I sight my 2X scoped S&W 657 using the front of my rifle rest. Fire for group and zero at 25, 50, and 100y. The pistol shoots like a laser. I then practice, free hand, forearm on a post, and rested in the woods. I then know what I am capable of, and hunt within those limitations. Practice in real world conditions is where the skill is developed. I have enough confidence to shoot at deer at 100y or less. I have expended a lot of ammo to develop this. Practice is the key.