Substituting Small Rifle Primers for Small Pistol

[Tawadc95]

I loaded 10 9mm's with REM srp tonight, I'll give them a whirl this week.

[Tokarev]

On another note I have some .233 rounds loaded with small pistol primers I plan on shooting tomorrow.

Any updates?

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[5pins]

Any updates?

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I did a quick test just to see if the idea was viable. The only small pistol primers I have were some Federal, Winchester, and some from a company out of Bosnia. The Unis, Bosnian, are magnum primers and I have had problems in the past getting them to set off in any of my pistols.

I loaded 10 of each type in some once fired Speer .223 brass. I used a generic 55gr FMJ bullet and a max charge of BL-C (2). I also loaded some using Wolf small rifle magnum primers for comparison.

The only issue I has was with the Federal primers. Two of them were pierced. The Winchester and Unis worked without issue and showed no signs of pressure.

I'm going to expand on this test later as soon as I get enough once fired brass. The Speer brass I used was crimped and I don't feel like I removed the crimp well enough, causing primer seating issues. This is probably why I had such large extreme spreads with them.

Anyway, here are the velocity data I got, all shot out of a 20in BCM match upper.

Wolf small rifle magnum.
High 3207fps
Low 3089fps
Average 3160fps

Unis small pistol magnum
High 3186fps
Low 3105fps
Average 3145fps

Winchester small pistol
High 3190fps
Low 3051fps
Average 3129fps

Federal small pistol
High 3202fps
Low 3058fps
Average 3105fps

[Flamingo]

Here is a pretty good video from supervel.



TLDW - Pressure for SPP, SPM, SRP are all pretty close.

[Super77]

Thats great news, I have a bunch of small rifle but low on small pistol

[Ivantheterrible]

I just finished shooting up about 60 rounds of .45 ACP small pocket brass rounds using some old CCI SR primers and a standard charge of W231 under a 230g cast bullet. Everything worked just fine out of a Springfield 1911.

[5pins]

I have a bunch of small pistol primers loaded in some .223 and 6.5 Grendel. I'm just waiting for the weather to get nice enough to go the range and try them out.

[Tawadc95]

Has anyone tried small rifle magnum for their 9mm?
I've always been able to use small pistol or small pistol magnum from any manufacturer with no ill results.

I've started using small rifle for the 9 but I have a really nice size supply of small pistol magnum if it works.

[NGP]

I have a bunch of small pistol primers loaded in some .223 and 6.5 Grendel. I'm just waiting for the weather to get nice enough to go the range and try them out.

Let us know how they work, thinking of trying the same myself.

[Flat6]

I ran a few magtech small rifle primers over 3.2 titegroup with 147 zero bullets and had clean ignitions with Glock 45 stock trigger and springs. Couldn’t tell recoil difference versus federal pistol version of the same load. I don’t own a chrono. How are all you adjusting your loads with the rifle primers?