RE: A couple more Powerbelt tests
They look good for the situation they were shot in, but I think it highlights some of the issues people have encountered with PBs. Imagine you tried to shoot a hotter load, or took a 20yd shot. While they are widely expanded and devastating now, it appears like a little more velocity or a little less range could cause them to begin disintegrating.
I like full expansion, but I like to see the base of the bullet hold together well. When I start seeing the bullet expanded all the way to the base, I know I'm nearing the point of bullet failure.