at less pressure.
Also, the primers you mentioned are used in weapons up to 65,000 or more PSI, so don't expect any "pressure signs" from the primers in your 44 Mag. with a max SAAMI of around 35,000 if I recall correctly. There likely will be no top-hatting of the primers in over-pressured rounds. But, as most can agree, primers lie!!!
Riomouse911
Member
For those who may be interested in the dimensions of the various primers, Sierra had this primer chart posted on their website.
Funny how SRP and SPP are dimensionally the same externally, but LPP and LRP aren’t.
Stay safe.
Funny how SRP and SPP are dimensionally the same externally, but LPP and LRP aren’t.
Stay safe.
To expound further on primers and lies in a pistol cartridge less than a 500 magnum primer deformation is meaningless and trivial at best.
With a rifle cartridge primer deformation does have meaning. However who is reading the primers can get it very much wrong. Reading primers is the equivalent of reading tea leaves, everyone knows someone who is a back yard wonder.
Proceed with caution and use precedent set by ballistic labs.
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