Looks like I am gonna do the 358 on my M7, and if that doesn't have enough oomph, I can always have it rechambered to a 350 mag.
Saying that a 358 doesn't have enought "oomph" and going to a 350RM would be like going to a 30/06 from a 308. Prolly won't get you a whole heck of a lot more for the effort.
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