At 50 yards I shot my personal best so far of .362" 5 shot group. Don't have many chances to shoot 100 yards but in the spring I hope to get to a range that I can use.
Marlin 17VS, CCI Ammo, Simmons 6.5-20x44mm (M1048) and using a Harris BR-Bipod (and a box of Remingto .45 ACP rounds for a rear rest :-D )
Many folks bash the 17HMR but for sheer fun it has to be one of my favorites so far!