Allan i agree i had a look at the american club sites. i found some interesting things, i only saw 2 pics of prone and 3 pics of standing with the jackets the rest were all ft sitting. i also found some results and tell the whole story.
the highest that i found was 26/40
you would think that if they battle make it easier,
Piet: The formula to work out energy for airguns, arrows, big rifles, where you have the weight in grains and the speed in ft/s is:
Energy in ft lb =M x V x V/450240
The actual formula is a metric formula where weight is given in kg and velocity in m/s. If you do the conversion to ft lb where you have the velocity in ft/s and the weight in grains and depending on how you round of your calculations as you proceed, you get to the dividing factor of 450240
So: 8.4 grains at 800 ft/s =
8.4 x 800 x 800 / 450240 = 11.94
If you have 20 ft lb reverse the calculation:-
20 x 450240 / 8.4 = 1072000 which is the velocity squared. The squareroot of this = 1035.37 ft/s.
Hope this will help you in your quest for ever increasing perfection. !lol :blueyes
You go for it. I will not change my rifle to suite the Yankies, not in this life. If I had a rifle with that power, yes I would participate for the fun, but I will not change my whole FT set up just to please them and I don't think the rest of the damn world should either. Let them shoot their own "Worlds" next year, let's see how they like it. I should have been a Yankee, always being upstream.