When I said I think of the 85 TSX/270 combo as an overgrown 220 Swift, it�s because that�s exactly how my Dad uses it. His two primary rifles are a Swift firing 55 Vmaxs and the 270 with 85s. They both have very similar trajectory/drift characteristics, so he can easily transfer from the pdog/coyote rifle to the deer/elk rifle and not have to think about different numbers.
I�ve done similar with my centerfire rifle selection. My hunting rifles all use similar bc bullets shot at similar speeds, so I simply grab the rifle suited to the game at hand and go. Makes for a quick and deadly killing setup.
