RE: Crossbow conversion
Note that paintball is one option, but I"m talking about the AIRGUN option. Where the thingy shoots 0.22 pellets.
At 600-700 fps, it's matches a good air rifle. I guess a CB can do much better.
And consider more substantial bullets. If the CB can deliver a 400 grain arrow at 350fps, at the same energy it will send a 100gr bullet at 700fps, and a 40gr at 1100fps. that's exactly a 0.22LR performance.
Getting interesting, isnt it?
It can be used for practice, for small game and for plain plinking.