Quote Originally Posted by Daryll View Post
CCI or Remington are fine....

CCI tend to be the hardest primers, but fine if you have factory hammer springs. Remington are slightly more sensitive if you've done any "tweaking" to the gun.
Thanks for the info Daryll. I'll stock up on the CCIs. I have just noticed the "carefully-worded" note on the old Auto Prime instructions which suggests that primers sold in larger packages might be thought of as more sensitive to explosion....... and the Federals do come in a much bigger box than the CCIs!