Even though I once owned a 317 and think its a good choice to carry and shoot critters at short range the negative is I could never shoot one accurately beyond about 10 yards or so, If a rabbit, grouse, etc was 25 yards away it was home free. Lightweight has it disappointments. Am much more confident with my Beretta Bobcat even with it's basic sights.
The 63 is easier to shoot "better". Some weight is good. The SP101 4 inch is even better. 617 4 inch beats them both. The compromise for me is the lighter I go the less accurate my shooting if the distance is roughly 10 yards or more.
