Suppose that "assault weapons" (by whatever definition) are going to be restricted/banned soon. If you had to pick one semi-automatic removable magazine gun to buy while it's still legal to (and then report the usual boating accident), what would you pick for a ten-year interregnum? AR- platform in 5.56 just because of how common parts and ammo currently are? Or is 6.5 the wave of the future? Or something else?
I HOPE this is a hypothetical...