can you rebarrel a 43 egyptian rolling block to 45-70 cal?

Answer 1

I for one would not even try it.
It would be far wiser to invest your money in a new or used 45/70 as to wasting so much money in trying to convert an interferer design to a 45/70.
If you were able to achieve this conversion, you would most likely never be able to recover your investment up on resale.
The action was not designed for that much pressure.

I have a 45/70.
Stop to consider that few modern 45/70 like the Ruger Number 1 can take the full maximum charge of the 45/70.
I have a Thompson Center Encore in 45/70 and it can not take the maximum charge 45/70 with out possible rupture.

I know this because I reload and Called Thompson Center Arms, and was told not to exceed 28,000 cup pressure.

The old Trapdoor 45/70 is held to 21,000 cup pressure.

Where as the Ruger Number 1 operates at 35,000 cup pressure.

My reloading manual has 3 separate sections of reloading data on 45/70 because of the different weapons available.

I have seen factory ammo clearly state on the box of 45/70 NOT FOR USE IN TRAPDOOR ACTIONS because it exceeds the 21,000 cup pressure.

D58



Hunting with Rifle, Pistol, Muzzle loader and Bow for over 3 decades.
Reloading Rifle, Pistol and shotgun for over 3 decades.

Answer 2

I will have to disagree with you on this one JD, Both the 45-70 and the 43 Egyptian cartridge were developed at the same time frame. They both are black powder cartridges and operate on similar or same pressure ratings. As another answer said you have to use a low pressure (black powder) load in them and I agree with that. Not to mention that the new barrel will be of stronger steel than the old barrels of the time and will give you an added margin of safety over the original rifle. As to the Rolling Block action it has been proven to be one of the strongest actions ever designed. (We are talking single shots here not bolt actions) I have 4 or 5 Remington Rolling Blocks and even one chambered for 7x57 Mauser that will hold smokeless powder pressures. Not a problem. But should he decide to not rebarrel the rifle , there are places that sell 43 Egyptian ammo and new brass.

Answer 3

Not practical and even if it were possible, the Egyptian rolling block action would never hold up under a 45-70's pressures.
It would explode like a grenade in your face and hurt or kill you or whoever was to try and fire it! BAD IDEA!

Answer 4

If this is a Remington made Rolling Block and still in good condition I can't see where there would be a problem. As always it's best to have a competent gunsmith check the firearm before any work is done.

Answer 5

Egyptian Rolling Block

Answer 6

yes ya can,BUT you have to use low pressure shells, i have one and it is fun to shoot , you have to volley it for long range