The difference in shotgun primers arises from the chemical composition of the primer compound that is found within the primer cap. Depending on the composition of this primer compound, the velocity of the shotgun shell can significantly increase or decrease.Know More
A study conducted by Tom Armbrust on how different primer compositions affect the overall velocity of shotgun shells found that there is a pressure variation between shotgun shells made by Federal, CCI, Winchester, Remington and Cheddite of nearly 2,640 pounds per square inch. This change in pressure changed the velocity of the shotgun ammunition by nearly 34 feet per second, with Federal primers causing the highest velocity, followed by CCI, Winchester, Remington and finally Cheddite. This suggests that the chemical composition of primers created by different manufacturers increases or decreases the velocity of the shotgun ammunition being fired.
Although the composition of the shotgun primer can vary depending on the manufacturer, all shotgun shell primers are labeled as No. 209. A shotgun shell primer is also significantly larger than handgun and rifle primers, which account for the larger base of the shotgun shell. Additionally, the base is also shaped differently than rifle and handgun primers due to the "battery-cup" design of the shotgun shell primer.Learn more about Physics
Simple machines have few or no moving parts while complex machines are composed of two or more simple machines working together as a single mechanism. Both types of machines make it easier to perform a task.Full Answer >
Kinetic energy is contained in a moving object, while potential energy exists in a stored form. Potential energy can be changed into kinetic energy. Potential energy is ready for release, while kinetic energy is already doing work. The property of a body determines the type of energy it contains.Full Answer >
Systematic error is a series of errors in accuracy that are consistent in a certain direction, while random errors are those which are caused by random and unpredictable variation in an experiment. Generally, systematic error is introduced by a problem that is consistent through an entire experiment. Random error is statistical fluctuations that are introduced by imprecision in measurement.Full Answer >
Heat capacity is the amount of heat needed to change the temperature of a substance by 1 degree Celsius, while specific heat is the heat needed to change the temperature of 1 gram of substance by 1 degree Celsius. Whereas heat capacity is dependent on the amount of substance, heat capacity is independent of it.Full Answer >