CCI makes the A17 ammo. It was developed because the A17 Savage rifle did not cycle properly with regular ammo. CCI hopped the ammo up by 100 fps and the Savage cycles properly. The side effect of the A17 ammo is that it develops more than 100 extra fps in a bolt .17 HMR. Mule Deer reports velocity of 2800 fps or higher. It is also as accurate as the standard ammo and normally shoots to or close to the same zero as standard ammo.
