BudsGunShop.com - Long Bore .38

Philip, somewhat. The longer bore will give approximately 30 to 40fps higher velocity depending on the load for slightly more stopping power with the same rounds compared to the standard length barrel model.

Besides slight increase in velocity, it will also stabilize the bullet slightly more, and improve accuracy, very slightly, but honestly its a derringer and is meant to be a close distance, or deep concealment piece the increase in accuracy, and stopping power isn't going to be substantial enough to make any real difference