Differences in recoil if you aren't running a brake (I won't, on a hunting gun) are substantial between a 7mm 180 and a 6.5 140. Shooting pointed 130s at 3300fps is something I recall scenarshooter Pat doing, and that's tough to compete with.
That being said, I think both cartridges make a lot of sense. The 6.5 SAUM I had was pretty deadly on animals, and I'd like to build another.
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