![]() Barrels can be made for an incredible number of calibers from different metals with varying finishes and twist rates. On some handguns, the backstrap is a solid piece while on others there are interchangeable pieces designed to make the gun fit better to the shooter’s hand size.īarrel: The hollow metal tube that a bullet travels down to exit the gun and impact a target. The ballistics of a bullet include but are not necessarily limited to, velocity, energy, and trajectory.īackstrap: The part of a handgun located at the rearmost portion of the grip, the backstrap is the part that makes contact with the palm of the shooter’s strong-side hand. (Photo credit: )īallistics: The study and science of a bullet’s path and performance immediately after firing.
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