1 post
Joined October 2020

Primer seating issue


I am having primer seating issue using large CCI-200 primers loading a 308Win. I am using Lapua brass with clean primer pockets and no crimping on cases. The primers are not going deep enough to the primer pocket. I have installed the shellplate according to instructions and if I tighten it more it wont index anymore.

I also took the primerpin and spring out of the primer slidebar assembly to see if there was any problems. After this procedure the first primer seats always normal, then they wont anymore. Also I have noticed after I have taken the spring and the primerpin off from the slide assembly the primerpin protrudes more, but after that first primer seating it wont protude as much anymore.

I have changed the primer slide spring also, but no joy. Any advice?

Regards. M