I know that Beman makes a 22" crossbow arrow called the Thunderbolt. Never used it though, as I shoot 20" GTs.

As for a good field point target, I've had the same Delta Dead Stop 5000 bag target for several years. The only thing I've had to do was change the outer cover on it. The bag and cover can be gotten from Cabelas. It handles my Excalibur shooting approx. 330 fps without any problems.