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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

NitroX
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Reged: 25/12/02
Posts: 39249
Loc: Barossa Valley, South Australi...

Re: Some recoil stats for discussion
26/08/14 07:35 PM

Momentum long from: Gun velocity = (bullet mass x bullet velocity) + (powder charge mass x powder charge velocity) / Gun mass x 7000. Then, plug the now known Gun velocity into the translational kinetic energy formula: Recoil energy = Gun mass x Gun velocity2 / 2 x dimensional constant.

Example:
Firearm: Mauser 98 chambered in 7 x 57 mm Mauser weighing 10 pounds.

Projectile: spitzer type bullet weighing 140 grains with a muzzle velocity of 2700 feet per second.

Powder charge: single base nitrocellulose weighing 42.5 grains with a powder charge velocity of 5200 feet per second.

8.557 ft/s = (140 x 2700) + (42.5 x 5200) / 10 x 7000.

Then, plug the now known Gun velocity of 8.557 feet per second into the translational kinetic energy formula:

11.38 ft-lbf = 10 x 8.5572/ 2 x 32.163.

Momentum short form: Recoil energy = {[ (bullet mass x bullet velocity) + (powder charge mass x powder charge velocity) / 7000]2} / Gun mass x 2 x dimensional constant.

Example, same as above:

11.38 ft-lbf = {[ (140 x 2700) + (42.5 x 5200) / 7000]2} / 10 x 2 x 32.163.

Powder Charge Velocities

Typically the charge velocity are:
Black powder: 685.8 m/s (2250 ft/s)
Pistol and Shotgun powder: 1707 m/s (5600 ft/s)
Rifle powder: 1585 m/s (5200 ft/s)
BMG powder: 1433 m/s (4700 ft/s)

However these charge velocities are approximations.

http://guns.wikia.com/wiki/Recoil_energy

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John aka NitroX

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Subject	Posted by	Posted on
Some recoil stats for discussion	NitroX	26/08/14 03:08 AM
Re: Some recoil stats for discussion	NitroX	26/08/14 03:11 AM
Re: Some recoil stats for discussion	NitroX	26/08/14 03:16 AM
Re: Some recoil stats for discussion	NitroX	26/08/14 03:18 AM
Re: Some recoil stats for discussion	Rockdoc	26/08/14 07:22 AM
Re: Some recoil stats for discussion	NitroX	26/08/14 07:24 PM
Re: Some recoil stats for discussion	Ripp	27/08/14 03:03 AM
Re: Some recoil stats for discussion	9.3x57	26/08/14 08:28 AM
Re: Some recoil stats for discussion	NitroX	26/08/14 02:57 PM
Re: Some recoil stats for discussion	Rockdoc	26/08/14 03:43 PM
Re: Some recoil stats for discussion	Mike_Bailey	26/08/14 06:04 PM
Re: Some recoil stats for discussion	Well_Well_Well	26/08/14 07:05 PM
Re: Some recoil stats for discussion	NitroX	26/08/14 07:16 PM
Re: Some recoil stats for discussion	Well_Well_Well	26/08/14 07:23 PM
Re: Some recoil stats for discussion	mauserand9mm	26/08/14 07:40 PM
Re: Some recoil stats for discussion	tinker	27/08/14 03:10 AM
Re: Some recoil stats for discussion	Kano	27/08/14 04:33 AM
Re: Some recoil stats for discussion	Kano	27/08/14 04:58 AM
Re: Some recoil stats for discussion	gwh	27/08/14 09:29 AM
Re: Some recoil stats for discussion	chuck375	17/11/14 10:57 AM
Re: Some recoil stats for discussion	chuck375	12/03/15 01:35 PM
Re: Some recoil stats for discussion	CHIP	12/03/15 03:44 PM
Re: Some recoil stats for discussion	mckinney	13/03/15 03:02 AM
Re: Some recoil stats for discussion	chuck375	13/03/15 12:26 PM
Re: Some recoil stats for discussion	bigdog	01/09/14 12:47 AM
Re: Some recoil stats for discussion	Mike_Bailey	01/09/14 05:44 PM
Re: Some recoil stats for discussion	Rockdoc	01/09/14 07:33 PM
Re: Some recoil stats for discussion	gwh	01/09/14 11:54 PM
Re: Some recoil stats for discussion	bigdog	02/09/14 12:56 AM
Re: Some recoil stats for discussion	bigdog	02/09/14 01:22 AM
Re: Some recoil stats for discussion	bigdog	02/09/14 01:32 AM
Re: Some recoil stats for discussion	bigdog	02/09/14 01:51 AM
Re: Some recoil stats for discussion	xausa	02/09/14 05:00 AM
Re: Some recoil stats for discussion	mauserand9mm	03/09/14 09:16 PM
Re: Some recoil stats for discussion	DarylS	04/09/14 12:14 AM
Re: Some recoil stats for discussion	Mike_McGuire	02/09/14 10:16 PM
Re: Some recoil stats for discussion	NitroX	26/08/14 07:26 PM
Re: Some recoil stats for discussion	NitroX	26/08/14 07:35 PM
Re: Some recoil stats for discussion	NitroX	26/08/14 07:38 PM
Re: Some recoil stats for discussion	NitroX	26/08/14 07:43 PM
Re: Some recoil stats for discussion	Rell	26/08/14 09:58 PM
Re: Some recoil stats for discussion	NitroX	26/08/14 07:20 PM

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