SR primers in 357 Mag brass for Lever action Carbine

[Rule3]

I have way more Small rifle primers than small pistol mag primers.

For use in a 357 Mag lever action carbine using H110 powder I think I can use the small rifle primers yes??

Small rifle primers are used in the 30 M1 Carbine with H110.

The reason I ask is the old CCI chart I have shows a SP mag puts out more energy than a small rifle primer??

So assuming the lever action has enough spring to ignite the primer what do you think?

 

[243winxb]

Try a few.

 

[USSR]

I use SRP's in my .357 Magnum handgun loads all the time. They are actually a bit milder than magnum SPP's.

Don

 

[Rule3]

I use SRP's in my .357 Magnum handgun loads all the time. They are actually a bit milder than magnum SPP's.

Don

Are you using H110/Win 296? That is my only concern, it is so darn finicky. I have a lot of it and want to use it up, would rather shoot it in a rifle than full bore handgun mag loads.

 

[PO2Hammer]

Shouldn't be a problem to use rifle primers as long as the gun sets them off.
I have that same chart, it's fairly old, from the late '80s or early '90s IIRC. I read an article by an engineer that worked for CCI and he said they completely revamped their primer line in the late '90s, so the chart may be out of date.

 

[Reefinmike]

Ive never used SPM primers for my w296/h110 357 loads. always just used tula or cci SRP just to keep things simple since I load 300 blackout as well. same powder, same primers.

Never had any ignition problems with w296/h110 besides the one time the powder charge was sitting on the scale tray back at home instead of inside the case at the range :

 

[buck460XVR]

I would be hesitant to use a non-Magnum primer with H110/W296 in a small volume case like .357. There is a reason all manuals show to use a magnum primer with H110/W296 in .357, and it ain't just because they are trying to sell magnum primers. I suggest you get some IMR4227 to use in your lever with those small rifle primers. Carbines really like IMR4227 and it does not require a magnum primer.

 

[IMtheNRA]

243winxb - what a GREAT photo! Thanks a lot!

 

[357 Terms]

I have always used SR primers with VV n110, my older manual calls for it.

 

[savanahsdad]

you can call CCI and ask , but I read an article by one of there tech's and on another post on here that said CCI 400 and CCI 550 are the same thing, SPM=SR,

 

[Rule3]

I agree that the chart I posted is OLD.

Hodgdon uses a spm in the 357 mag with 110 bullet max of 23 gr H110

In the 30 carbine same bullet they use srp and a max of 15 gr H110

Granted the 357 has more powder but is the 8 grains difference that much harder to burn correctly??

My intent here is to use up a big jug of H110, I am a go by the book kinda guy. I can load the 30 carbine but want to shoot the lever gun more.

There is some method to my madness.

I can e mail or call but I predict they will only go by the "book"

 

[USSR]

Quote:
Originally Posted by USSR View Post
I use SRP's in my .357 Magnum handgun loads all the time. They are actually a bit milder than magnum SPP's.

Don

Are you using H110/Win 296? That is my only concern, it is so darn finicky. I have a lot of it and want to use it up, would rather shoot it in a rifle than full bore handgun mag loads.

Nope, refuse to use H110/Win296 for anything due to it's unsuitability for reduced charge weights. I use 2400 and IMR4227 in .357 Magnum, .45 Colt, and .30 Carbine.

Don

 

[Rule3]

Well the Hodgdon 3% rule is broken in so many manuals and even their own data who knows for sure if the primers will work.

Some data is over a 10% reduction in print.

I did a little checking, seems Hodgdon data also loads the wimpy 454 Casull with 30 grains of H110 and a SRP.

Would think that would indicate that the SRP is enough to ignite the 357 Mag.

 

[Rule3]

Update

Went to the range with my Competition Electronics Chrony

Hot and humid

Test rifle Marlin lever 357/Mag

Bullet Hornady XTP 158 gr

Brass Win Nickel

With CCI SPMag results:

H- 1752

L- 1677

Avg-1724

ES-75

SD-28

+++++++++++++++++++++++++++

With CCI Small Rifle

H-1752
L-1702
AVG-1730
ES-50
SD-20

My conclusion is that there is not a hill of beans difference between the primers as to results.

The Marlin went bang every time with the SR primers.

 

[TimSr]

I did a little checking, seems Hodgdon data also loads the wimpy 454 Casull with 30 grains of H110 and a SRP.

Would think that would indicate that the SRP is enough to ignite the 357 Mag.

Winchester does not make Small rifle magnum primers. They used to not make pistol magnum primers and they were labeled "for standard or magnum". They list magnum primers for all pistol loads with 110/296. There is variance between primer mfgs.

There is a reason all published data for 110/296 in pistol rounds calls for magnum primers.

but...

Small rifle primers are made to ignite mostly fast rifle powders, which are still slower than slow pistol powders. They burn hotter and longer than standard small pistol primers, and are a closer substitute (as far as ignition) for a small pistol magnum primer than a standard small pistol primer and would probably work fine for a 357 carbine.


Keep in mind that the test shows no difference only UNDER THE CONDITIONS THEY WERE TESTED. Different temperatures, testing in revolvers, and in different cartridges could easily produce different results, especially if you substitute standard pistol primers for magnums.

 

[Rule3]

My test and post today #14 is proof enough to me that cci SR and CCI SPM make no difference in the 357 Mag and H110 in the Marlin carbine, The hammer has enough force to ignite the supposed harder cup.

How did Winchester get in the thread? Other than that's what Hodgdon tested.

I have no intention of using regular pistol primers.

I can also test Win SRP and WSPM and would bet get the same results.

Lyman use SRM in the Casuall and Hornady uses a Fed SR primer. The Casull has a lot more powder volume than a 357 Mag.

 

[therealwormey]

unless your moving to the north pole i'd use what you tested. its working and your results were close enuff a blind man would like to see them. i'm in NC and shoot h110 in the winter at 30 degrees using standard LP and it fires off just fine. ive loaded 30 carbine(for blackhawk) with H110 using cci sp and sr and it lites fine. use what you got if it works for you.