A-Frames, it seems, appeal to the 'gacker' in many people (and I am one). But, as Mule Deer pointed out quite long ago, they tend not to do anything the older, somewhat less expensive Partition doesn't do (with apologies for any errors I've made in paraphrasing). I haven't noticed the experiences he's related with them to be any different than what I've seen. Partitions tend to dig a bit deeper since they can shed their front core. A couple times when I've thrown Partitions and A-Frames of like weights at the same animal (moose) the Partitions have penetrated more.
Pardon my being partial to the 250 gr a-frames, I fell into about 900 of them at a very attractive price, and they have shot great in 4/5 different 338 WM's I've had over the years.
