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4 & 8 Bore Rifles

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31 January 2002, 03:44
POSEUR
4 & 8 Bore Rifles
I am curious as to what the muzzle engeries for the 4 bore and 8 bore rifles are. Does anyone know? From what I have read these two were the quinessential elephant guns of the black powder era and were in turn replaced by the 450 NE and 500 NE.

Thanks,
Casey

31 January 2002, 05:15
500grains
A 4 bore shoots an 1882 grain conical bullet at 1300 fps.

An 8 bore shoots a 1200 gain conical at 1300 fps.

I think that momentum (mass x velocity) and bullet diameter are more important than kinetic energy (mass x velocity squared) when looking at big bores. For animals above 300 pounds, energy seems relatively unimportant.

31 January 2002, 07:16
Wildcatter
I have a real love for these old behemoths. I really want to build an 8-bore single shot someday.

Seifred says that the old heavy 4-bore, 16 dram loading yeilded closer to 1500 fps with that big conical. What a stomper!

The 1250 grain conical in the 8-bore could also acheive similar speeds.

To answer the question:

4-bore: 1882gr @ 1500fps = 9405fpe

8-bore: 1250gr @ 1500fps = 6247fpe

All that horsepower with blackpowder,...amazing isn't it?

Have fun, and if you decide to build one, let me know,

-Catter


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Shoot the largest caliber you can shoot well, and practice , practice, practice.

31 January 2002, 11:27
700 nitro
hello all i am new here so bear with me


i have both of these calibers and both a are extreamly effective when used correctly

remember its better to have a 8 bore ball placed correctly than to have a 4 bore ball in the animals hams.anyways


i have 1 8 bore it is a double 8 made by october country i am haveing a second 1 made by a gun smith a i know it will be a 8 bore german jeager rifle flint lock with a 30 inch tapered barrel and figured walnut.

the 4 bore is a german jager configuration i use a 1380gr round ball with 450grs of fg powder it is a .989 its not a true 4 bore but close enough.

i am also having a 2 bore made by the same smith it shoots a 3500gr round ball with a 500gr charge of fg powder.

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black powder rules

[This message has been edited by black-powder-big-bore (edited 01-31-2002).]

31 January 2002, 12:33
POSEUR
Black Powder,

What kinda muzzle velocities do you get with those cannons? Also, what is the recoil like? I know that my 58 cal Springfield can kick pretty good with a stiff charge of ffg.

Casey

31 January 2002, 13:06
500grains
black powder dude,

I would love to see you shoot those rifles, but I would be a bit afraid myself.

31 January 2002, 17:09
416SW
Someone posted this site in another thread thought you guys might be interested.
A beautifull looking double this guy has made

http://african-hunter.com/site/firearms/4bore_part01_01.htm

[This message has been edited by 416SW (edited 01-31-2002).]

01 February 2002, 10:40
700 nitro
the 4 bore gets 1475 fps with 437grs of fg powder.

the 8 bore gets 1575 with 300 grs of ffg powder.


recoil is stiff but not really that bad

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black powder rules