Of all the wmr I have shot over the years they all seem to perform the same on Charlie except one!
CCI, S&B, Federal 50g, PMC, Remington and Winchester all behave the same.
The Federal 30g SPEER TNT are the best on Charlie.
Forget bang flops with WMR but with that Speer TNT hollow point it comes close. ( You do get some bang flops occasionally, just not always but they don't go far).