There was a post on ARFCOM a few weeks ago by a person who called CCI and was told that the two primers are identical and there is no technical reason not to substitute one for the other.
Now that I'm about to run out of SP-mag primers, I may need to use SR primers in my .357 mag loads.
Is anyone here substituting these primers, and if so, how's that working out for you?
Now that I'm about to run out of SP-mag primers, I may need to use SR primers in my .357 mag loads.
Is anyone here substituting these primers, and if so, how's that working out for you?