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Old 09-20-2021, 08:05 AM
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BB57 BB57 is offline
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Originally Posted by BC38 View Post
Absolutely, and to further put a point on it, CCI has a BYOP (bring your own primers) program where you supply the primers and they make factory reloads for you. They will load your ammo with SPP, SMP, or SRP primers for you - whatever you have to give them.
That means they are accepting the liability of loading ammo with the "wrong" primers. Think they'd do that if there was ANY appreciable difference? Obviously the answer is a big NO WAY.
I have not heard of CCIs BYOP program. Can you share a link?


Supervel has a BYOP program although it has some important limits you need to understand before you start mixing and matching primers.

The BYOP program is limited to certain pistol cartridges:

- 9mm 115 gr FMJ;
- 9mm 124 gr FMJ;
- 9mm 147 gr;
- .40 S&W 180 gr FMJ; and
- .45 ACP 230 gr FMJ.

Also bear in mind the primers they allow are:

- small pistol;
- small magnum pistol; or
- small rifle.

For .45 ACP they only allow large pistol or magnum pistol primers - no rifle primers.

They *do not* allow small magnum rifle primers, nor the NATO equivalent in the 9mm or .40 S&W or large rifle in the .45 ACP.

Finally, they limit primers to the following brands:
- Remington,
- Magtech,
- Murom, or
- Sellier and Bellot.

In short, they swap primers for selected loads in reasonably small capacity, high load density cartridges using a powder or powders that are not primer sensitive, with strict limits primer types and brands.

BYOP Program

Last edited by BB57; 09-20-2021 at 08:09 AM.
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