Recoil energy and 12.7fps recoil velocity. The formula SOUNDS complicated, but it's really easy once you simplify - it actually ends up exactly the same!!Your Rifles recoil Energy = Tables recoil energy / (your rifle weight/tables weight).So Chuck has an 8lb 30-06 firing 165grn pills at 2900fps with 20.1ft.lbs. It's a pretty straight forward formula:Your Rifles Recoil Velocity = Tables recoil velocity / (Your rifles weight/Tables rifle weight).Recoil ENERGY is directly proportionate to rifle weight, but proportionate to the square of recoil velocity - so if your rifle weight goes up 10% and your velocity goes down 10% as in the case above, your recoil energy goes down 9.1% (which is 1/110%). The same formulas below also work for figuring out what your rifle's recoil energy would be if you added or reduced weight.Recoil velocity is directly proportionate to rifle weight - so if your rifle weight goes up 10%, the recoil velocity goes DOWN 10%. So it's not really fair to say that a Remington 700 ADL would weigh the same 7.5lbs for all cartridges in which it might be sold.The not so simple answer is that you can readily calculate recoil velocity and energy of any rifle - but you do need to know the powder charge.The OTHER not so simple answer is that you can EASILY CORRECT CHUCK'S TABLE for your own rifle weight. Magnum cartridges tend to weigh 1/4 to 1/2 pound heavier still - often driven by a heavier barrel. A 7.5lb 243rem rifle might weigh 9.5lbs by the time you add a scope and sling.ALSO KEEP IN MIND: Even in the same model, a long action rifle generally weighs a half pound heavier than a short action model, due to the longer action. He totally missed the mark on most weights, however, since he seems to use 'empty weights' for the rifles, rather than 'gross vehicle weights' for them as they would be hunted - i.e. KEEP IN MIND: Chuck Hawk's picked his rifle weights counting on real world weights for different rifles.
Don't know how 'scientifically' he arrived at his figures, but they do seem to be ballpark-accurate imo.#2880203 - 11/08/15 12:23 PM Re: Rifle recoil tableFormer ModeratorRegistered: 02/04/04Posts: 15841Loc: Michigan. At any rate - much as I hate to give up the extra range and wind-resistance of a 6mm - I'll probably eventually go to a fast-twist.22/heavy bullet for longer range coyotes and varmints if the.243 'recoil' is too much of a distraction mine so far isn't as accurate as I feel it should be, anyway.Fwiw: Bob Forker puts out a book often seen in the big bookstores Ammo & Ballistics,that gives relative recoil rates of almost all (factory) rounds in percentage.
0 kommentar(er)
