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Feb 12th, 2024
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 SR primers in pistol?
#8164535
02/11/21 02:32 AM
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Joined: May 2017
Posts: 5,198
Smokey Bear
OP
THF Trophy Hunter
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OP
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Posts: 5,198 |
Has anyone tried it? If so, how much did you reduce powder charge before working back up watching for pressure? Did you use a chronograph to monitor and not exceed velocities of an established load with small pistol primers? Did you see an increase in velocity? How did it impact ES? I thought this might be an interesting discussion in these times of component shortages....
Disclaimer: I am in no way advocating anyone load without published data.
Smokey Bear---Lone Star State.
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164548
02/11/21 02:41 AM
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Joined: Feb 2011
Posts: 6,183
Mike Honcho
THF Trophy Hunter
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Yes I have been doing it for a while. I’m about 5-7% less. I just load 500 Rds of 9mm with srp and 3.7 gr of Titegroup and 115gr Hornady FMJ.
“Two things that define an individual what you do when you have everything, and what you do when you have nothing."
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Re: SR primers in pistol?
[Re: Mike Honcho]
#8164557
02/11/21 02:51 AM
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Joined: May 2017
Posts: 5,198
Smokey Bear
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THF Trophy Hunter
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Yes I have been doing it for a while. I’m about 5-7% less. I just load 500 Rds of 9mm with srp and 3.7 gr of Titegroup and 115gr Hornady FMJ. Jorge, I have dabbled with it in the past with 357 magnum. I gained about 30 fps over the same powder charge but the ES was actually tighter. In an unrelated comment: I was doing a lot of work with the chronograph until I somehow shot the chronograph with the pistol.... FUBAR
Smokey Bear---Lone Star State.
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164562
02/11/21 02:57 AM
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Joined: Sep 2006
Posts: 4,906
luv2brode
Extreme Tracker
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Extreme Tracker
Joined: Sep 2006
Posts: 4,906 |
i am cancelling my subscription, i am tired of your issues!
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164576
02/11/21 03:10 AM
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Joined: Feb 2011
Posts: 6,183
Mike Honcho
THF Trophy Hunter
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THF Trophy Hunter
Joined: Feb 2011
Posts: 6,183 |
Pistols I don’t chrono. I’m not that into them and I’m at best an average shot with one. I have noticed a trend with rifles when using srp magnum primers es and sd normally improve.
“Two things that define an individual what you do when you have everything, and what you do when you have nothing."
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164578
02/11/21 03:12 AM
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Joined: Aug 2011
Posts: 6,179
Tactical Cowboy
THF Trophy Hunter
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THF Trophy Hunter
Joined: Aug 2011
Posts: 6,179 |
Just load them.
If you're super worried about it, back the charge off 10% to start with.
The secret to a long life is to try not to shorten it.
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Re: SR primers in pistol?
[Re: Tactical Cowboy]
#8164620
02/11/21 03:46 AM
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Joined: May 2017
Posts: 5,198
Smokey Bear
OP
THF Trophy Hunter
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Just load them.
If you're super worried about it, back the charge off 10% to start with. I wanted to see for myself what difference it made in my loads, so I worked it out. I was loading 170’s to shoot silhouettes at 200 yards with a pistol. That was some time ago. With primers as hard to find as they currently are, I suspected there are several considering using them through this shortage.
Last edited by Smokey Bear; 02/11/21 03:48 AM.
Smokey Bear---Lone Star State.
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164695
02/11/21 05:00 AM
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Joined: Sep 2006
Posts: 32,506
kmon11
junior
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junior
Joined: Sep 2006
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As read on another forum I remember reading that CCI magnum pistol primers were the same as CCI small rifle primers. I did a search and this is what popped up.
NOTE 1: According to Speer/CCI Technical Services - Both the CCI 550 Small Pistol Magnum and CCI 400 Small Rifle primers are identical in size. Both primers use the same cup metal and share the same cup thickness. Both primers use the same primer compound formula and same amount of primer compound.Feb 21, 2013 Wonder what a call to Speer/CCI would turn up now?
lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164703
02/11/21 05:17 AM
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Joined: Aug 2011
Posts: 6,179
Tactical Cowboy
THF Trophy Hunter
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THF Trophy Hunter
Joined: Aug 2011
Posts: 6,179 |
Just load them.
If you're super worried about it, back the charge off 10% to start with. I wanted to see for myself what difference it made in my loads, so I worked it out. I was loading 170’s to shoot silhouettes at 200 yards with a pistol. That was some time ago. With primers as hard to find as they currently are, I suspected there are several considering using them through this shortage. I've loaded a lot of SR/SPM for USPSA. Never had a problem. If they ever come available again, I'll probably only buy SRP for everything that doesn't take a large primer.
The secret to a long life is to try not to shorten it.
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164714
02/11/21 05:36 AM
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Joined: Sep 2009
Posts: 1,078
bigsky
Pro Tracker
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Pro Tracker
Joined: Sep 2009
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Only issue you might run into, depending upon brand, is the cup being too hard for striker fired pistols with aftermarket components
Last edited by bigsky; 02/11/21 05:38 AM.
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Re: SR primers in pistol?
[Re: kmon11]
#8164762
02/11/21 12:01 PM
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Joined: May 2017
Posts: 5,198
Smokey Bear
OP
THF Trophy Hunter
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OP
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Joined: May 2017
Posts: 5,198 |
As read on another forum I remember reading that CCI magnum pistol primers were the same as CCI small rifle primers. I did a search and this is what popped up.
NOTE 1: According to Speer/CCI Technical Services - Both the CCI 550 Small Pistol Magnum and CCI 400 Small Rifle primers are identical in size. Both primers use the same cup metal and share the same cup thickness. Both primers use the same primer compound formula and same amount of primer compound.Feb 21, 2013 Wonder what a call to Speer/CCI would turn up now? That is some good info Kmon1.
Smokey Bear---Lone Star State.
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8164783
02/11/21 12:43 PM
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Joined: May 2010
Posts: 4,493
1955
Extreme Tracker
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Extreme Tracker
Joined: May 2010
Posts: 4,493 |
I have never done it , however I may have to the way the primer shortages are heading! 
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Re: SR primers in pistol?
[Re: bigsky]
#8164960
02/11/21 03:02 PM
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Joined: Aug 2011
Posts: 6,179
Tactical Cowboy
THF Trophy Hunter
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THF Trophy Hunter
Joined: Aug 2011
Posts: 6,179 |
Only issue you might run into, depending upon brand, is the cup being too hard for striker fired pistols with aftermarket components This is true.
The secret to a long life is to try not to shorten it.
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Re: SR primers in pistol?
[Re: bigsky]
#8165011
02/11/21 03:33 PM
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Joined: Sep 2009
Posts: 18,954
ChadTRG42
THF Celebrity
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THF Celebrity
Joined: Sep 2009
Posts: 18,954 |
Only issue you might run into, depending upon brand, is the cup being too hard for striker fired pistols with aftermarket components ^^ This. I have not done it, but I have been told small pistol magnum primers are the exact same as small rifle primers.
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8165188
02/11/21 05:04 PM
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Joined: Sep 2004
Posts: 777
Jon
Tracker
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Tracker
Joined: Sep 2004
Posts: 777 |
Does anyone have any info about substituting regular small pistol primers (not small pistol magnum) in place of small rifle primers? These would be fairly mild .223 loads for AR15.
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Re: SR primers in pistol?
[Re: Jon]
#8165259
02/11/21 05:44 PM
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Joined: Sep 2006
Posts: 32,506
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,506 |
Does anyone have any info about substituting regular small pistol primers (not small pistol magnum) in place of small rifle primers? These would be fairly mild .223 loads for AR15. Problems I could see with that direction is the non magnum SPP is the pressure even with mild loads in the 223 you are most likely talking 50k psi which is well above the pressure of most handgun use. That would be for the same basic reason Remington 6 1/3 primers made for small rifle cartridges think 25-20, 22 Hornet... ones with little case volume and pressure. You might get primer flow or piercing with the thinner/softer primer cups. Not saying you would but it is a possibility.
lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8165278
02/11/21 05:54 PM
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Joined: Dec 2008
Posts: 41,173
J.G.
THF Celebrity
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THF Celebrity
Joined: Dec 2008
Posts: 41,173 |
Helpful thread.
I've got some .50 Beowulf to load. It calls for a small pistol magnum primer. I was thinking, surely a small rifle primer will work. Evidently my thinking was correct, according to y'all.
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Re: SR primers in pistol?
[Re: kmon11]
#8165327
02/11/21 06:28 PM
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Joined: Oct 2004
Posts: 39,549
redchevy
THF Celebrity
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THF Celebrity
Joined: Oct 2004
Posts: 39,549 |
Does anyone have any info about substituting regular small pistol primers (not small pistol magnum) in place of small rifle primers? These would be fairly mild .223 loads for AR15. Problems I could see with that direction is the non magnum SPP is the pressure even with mild loads in the 223 you are most likely talking 50k psi which is well above the pressure of most handgun use. That would be for the same basic reason Remington 6 1/3 primers made for small rifle cartridges think 25-20, 22 Hornet... ones with little case volume and pressure. You might get primer flow or piercing with the thinner/softer primer cups. Not saying you would but it is a possibility. Dang i was looking for the same question. Ive got more primers for 9mm than i need and fewer for 223 than i want lol
It's hell eatin em live
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8165454
02/11/21 08:02 PM
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Joined: Aug 2011
Posts: 919
Gemlin
Tracker
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Tracker
Joined: Aug 2011
Posts: 919 |
You may puncture the cup of the primer if you use a Small Pistol in a .223 (the Small rifles have a slightly thicker cup)
If you use a Small rifle in a pistol, you may not have enough force in a striker gun to set it off, you may have to double strike them.
Last edited by Gemlin; 02/11/21 08:03 PM.
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Re: SR primers in pistol?
[Re: Smokey Bear]
#8172570
02/16/21 10:32 PM
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Joined: Aug 2011
Posts: 6,179
Tactical Cowboy
THF Trophy Hunter
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THF Trophy Hunter
Joined: Aug 2011
Posts: 6,179 |
The secret to a long life is to try not to shorten it.
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Re: SR primers in pistol?
[Re: Tactical Cowboy]
#8172872
02/17/21 02:57 AM
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Joined: May 2017
Posts: 5,198
Smokey Bear
OP
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Thank you for sharing that video with us Cowboy. It contained some timely data I think a lot of us wonder about and may find reassuring. Particularly the pressure testing. Good stuff.
Smokey Bear---Lone Star State.
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Re: SR primers in pistol?
[Re: Jon]
#8176298
02/19/21 03:14 PM
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Joined: Dec 2020
Posts: 164
MathGeek
Woodsman
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Woodsman
Joined: Dec 2020
Posts: 164 |
Does anyone have any info about substituting regular small pistol primers (not small pistol magnum) in place of small rifle primers? These would be fairly mild .223 loads for AR15. I've done it and it works. I keep the loads at book minimum. In some cases, there is an ignition delay of a few milliseconds and < 1% failure to fire. Compare this to when we use rifle primers in ARs and failures to fire are < 0.1%.
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