I found the Hornady ammo on a website and the prices were as follows

Hornady 17 Caliber (.172) 25gr HP Bullet, 100 per box $12.83

Hornady 17 Caliber (.172) 25gr HP Moly Bullet, 100 per box $16.29

looks like the ammo is going to be pretty cheap to me. I can't wait to get my hands on one.