It looks like a heck of a bullet. I could see it being worth the expense in say, a 45-70, but let me ask you- and I am honestly not trying to be a wise guy or anything- but in a .45 Colt, and i assume you are talking about something like a Blackhawk like mine are, would a good hard cast bullet serve just as well? My two current loads for my Blackhawks are a Leadhead 270gr. Keith over 9.0gr. of unique at about 950fps. + or- is my everyday working load. The last deer I used it on was a smallish, 120lb. whitetail doe, smashing the on side shoulder and coming out through the ribcage upon exit.
My other is my "Heavy Load" is a Cast Performance WLNGC 335gr. over 22.5gr. of H110 at about 1180 fps. I have not used this load on anything yet but I think it would go clean through just about anything you would use it on.
I guess my point is that you may be able to get the job done about as well with a lot less expense.
Having said all that, I really want to try those Belt Mountain Punch bullets in my 45-70 Guide Gun. What have you used them in? How have they worked for you?
Bill Henderson