I like to use the same arrow for both targets and hunting--keeping it simple works better for me.

I'm not schooled on carbon--not much help there. Just be sure your over-all arrow weight (grains per lb--not grains per inch) is around 8 gpp or more. For a 50lb draw, you want a finished arrow that weighs at least 400 grains or more. This will give you a quieter shot and less vibration.

Chad