While I've never liked the 7mm Mag, I do like the .280 with decent handloads. The 7mm mag will exceed the 280 by about 100fps, so that puts it in the same group.

I'd not feel undergunned with the standard .280, so the 7mm mag. should be a modicum better - still don't like the round, though. Damn belted cases - short or long - we hates 'em. I have a couple, but still hates 'em.