Reamer questions for old 30-06

I would consider the 300 Sherman as well. It is nearly 11% gain over the std '06 with a .317" long neck. It will run right with a wsm and all the leg work is done with reamers and dies in stock. Use 270, 280. 0r 280 A.I. brass to easily form. Petersen brass is a great option.
I want to keep the 30-06 name in this for the most part for sentimental reasons.
But when I do my 7mm sherman Mega for those long beautiful 7mm. I'll be calling
 
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