What diameter grinder best for smoothing out 870 shotgun tube?

Remington 870 Repair and Gunsmithing.
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terrierkeeper
New Shotgunner
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Joined: Fri Dec 11, 2015 5:32 pm

What diameter grinder best for smoothing out 870 shotgun tube?

Post by terrierkeeper »

I am planning to add a magazine extension to my Remington 870 and after drilling out the moles in the tube what diameter grindstone will I be able to use on my drill? At the same time I got me a bayonet for my shotgun but the Chinese made thing does not fit so I will have to grind that out as well.
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