I don't think so but then again faster might not be better in terms of damage concerns?? What bullet did you use to harvest your mulie, what range and shot location? More info you give the more you'll receive.

I hunt with a fella who uses a 300 RUM for everything (not a varmit hunter persaybut if yote presents itself he will shoot). He uses 180gr Nosler Partitions, I haven't seen any problems with this load from antelope to moose!