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Sidelock
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You could easily polish 1.5 thou off each side of the right to match the dimensions of the left side. .003 isnt much.
You might have to buy or rent a cylinder hone that will work between .750 and an inch. I dont have one that goes that small, but, Ive seen them.

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Ted

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Just this week I used a 12 ga. chamber Flex Hone to polish my 870 SuperMag's chamber. It had severe extraction issues and the chamber was rough as a cob to the view and touch. A generous poster in another forum sent it to me and it has been returned to him. There are short videos on YouTube that demonstrate technique. I used the specified lubricant for the hone. It took 1.5 minutes of use to smooth out the chamber. Brownwells has them. The Flex Hone consists of numerous abrasive pads on the end of wires that compress allowing entry and the rotation of the drill causes them to push against the walls.
https://www.youtube.com/watch?v=RzAm5Ni0QCw

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What grit was it, Gil?


May God bless America and those who defend her.
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A brake wheel cylinder hone should work. They are cheap.

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Stan, I don't recall exact but it was for polishing. The man used it on his SuperMag to correct the same issue as mine. I'll ask him for the model number and grit size. Gil

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Originally Posted By: gunsaholic
A brake wheel cylinder hone should work. They are cheap.


And about as fast as molasses in winter. I don't have the patience to use mine. I've tried and tried, and it seems to do next to nothing.


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Thanks to all who made suggestions. I ordered a box of rst 2.5 in. shells but in view of the cost delivered to my location, I will ream the chambers so that I can shoot AA reloads.
Best wishes for the New year.

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That sounds like the best solution, assuming, the gun fits you well, and you shoot it well when you do get a round chambered in it. I wouldnt be in a hurry to alter a gun I knew I was going to get rid of.

Good luck.

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Ted

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Originally Posted By: Stan
Originally Posted By: gunsaholic
A brake wheel cylinder hone should work. They are cheap.


And about as fast as molasses in winter. I don't have the patience to use mine. I've tried and tried, and it seems to do next to nothing.


Sounds like the stones on your cylinder hone may be loaded with metal particles Stan. The carborundum abrasive on brake cylinder hones is the same thing that the abrasive balls on a Flex Hone are composed of. Gil was wise to use the recommended Flex Hone oil because it helps prevent the stones from loading up with metal particles. It is probably no different than the honing oil that is sold for use with carborundum knife sharpening stones. Even those load up over time, and periodically need scrubbed out.

I've used brake cylinder hones in shotgun bores to clean up mild pitting, and I have used them to clean up pitted brake master cylinder bores. They aren't super fast, but they certainly get the job done in a reasonable and controlled manner. I know you are very mechanically inclined. Those who are not should be advised that going too far can ruin a gun.

I do like Flex Hones and have used them. I just wish they weren't as expensive as they are. I often find smaller cylinder hones at auto parts swap meets for a fraction of the cost.


A true sign of mental illness is any gun owner who would vote for an Anti-Gunner like Joe Biden.

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