Question on CCI primers
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rcmodel
Member in memoriam
I say they are not the same.
rc
rc
jwrowland77
Member
Nope says I as well.
I say they are the same.
This comes up from time to time. On another forum someone actually copied basically this email from CCI:
That their small pistol magnum and small rifle [not magnum] primers had the same material in the cup, the same thinkness in the cup and the cup is the same size diameter and depth. The charge is the same material, and the same amount of material.
They are the same.
This comes up from time to time. On another forum someone actually copied basically this email from CCI:
That their small pistol magnum and small rifle [not magnum] primers had the same material in the cup, the same thinkness in the cup and the cup is the same size diameter and depth. The charge is the same material, and the same amount of material.
They are the same.
jwrowland77
Member
Then wouldn't they list in the front CCI 400 small rifle/small pistol magnum or CCI 550 small pistol magnum/small rifle?
IMHO, each are listed/packaged separately because each are different from the other.
Edit: then why wouldn't they list them in the same, if each were the same exact everything?
Arkansas Paul
Member
I've heard that you can use the SPP in place of SRP but not the other way around.
I would bet money that there is some subtle difference.
I would bet money that there is some subtle difference.
Reefinmike
Member
Other way around... Small rifle is safe to use in place of small pistol but NOT the other way around.
Wil Terry
Member
WHY DO YOU NOT call CCI and ask for it straight from the horses mouth ??
I have seen that on another forum, but you know what they say about the internet
If you hear it on the Internet that it has to be true!. No they are not. This chart is old but a SPM actually is hotter than a SR
All rifle primers are harder material to withstand the higher loads not necessarily a hotter flame.
All rifle primers are harder material to withstand the higher loads not necessarily a hotter flame.
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moxie
Member
It's only 3:00 in the afternoon in Idaho.
That shows the 550 spm is hottest of all the small primers. What about the cup thickness ?
Just called and they are on PST according the their message and also closed on Fri
Wil Terry said:
Good Point Wil. As this has been going around and around for years, I did just that back in August of 2013.
My Email to CCI.
With all the component shortages around, there is a lot of talk about primers and how some are identical to others and how they can be substituted.
An example would be your CCI 550 SPM and your CCI 400 SR primers. Is it true that these are indeed identical primers and the only difference is the # and the packaging?
I need CCI SR primers and I can only find 550 SPM primers. Is it OK for me to substitute the 550's for the 400's? This would be for a 223/5.56.
Thanks
Steve
Their Reply.
Steve, the specifications on these 2 primers are not the same and should not be interchanged. Not using the right loading components can lead to a high pressure situation and be very dangerous. Follow the load data in the manuals to make sure that you are not getting high pressures.
Make Every Shot Count!
Justin M.
CCI/Speer
2299 Snake River Ave
Lewiston, ID. 83501
Straight from the horse, take it or leave it.
jwrowland77
Member
There you have it.
If I am incorrect I apoligize. A while back on another forum a letter from CCI was posted that said that they were the same. Many people think that CCI small pistol magnum primers are much harder [harder cups] than small pistol. I know this is a different subject.
If CCI now says that you should not ever use small pistol magnum in place of small rifle I would follow their instructions.
Winchester small pistol primers use to be nickel plated, now they are brass. They look different. Primer manufacturers may or may not be changing their products now and then. I have my preference for primers just like many on this forum. I like CCI and will continue to use them.
If CCI now says that you should not ever use small pistol magnum in place of small rifle I would follow their instructions.
Winchester small pistol primers use to be nickel plated, now they are brass. They look different. Primer manufacturers may or may not be changing their products now and then. I have my preference for primers just like many on this forum. I like CCI and will continue to use them.
sexybeast said:
I am not sure of what "letter" you speak of, but.
I do recall a letter posted on this forum (I think) from CCI that said their Small rifle and Small Rifle Magnums had identical primer compound and the only difference was the thickness of the cup.
Damn, now I have to contact them again to put this to bed, sorry.
jwrowland77
Member
Even if the only difference is the thickness of the cup, then there's still a difference and so to answer the OPs question, no they are not/would not be the same EXACT thing. Basic argument from Psychology class 101.
Hondo 60
Member
nope sorry, not the same.
I've tried SR (400s) in a 38 spl & the cups were too hard for the primers to go off.
I've never had a problem with 500s or 550s
I've tried SR (400s) in a 38 spl & the cups were too hard for the primers to go off.
I've never had a problem with 500s or 550s
ArchAngelCD
Member.
Even though we have proof they are different in the form of a letter from CCI I'm going to chime in.
IMO there is no way any company would produce 2 different primer packages if the primers within were identical. For one thing they run the risk of having too many of one and not enough of the other. If they were the same they would have the same number.
I'm not a fan of third hand information and stories about reading something on another forum. We are on this forum, not another forum and with something as important as this only first hand proof is acceptable like the letter posted by "steve4102" above.
IMO there is no way any company would produce 2 different primer packages if the primers within were identical. For one thing they run the risk of having too many of one and not enough of the other. If they were the same they would have the same number.
I'm not a fan of third hand information and stories about reading something on another forum. We are on this forum, not another forum and with something as important as this only first hand proof is acceptable like the letter posted by "steve4102" above.
So there appears to be a discrepancy (Note #1 on the linked SKS forum post)) by someone named Frisco Pete Global Moderator and the letter (documentation) posted by Steve 4102 direct from CCI.?
I would wonder why then does CCI offer both primers?, they could streamline and consolidate and sell one primer good for both?
More definitive proof would be needed for me to substitute.
http://www.cci-ammunition.com/products/primers/primer_chart.htm
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