My best was with a 4 1/2 in barreled Ruger auto pistol, it really liked Winchester ammo. Even at 50 yds, with a set of Millet sights on it one could always hit what you were aiming at if you did it right. One windy day I decided to go squirrel hunting with the little pistol. After some time a squirrel on the ground came within range. The shot itself was unremarkable, I was aiming for the head. The squirrel fell dead instantly, like I expected it to. I couldn't for the life of me find an entry hole for the bullet, then I noticed a drop of blood at the back corner of the squirrel's eyelid. The bullet had gone in there without rupturing his eye. Since it was such a windy day, and with me using a pistol, mama expected me to come home empty handed, but I didn't. My brother couldn't believe the shot I'd made with the pistol.