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Those manufacturers to whom you refer, are using oven-brazing equipment, not a hand-held torch. They are able to control temperatures precisely, control the cool-down period precisely, and heat-treat later as required. Same applies to brazing chopper-lumps together, These jobs aren't done by some ordinary Joe with a torch and some brazing rod, They're done with metal/flux pastes, a jig to hold everything in place, and into the oven.

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There have been hundreds of thousands of guns built on the monobloc system, using nothing but tin/lead solder

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All that the solder does is to hold the barrels into the mono-bloc, it contributes zero to the ability of the assembly to retain and withstand pressure. THINK ABOUT IT!

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Yes, I have THOUGHT ABOUT IT, perhaps it's time you thought about it also.
You need to think about AXIAL FORCE.
Axial force is the most powerfull force acting on a double barrel rifle action.
Axial force is the reason for developments like chopper lumps and third fasteners (and others).
Axial force results from chamber pressure pushing on the action face, trying to push the barrels away from the standing breech.
Of course the jointing of the monobloc to the action will contain this.
So Axial force is transmitted from the cartridge pressure acting against the action face, to the barrel/s, to the monobloc and then to the action.
The important thing here is "the BARRELS TO THE MONOBLOK".

The joining of the barrels to the monoblock will have to endure and contain this strongest of forces to act on the double rifle, the Axial force.
You may be happy to use any soft solder for that purpose, I'm not.

A chain is only as strong as its weakest link.
It doesn't matter a stuff how strong the action frame is or how strong the jointing of monoblok to the action frame is.
The overall strength of the entire monoblok system relies on the strength of the barrel to monoblok join.
That's why I prefer high temp solders for that task, as they offer far superior strength to any of the soft solders, especially the basic tin/lead types.

This is just what I prefer for double rifles built on monoblok shotgun actions and anyone else can use whatever solder they like.










Edited by 4seventy (15/06/05 09:35 PM)

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