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How to Find Ballistics on a .270 WSM

Each bullet in the Winchester Short Magnum family of ammunition, abbreviated "WSM," has different ballistics. Ballistics is the collection of scientific measurements of a bullet's flight, including speed, distance and energy. The .270 WSM is rifle ammunition manufactured by Winchester Repeating Arms. To find the ballistics of .270 WSM ammunition, consult Winchester's ballistics chart.

Instructions

- 1
  Go to Winchester Repeating Arms' website.
- 2
  Click "News and Information Articles."
- 3
  Click "WSM Ballistics" to view the ballistics chart for the Winchester Short Magnum family of ammunition.
- 4
  Locate the type of .270 WSM ammunition for which you want to view the ballistics under the "Caliber" category. The three types of .270 WSM ammunition are .270 WSM, .270 Win and .270 Wby Mag.
- 5
  Read the chart from left to right to view the bullet's ballistics. The bullet weight is the weight of one bullet. The overall cartridge length is the length from the base of the bullet to the tip. The muzzle velocity is the speed at which the bullet is fired and is measured in feet per second (fps). As the bullet flies through the air, it falls toward the ground. The trajectory is the change in the bullet's height once it travels 300 yards. The muzzle energy is the measurement of force at which the bullet is fired and is measured in foot-pounds (ft. lbs).

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