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Cutting dovetail over chamber/bore...
SuperMag
Member Posts: 25 ✭✭
I'm cutting a dovetail on a barrel for a rear sight over the bore, just ahead of the chamber of a .358 Winchester. The barrel is rather slender so this is a bit tricky. At the minimum, how much "meat" do I leave between the bottom of the dovetail and the bore?
Comments
My question is --generally speaking-- how much steel, minimum, does there have to be between the bore of the rifle and the dovetail without having to worry about failure?
Like MW said there is no standard for this, just commen sense.
I'm thinking that the barrel really doesn't need to be tremendously thick there; the chamber walls on my S&W .44 Magnum only measure 0.080", and the chamber wall thickness under the timing notches on that same gun mic out at 0.035"...
But one thing can be said with certainty; the yield strength of the steel of each weapon has to withstand the proof load pressures of their respective calibers.
That said, the full depth of the dovetail of this particular sight is 0.090". If cut to full depth, this would leave 0.142" of steel between the bottom of the dovetail and the bore. Almost twice the thickness of the chamber walls of the .44. I'm thinking this would be OK...
hope it helps.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.