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Who can post the math formula to calculate how much recoil one will experience with a given rifle weight, bullet weight, bullet velocity, bullet caliber, and what ever else is involved? Thanks! D/R Hunter Correct bullet placement, combined with the required depth of bullet penetration, results in an anchored animal... | ||
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DR: The one I use can be found here: http://www.handloads.com/calc/recoil.asp Cheers, Cal _______________________________ Cal Pappas, Willow, Alaska www.CalPappas.com www.CalPappas.blogspot.com 1994 Zimbabwe 1997 Zimbabwe 1998 Zimbabwe 1999 Zimbabwe 1999 Namibia, Botswana, Zambia--vacation 2000 Australia 2002 South Africa 2003 South Africa 2003 Zimbabwe 2005 South Africa 2005 Zimbabwe 2006 Tanzania 2006 Zimbabwe--vacation 2007 Zimbabwe--vacation 2008 Zimbabwe 2012 Australia 2013 South Africa 2013 Zimbabwe 2013 Australia 2016 Zimbabwe 2017 Zimbabwe 2018 South Africa 2018 Zimbabwe--vacation 2019 South Africa 2019 Botswana 2019 Zimbabwe vacation 2021 South Africa 2021 South Africa (2nd hunt a month later) ______________________________ | |||
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Lots of people talk about "recoil energy" but few have heard of "recoil velocity" !! There have been some comments of shooters liking the 375H&H more than the 338Win ,even though the 338 has lower recoil enegry. The answer is that the 338 has higher recoil velocity . Perhaps someone has the formulas for both. | |||
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The formula for calculating the free recoil energy of a rifle is as follows: RE = (½ x (RW/GC)) x (((BW x BMV) + (PW x PGV)) ÷ (RW x 7000))^2 Where: RE = Free recoil energy in foot-pounds. RW = Rifle weight in pounds GC = 32.174 (the gravitational constant for earth in feet per second per second) BW = Bullet weight in grains BMV = Muzzle velocity of bullet in feet per second PW = Powder weight in grains PGV = 4,700 (a generally – although not universally - accepted constant for powder gas velocity in feet per second) 7000 = Number of grains per pound ^2 means "squared" Mike Wilderness is my cathedral, and hunting is my prayer. | |||
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I thank you all.  D/R Hunter Correct bullet placement, combined with the required depth of bullet penetration, results in an anchored animal... | |||
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What that formula does NOT take into account however, is the way that recoil energy is transferred to the body or in other words, "perceived recoil". The shape of the stock and how it fits the individual GREATLY influences how that energy is transferred. Take for instance, two rifles of the exact same weight, in the same caliber, shooting the same load. One has a 2" dowel for a buttstock, the other has a standard shaped buttstock with a buttplate that is 3" wide and 7" from top to bottom. Which do you think will be more pleasant to shoot, even though they are generating the exact same amount of recoil energy and velocity? This is one of the reasons I've always said that the fit of the rifle is more important than the weight of the rifle in terms of mitigating recoil. | |||
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Todd, they were right! You ARE a rocket scientist!!! :-) | |||
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My perceived recoil formula is as follows (RC500NE)+(TFL)+(RSISM500NEDRA)*3=DBRF+SOMJF RC500NE= Rifle Caliber 500NE TFL=Too Frack’n Light, if 500 NE Rifle weight less than 15 pounds RSISM500NEDRA= Rusty Suckered Into Shooting Mike’s 500 NE Double Rifle Again DBRFR= Dirty Brass’n Rass’n Frack’n Rifle SOMJF =Smile On Mike Jines’ Face  Rusty We Band of Brothers! DRSS, NRA & SCI Life Member "I am rejoiced at my fate. Do not be uneasy about me, for I am with my friends." ----- David Crockett in his last letter (to his children), January 9th, 1836 "I will never forsake Texas and her cause. I am her son." ----- Jose Antonio Navarro, from Mexican Prison in 1841 "for I have sworn upon the altar of god eternal hostility against every form of tyranny over the mind of man." Thomas Jefferson Declaration of Arbroath April 6, 1320-“. . .It is not for glory, nor riches, nor honours that we are fighting, but for freedom - for that alone, which no honest man gives up but with life itself.” | |||
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The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Double Rifles Recoil Energy Math Formula
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