Well Charliehorse,
You seem to have plenty to work through now. A few more things I neglected to mention but will now add to the heap.
First, hand primer tools can seat the primers not quite straight in the case. After the initial seating I have always rotated the case 180 degrees in the case and applied a little more pressure. Often you will feel the primer seat a smidgen (to use a technical term) further. This will take some dexterity to stop the next primer feeding but is easy to master.
Second, if you are full length sizing only size enough to ensure that the case chambers freely. Your die may not contact the shell holder but this is fine.
And finally, to climb aboard one of my favourite hobby horses, if you can chronograph your loads this will give you a good understanding of pressure. If your velocities are close to the Hodgdon data (after adjusting for barrel length) then your pressures will be also.
You have been blessed with an interesting cartridge. Enjoy it.
Grandpamac.
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