Thanks Buck! I appreciate all the info.

I met up with Mech8 this afternoon. He was kind enough to let me try his ammo and vis versa. His rounds, which fit his SSK barrel, will NOT fit my SSK chambered barrel. My loaded round fits his barrel just fine. I?m sending the barrel back to SSK tomorrow so they can figure it out. Mech8 and I were left with no doubt that my chamber is the culprit. Exactly what is wrong with it, we can?t t say with certainty, but it seems to be the neck. It has nothing to do with the bullet or how it?s seated and it?s not related to the case body or rim. Thanks again for the help everyone. I?ll update y?all once I know one thing for sure.