Ammunition weight is key. It impacts on the trajectory of the bullet and how well it penetrates the game.
However, it can be problematic to work out, insofar as two measurement systems coexist: the European system and the American systems.
In the United States, where distance is calculated in miles and temperature in degrees Fahrenheit, bullets are weighed in grains. In Europe, which uses the metric system, ammunition weight is given in grams.
Here are the facts you need to know to express in grams ammunition given in grains, and vice versa.
- 1 grain = 0.0648 grams
- 1 gram = 15.4324 grains
To convert into grams
So, to convert into grams the weight of ammunition given in grains, you just need to divide the value in grains by 15.4324.
Browning BXR 30-06Spr 155 grains
- 155/15.4324 = 10.04 grams
Browning BXS 300WM 180 grains
- 180/15.4324= 11.66 grams
To convert into grains
To convert into grains the weight of ammunition given in grams, divide by the other value, 0.0648.
Browning BXC 308Win 10.89 grams
- 10.89/0.0648 = 168 grains
Browning BXC 270 Win 9.40 grams
- 9.40/0.0648 = 145 grains
Remember these formulas so you can compare different ammunition weights efficiently and quickly.
Best of luck!