I have 3 crossbows. A Horton 150 lb compound, an Excalibur Vixen 150 lb recurve and an Excalibur Equinox 225 lb recurve.
I shot two deer last year with crossbows, the Horton took one and the other with the Vixen.
I am pleased with the penetration of the Vixen. Complete pass through and the deer was dead by the time I got down from the tree. Both lungs.
The Horton I used a carbon bolt which shattered and the deer ran off and crawled under a brush pile. about 45 minutes later I search for it and was standing on the brush pile when the deer crawled out and ran. It fell down about 100 yards farther away and died. Arrow appeared to go through rib and puncture one lung and fell out broken. I think I will stick with aluminum arrows for hunting once I use up the carbon ones.
Using a rope cocker on all three crossbows, the Equinox is a bitch to cock due to weight and draw length but I am sure it will have good penetration. When I'm hunting I only have to cock it once anyway.
The Excalibur recurves are simple. No bow press needed to change the string, can be unstrung for year end storage and string replacement take a minute. Compound crossbow string and cable replacement is another thing.
I have scopes on all of mine and they are accurate as all get out. My brother has been hunting with a compound bow for years and we went out target shooting he with his bow and me with a crossbow and I could outshoot him from twice the distance all day long.
I bought all of my crossbows online, the Excaliburs from a dealer or two on ebay and saved over $100.00 that I would have paid from any other source. A couple of vendors who may have them on ebay are Poor Fish (?) and American Archery. I also buy most of my arrows from ebay vendors unless I pick some up at a local sports dealer who has decent prices.
Excalibur is highly recommended on many crossbow forums. Barnett may be cheap but most warn against buying from them due to problems and customer service with warranty issues.
http://www.excaliburcrossbow.com/phpBB2/index.php?sid=cf2c0c5a10bc28aad09c20ce6799bf53
http://www.michigan-sportsman.com/forum/forumdisplay.php?f=117