The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores .416 Dakota RecoilGo | New | Find | Notify | Tools | Reply | |
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Can anyine please tell me how's the recoil on a .416 Dakota in comparison to a .416 Rigby?? I am planning on building me one and must choose between the dakota and a local wildcat .458, the .458 Sabi wich is a 500 Jeffrey case necked down to .458 with a 40 degree shoulder and it kicks the living daylight out of you!! The sabi proppels a 500gr bullet at 2550fps and the dakota a 400gr bullet at 2550fps. | ||
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Lourens, According to this recoil chart, the .416 Dakota kicks a bit more than the .416 Rigby. A basic formula for recoil calculation is (bullet weight + powder charge weight) X weight of rifle / weight of rifle X 8 George  | |||
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George What uints are you using? Might make a big diffrence. Dr B | |||
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In the basic formula, it's grains for powder charge and bullet weight, and pounds for rifle weight. BTW, that is not my formula; it's one I've seen in gun rags and on the 'net. George | |||
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Both formulae work out to almost exactly the same value, at least for my .470 Capstick. George | |||
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It is basically equating the bullet and powder velocity and weight to the gun weight and hence its velocity. There is probably some jet effect of the gas leaving the barrel, as I do not calculate it to the same numbers as they do. e.g., 400 gr. bullet, 2400 ft/s, 70 gr. of powder, 7.5 lb. rifle: (400/7000)2400 + (70/7000)2400 = 7.5V V= 21.5 ft/s (I think recoil calculator gives 23 ft/s). Recoil energy = (0.5/32.17)(7.5)(21.5)^2 = 54 ft-lb (recoil calculator gives 66 ft-lb) ------------------------------- Will / Once you've been amongst them, there is no such thing as too much gun. --------------------------------------- and, God Bless John Wayne. NRA Benefactor, GOA, NAGR _________________________ "Elephant and Elephant Guns" $99 shipped. “Hunting Africa's Dangerous Game" $20 shipped. red.dirt.elephant@gmail.com _________________________ If anything be of note, let it be he was once an elephant hunter, hoping to wind up where elephant hunters go. | |||
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