If you are not a reloader, then by all means consider the LeverEvolution from Hornady. I have talked to several people here in Wyoming this hunting season that have used it and love it. One gentleman was waiting to get his mulee and antelope into the processing joint. His antelope was at 145yds and his mulee was at around 135yds according to his Nikon rangefinder (oh daddy wants). Both were one shot one kill, said the mullee dropped in his tracks, the goat went about 20yrds before keeling over.
I personally have no experience with these bullets but the theory on them seems solid, and all of the reports from people I know and don't know, have been positive...both from levers and wheelies.
Noidster