I'm having trouble believing any load using CCI primers can be under 5000psi.

well, they were standard CCI 209's, not their 209M, which is much hotter.

Hi all,

I had a question about roll crimping earlier in this thread. I contacted BPI and here is the response I received.

Thanks for your inquiry.



A Roll crimp typically adds less pressure to the load than does a fold crimp.



The standard rule of thumb is ‘ you can roll crimp a fold crimp load, but do not fold crimp as roll crimp load’.



Now with that in mind, we do not recommend roll crimping a fold crimp load if the published pressure is near 10,000 psi or more, just in case something goes wrong.



Regards,



Dick Oftedal

Given the feedback from BPI, I am going to send 3 or 4 16ga, 2.5", low pressure, Bismuth, roll crimp loads in for testing once I can get all components. Don't hold your breath but I will report back here. Mark