Yes they are clipping right along out of all the AM wildcats, heavy too [img]/ubbthreads/images/graemlins/grin.gif[/img]!!
I have always been upfront about these rounds being designed specifically for big game hunting which for this purpose, shooting volume is generally quite low.
There is no other way to look at these rounds. TO get X amount of performance you need a certain amount of powder and pressure. Our performance goals for these rounds were extreme to begin with and as such we knew that the throats in these rifles would not last 2000 rounds. That said we did everything possible to increase throat life as much as possible by using stainless 3 groove barrels designed specifically for wildcats. We also use the very slow burnign ball powders which offer longer barrel life over stick powders because of lower flame temps and less friction as the powder passes through the throat of the chamber.
Still, even with all this, I would say they are 1000 to 1200 round rifles for big game hunting purposes. It all depends on how you use them and how you care for the barrel. If you abuse them you will get about 400 rounds of throat life. If you take care of them you will get 1000 rounds through the 257 AM easily and still be able to hammer a whitetail at 600 yards.
The larger caliber Allen Mags are certainly more bore friendly and I would say they will get you 1200 rounds of top level big game hunting accuracy before needing either a barrel set back to new pipe installed.
Here are a couple pics of the rifle so you can see what she looks like. With a #5 contour barrel, that 30" looks pretty skinny on the end and in fact it IS!!!