ADUI13:
I don't have the land or cooperative range facilities that would let me try that kind of test myself, so I've had to pay close attention to balistic geletin tests and slaughterhouse results.
I also do not load my own ammo yet, so I won't be any use on that subject.

But I've heard that wet newspaper can give you a decent idea of how violently it will expand. Hope this helps. If you do conduct the tests yourself comparing the 147g to the 115g, I would be very interested in pictures.

Keep 'em all in the Bull.