Tungsten Matrix out of Fixed Full Choke?

IIRC, Tungsten is heavier than steel and harder on barrels than steel, but Tungsten Matrix is tungsten inside a plastic or polymer shell. Because of the plasitc coating or shell, it is difficult to get very large shot sizes. TM is OK in older barrels and chokes that were designed for lead shot.
 
I always wondered about that tungsten/steel/lead hardness thing. we make precision dental burs (miniature end mills) where I work and the only thing hard enough to cut the flutes in the burs are diamond grinding wheels.

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I always wondered about that tungsten/steel/lead hardness thing. we make precision dental burs (miniature end mills) where I work and the only thing hard enough to cut the flutes in the burs are diamond grinding wheels.

??????????????

Tungsten matrix is a polymer(matrix), the tungsten is suspended in a medium that is formed into pellets, therefore the hard tungsten doesn't come into contact with the bore and can compress similar to lead because of the soft polymer component. Tungsten is definitely harder than steel but the polymer protects the barrel.

In other High density loads designed for more modern shotguns the pellets again contain some tungsten but it is again suspended in another metal limiting bore contact, the wad cup in all of the HD loads I tested also prevented pellets contacting the bore.
 
thanks for the answer.

Maybe if I wasn't such a cheap S.O.B. I guess I would have found that out for myself. :redface:
 
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