The goal isn't to have a "high percentage" of animals recovered. It's to recover all of them. Without a good exit wound, there's no way you can be sure of that. An exit wound also speeds the animal "dropping" since it facilitates blood loss.
I have yet to hear a single reason why one would want to use the failure prone Bergers instead of the many reliable bullets that are readily available.
How does a bullet fail, when it simply does what it's designed to do?
Ping pong balls for the win. Once you've wrestled everything else in life is easy. Dan Gable I keep my circle small, I’d rather have 4 quarters than 100 pennies.
