.45-70 Government vs 7.62x39mm Ammo Comparison - Ballistics Info & Chart
- Caliber Ballistics Comparison
- 07 Dec, 2018
The following ammunition cartridge ballistics information and chart can be used to approximately compare .45-70 Government vs 7.62x39mm ammo rounds. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, or jacketing type. As such, the following is for comparative information purposes only and should not be used to make precise predictions of the trajectory, performance, or true ballistics of any particular .45-70 Government or 7.62x39mm rounds for hunting, target shooting, plinking, or any other usage. The decision for which round is better for a given application should be made with complete information, and this article simply serves as a comparative guide, not the final say.
For more detailed ballistics information please refer to the exact round in question or contact the manufacturer for the pertinent information. True .45-70 Government and 7.62x39mm ballistics information can vary widely from the displayed information, and it is important to understand that the particular characteristics of a given round can make a substantive difference in its true performance.
As illustrated in the chart, .45-70 Government rounds - on average - achieve a velocity of about 1680 feet per second (fps) while 7.62x39mm rounds travel at a velocity of 2360 fps. To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps. That is to say, .45-70 Government bullets travel 1.9 times the speed of a 737 airplane at cruising speed, while 7.62x39mm bullets travel 2.7 times that same speed.
Furthermore, the muzzle energy of a .45-70 Government round averages out to 2270 ft-lb, while a 7.62x39mm round averages out to about 1590 ft-lb. One way to think about this is as such: a foot-pound is a unit of energy equal to the amount of energy required to raise a weight of one pound a distance of one foot. So a .45-70 Government round exits the barrel with kinetic energy equal to the energy required for linear vertical displacement of 2270 pounds through a one foot distance, while a 7.62x39mm round exiting the barrel has energy equal to the amount required to displace 1590 pounds over the same one foot distance. As a rule of thumb, when it comes to hunting, muzzle energy is what many hunters look at when deciding on what caliber of firearm / ammunition to select. Generally speaking, the higher the muzzle energy, the higher the stopping power.
Again, the above is for comparative information purposes only, and you should consult the exact ballistics for the particular .45-70 Government or 7.62x39mm cartridge you're looking at purchasing.
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