Re: 7MM or 300 Dakota
With the 7/300 Dakota you should be able to push the 180 Berger's or JLK's around 3100 fps. Plus you utilize the high BC of the 7mm.
You might also research the 300 Jazz, it's a 338 Norma necked to .30 and Improved. It will push a 210 Berger to 3150 with a mild load. I'm looking at this cartridge for my next build, except pushing the 220, 240 SMK, or 210 JLK.
ACTIVE DUTY MARINE CORPS '96-'04
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Custom built 7mm SAUM