The pellet weight and the fps are the variables. The calibre isn't necessary. The calc. between the grain and the speed gives you the info regardless of calibre. Its good for .177, .22 and others. Same maths.Originally Posted by deadeye dick
Damned if I know
The pellet weight and the fps are the variables. The calibre isn't necessary. The calc. between the grain and the speed gives you the info regardless of calibre. Its good for .177, .22 and others. Same maths.
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