can\'t decide 6.5wsm or 264 wm I'm building a long range switch barrel rifle out of a Savage 110 with the large shank. The 1st and original barrel is 300rum. I will be developing loads for the 220 or 240gr SMK 2nd barrel I wanted to go with 6.5 in a 140 or 142 gr match bullet. at 1st I thought of going 6.5-284norma, but because of my controlled feed mag bolt and the mag is ultramag size I am considering a wildcat 6.5wsm, What would be the best way to go here? any help would be appreciated. Also if I do go 6.5wsm how hard would it be to neck down 270wsm brass?