Quantum Singularity
New member
Is there a website that charts the recoil of various loads in various calibers? If so, could you provide me a link?
Handgun Recoil
- Thread starter Quantum Singularity
- Start date
I'm not sure if this is what you are looking for, but I'll pass it on just in case:
http://www.realguns.com/math/cal3.htm
Good Luck...
Joe
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Go NRA
http://www.realguns.com/math/cal3.htm
Good Luck...
Joe
------------------
Go NRA
Quantum Singularity
New member
This site assumes we know the powder amount that factory loads use...most don't even put that on the box.
Is there a site that has a pre-made table that estimates recoil from various cartridges in different guns?
Is there a site that has a pre-made table that estimates recoil from various cartridges in different guns?
Quantum Singularity, There IS a formula that takes into account the velocity of the ammo, weight of the bullet and weight of the gun -- I remember reading it in a gunrag YEARS ago before I got married and BEFORE my sister-in-law did some uninvited spring cleaning for me. I've asked this question before and a lot of members responded but to the best of my memory, all of them require the weight of the powder which is a mystery for me as well. FUD.
Hi, guys,
In calculating recoil, the weight of the powder charge is needed because the powder itself, and the gas its burning generates, is part of the moving mass and hence causes part of the recoil. For factory ammo, simply pulling a bullet and weighing the charge will get the powder weight, or any reasonable guess (52 grains for a .30-'06, for example) will be close enough.
Jim
In calculating recoil, the weight of the powder charge is needed because the powder itself, and the gas its burning generates, is part of the moving mass and hence causes part of the recoil. For factory ammo, simply pulling a bullet and weighing the charge will get the powder weight, or any reasonable guess (52 grains for a .30-'06, for example) will be close enough.
Jim
I think we did hash this out pretty good about a month ago:
[Link to invalid post]
I certainly will own up to being the guilty party who did way too much calculating.
The recoil energy estimates that I found seemed to be attempts to calculate the "free recoil energy" which is the energy the gun would have moving backwards if it were free to do so. The units are ft-lbs, same as the bullet going forward.
The math and physics are actually very straightforward, but to do it properly you do need to have, in addition to the mass of the bullet and its velocity:
1) the mass of the gun
2) the mass of the powder charge
3) the effective velocity of the powder charge as it exits as gas and particles
Because 3) is hard to know, what is normally done is to introduce a fudge factor K which is multiplied by the bullet's velocity and the mass of the powder to estimate the momentum of the powder. With rifles it seems also common just to use one constant for the effective velocity of the powder.
HTH
the HumpMan
[Link to invalid post]
I certainly will own up to being the guilty party who did way too much calculating.
The recoil energy estimates that I found seemed to be attempts to calculate the "free recoil energy" which is the energy the gun would have moving backwards if it were free to do so. The units are ft-lbs, same as the bullet going forward.
The math and physics are actually very straightforward, but to do it properly you do need to have, in addition to the mass of the bullet and its velocity:
1) the mass of the gun
2) the mass of the powder charge
3) the effective velocity of the powder charge as it exits as gas and particles
Because 3) is hard to know, what is normally done is to introduce a fudge factor K which is multiplied by the bullet's velocity and the mass of the powder to estimate the momentum of the powder. With rifles it seems also common just to use one constant for the effective velocity of the powder.
HTH
the HumpMan