Can You Load "African" Rounds Light?

[.38 Special]

BTW, if you get yourself a copy of Dangerous Game Rifles by Terry Wieland -- who knows a thing or two about truly large guns -- he urges the reader to practice with his "big rifle" by using reduced loads.

 

[Jubjub]

An uncle of mine has a 9.3X74R double. The Continental medium doubles are fairly affordable, as these things go. He loads the 270 grain Speer, and the only load he found that shoots both barrels to the same point is a max load, something like 2300 fps. He has tried reduced cast loads, but they hit far, far apart.

One thing about doubles that I didn't realize until I shot his, is that with a cold gun, if you fire the left barrel, and then wait several seconds before shooting the right, the second shot will go right. The heat of firing will expand the first barrel, and that will bend the whole mess. But you fire in rapid fire cadence, the heat doesn't have time to travel from the bore through the thickness of the first barrel, and the second shot will go where it's supposed to.

 

[Maverick223]

Lots of Cape Buffalo and Lions where you live?

Do you own any MBRs or "assault rifles" and are there any wars going on in your neighborhood? Some people just like punkin' chunkers...I like a good punkin' chunker. Is there something wrong with wanting a .45 or .50 caliber sporting rifle?

 

[jglcolosprgs]

Originally Posted by dullh
Lots of Cape Buffalo and Lions where you live?

And the caption reads...

Honestly, Harry, I'll never tease you again for
carrying around that elephant gun!"


Many thanks to:
http://www.gahanwilson.com/index.htm

 

[Maverick223]

You never know when you might need a good big bore...there have been incidents with Elephants that were used to plow cotton fields in my neck of the woods. I like to be prepared.

Source: http://www.injuryhelpattorney.com/StrangeLaws.html

 

[JWF III]

The problem with large bore double rifles is they are regulated to shoot both barrels to a specific convergence point with a specific loading.

Convergence deals with windage only. It pertains to the angle between the two barrels. Most double rifles are built to converge at 75 yards (meters). But I'm sure some are different. To lengthen the yardage to convergence the breech of the barrels are brought closer together. To shorten it, they are spread apart.

It doesn't matter what knid of load is used. The theoretical point of convergence will be the same for any particular rifle. The only thing that will change is the elevation of the point of impact.

The POC is theoretical in all circumstances just because as a rifle fires, it will not fire every bullet in the exact same spot. A load that shoots a looser group will have a varying POC. If you take four rounds of the same 4 MOA ammo. At 75 yards (theoretical POC) you could conceivably have as much as a 6" group. And true POC could range from 25 yards to infinity.

Wyman

 

[Jim Watson]

It doesn't matter what knid of load is used. The theoretical point of convergence will be the same for any particular rifle.

The difference between theory and practice is, that in theory, there is no difference between theory and practice, but in practice, there is.

I have seen and read of numerous projects to establish a load that a double rifle will regulate with. It is not always or even often easy.