While watching TV and drinking my morning coffee I saw a commercial for a TSX, a 2012 Acura TSX. Apparently these TSX come one to a package, and they are fairly pricey at up to $35K each. I could find no report as to what velocity is required for proper expansion and/or if they are designed to double their diameter upon impact. No weights were listed and there was no report of weight retention following use. No reports on how it performs on game but it looks like it should perform well on small game. Although there was no mention if it was suitable for grizzly bear, I imagine there will soon be discussions if it is "big enough" for grizzly bear protection and/or hunting...perhaps if pushed to a high velocity and the shooter aims well and does his part. Accuracy/load development of this TSX is yet to be reported.