If you compare ballistics of a 22mag and a 17 they are about the same ft lbs. but the 22mag dosnt lose energy as fast at longer range. Most gun dealers dont think the 17 will be very popular because the ammo price wont drop until Hornidys patent is up and every one else makes the ammo. Ive talked to 4 people now who have used the 22mag ballistic ammo and say its good.