I think 60 - 75 yards max should do just fine. What kind of bullet are you using? The only concern I would have is whether the bullet will expand properly at lower velocities. If you are using the 250 XTP or 250 (non-bonded) Shockwave, either should expand well at those velocities and ranges, though I would personally go for the 250 XTP or better yet the 250 Deep Curl. A great option if you have the time to set it up would be the .40 cal 200 XTP with 60 - 70 grains of powder. Recoil is pretty much non-existant and I can personally attest to the fact that this bullet expands well at low velocities.