That's not bad to start off, but it should do that at 100yds after it's broke in good and with the right ammo, you have lots more more ammo to try tween CCI, Rem, Hornady, Federal and Winchester, both in 17gr and 20gr, Vmax, FMJ, TNT, Gamepoint and XTP, just don't buy too much until you know what works good, then buy more of the same lot#.
Tim