Rifle Barrel Free-Bore: What Is Free Bore: Free bore (aka: leade) is just that, it is the area ahead of the bullet ogive (throat) in a rifle barrel to which there is no rifling lands, once the cartridge is fired the bullet travels freely in the barrel until the bullets ogive contacts the lands of […]
Rifle Scope Mounting: How to mount a rifle scope — We will start from scratch here. A brand new remington 700 bolt action rifle, two piece windage adjustable scope bases, scope rings and a Leupold 3-9 scope–a fairly common hunting rig. Now let’s mount the scope on the rifle the right way to achieve the […]
30-06 Springfield History: The very popular 30-06 Springfield rifle cartridge was created by the U.S. military and commissioned into use in 1906. The 30-06 Springfield’s official military name is “Caliber.30, Model 1906, Mark 1.” The 30-06 was used in the bolt-action M1903 Springfield rifle, the bolt-action M1917 Enfield rifle, the semi-automatic M1 Garand rifle and […]
The below handgun ballistics chart will give true caliber and diameter of handgun cartridge bullet weight measured in grains, velocity measured in feet per second, energy measured in foot pounds–which also is a good indicator of handgun stopping power, and bullet trajectory measured in inches for the more popular handgun cartridges, (factory ammunition). This handgun […]
45-70 Ammo Ballistics This is a two part article. The top is a history on the .45-70 and ballistics chart, the second deals with Black powder .45-70 Government Rifles. The 45-70 dates back to as early as 1865 but it wasn’t standardized until 1873 when a U.S. Government contract was issued for several thousand Springfield […]
Here are a couple of free rifle target printouts for your use. Need some info on rifle cartridge ballistics? That link goes to our in depth chart.
The forcing cone in a shotgun barrel forces the shot charge or shot column down in diameter in transition from the shotgun chamber to enter the bore and then to enter the parallel section of the choke. The one we will concern ourselves with here is the chamber to bore forcing cone the other is […]
A choke tube is a removable interior tube at the end of a shotgun barrel that controls shot dispersion. Choke tubes typically come in cylinder, improved cylinder, modified, improved modified, full, and extra full. A cylinder choke tube produces a very wide shot dispersion, whereas an extra full choke tube will provide a much tighter […]
After doing a thorough pattern test and analysis it’s time to focus on how to increase pattern density and consistency, as both are needed for a complete shotgun pattern tuning. There is some knowledge worth having first as to what you are dealing with. A True Shot Pattern Is, 100% Of The Shot In A […]
Perhaps one of the most critical parts of shooting an imparticular load of shot out of your your shotgun at a patterning board is the fact you will also know its exact point of impact with your imparticular sight picture. You can have an excellent shot pattern but if it is not where your aiming then its not worth very much from a hunters or shooters perspective. Shot patterns are only part of the overall performance of a shotgun when shot patterning.