[royinidaho]

I'd pick your #7 and give you very high marks for your concern. You're asking all of the right questions and getting some good answers.

Flat looking primers are difficult to judge as some manufacturer's primers are softer than others. You mentioned that you had no extraction problems which is a better indication of pressures.

Createring on the primer around the firing pin indent, of which you have none, is another indication of pressure but is dependent on fit of firing pin to firing pin hole in the bolt.

Not exactly sure of what you mean by the first part of #6? However, the primer should never (as in Never) protrude above the case head. The bolt will press it in. If the bolt 'slams' as in a semi-auto you may have a whole nother problem. Not good. Think about it.

It may be that your chamber is a bit on the large size at the back end. If you full length resize with dies that are smaller than the chamber diameter you'll work the cases a bit excessively. Just another interesting thing to learn.

You're headed in the right direction, keep on truckin'