Yep, eli is right. The whole of the recoil force is taken on the locking shoulder. This is taken across the whole of the body as opposed to the sides/edges.

One 'weak' point that we as Armourers found on high mileage/well used/thrashed rifles was the rear locking lug of the body...., the part engaged by the spring loaded locking latch in the trigger mech. housing, was constantly loose on the latch. There was a process where, if a No2 size latch was still loose, then the locking lug could be built up with weld. After this, the body was marked and if it failed later, that was the end of the line.

There were a few 'bodges' ...., what you wild colonials call 'bubbas' that could 'cure' the problem for 2 minutes, but these were jusy bodges by any name.

Like someone said, a good tough rifle and a pleasure to shoot ....., but not for too long!
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