Colorado eh!!!!
You need a conical shooter - so if don't want to use Powerbelts and/or take a chance on your new fast twist inline shooting heavy conicals(+400 gr.)properly, then perhaps you should stick with a sidelock for hunting inside your state.
There are two I will recommend. One is the Lyman Deerstalker -- the other is this one below. All you need to do is decide what caliber .... ie... 50-54-58 with the Renegade. The Lyman comes in 50 & 54.. Both the Deerstalker and Renegade shoot conicals real well.
http://www.foxridgeoutfitters.com/detail.cfm?section=16&subsection=149,175&p roduct=3504