I shoot Horton Aluminum Lightning Strike MX 20" bolts. I have them refletched with some AAE Elite 4" vanes. Really hard to say what bolt is best. Same as saying what broad head is the best.Depending on your bow and setup will determine what your bow likes to shoot. Some prefer aluminum, some carbon and you have a large selection of options for both of them.

You can shoot fixed or mechanical broad heads on your xbow. Iwas using Muzzy 3-blade last yr but going to try the Slick Tricks this year I believe.

There is a crossbow section here, can take a peek in there looking at some previous posts or do a search. Lots of great people and useful info to be found.

Dave