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Post by Quick Draw McGraw on Jul 21, 2021 19:58:53 GMT -5
Hi all,
I hear a lot about polishing/Honing cylinder chambers to aide in reducing sticky-case extraction. This has me eager to do this. HOWEVER... I am more eager to not screw up any of my revolvers. What can you well-informed gentlemen tell me? Is this a reasonable thing to do? Or should I entrust a smith? Perhaps a specialist like Huntington, Reeder, Clements, etc.?
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Post by 45MAN on Jul 21, 2021 20:28:21 GMT -5
INTERESTED TO SEE WHAT GETS POSTED
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rkrcpa
.30 Stingray
Posts: 259
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Post by rkrcpa on Jul 22, 2021 5:51:55 GMT -5
I experienced sticky extraction in a Blackhawk some years back and used a tight fitting cotton bore mop coated in JB compound to give the chambers a light polish. Seems to have worked, I haven't had issues with extraction since.
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Post by Encore64 on Jul 22, 2021 6:00:55 GMT -5
I've done the same with Cylinder Throats. Put an empty case in the chamber and use a bore mop in a drill. Find Corbin's Bore Lap Compound to work best for me.
No reason this wouldn't work on chambers too...
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Post by leadhound on Jul 22, 2021 9:09:02 GMT -5
I've done the same with Cylinder Throats. Put an empty case in the chamber and use a bore mop in a drill. Find Corbin's Bore Lap Compound to work best for me. No reason this wouldn't work on chambers too... You always give me the "Why didn't I think of that!" Maybe I'm slow to the game, but one reason I love this place is all the different ideas and knowledge.
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Post by contender on Jul 22, 2021 10:31:20 GMT -5
One thing SOMETIMES seen in "kitchen table gunsmithing" on these types of projects,,, is chambers polished "out of round." You get the oblong or egg shaped chambers. Not easily seen with the naked eye,, but it happens. Proper tools to keep things rounded etc help prevent such occurrences.
2dogs,, (Fermin) does a FINE job of smoothing up a chamber in a cylinder. And on the CB Forum,, a guy called "DougGuy" also can do excellent work.
Easier to pay a small amount to a good smith,, than to have to pay more after a screw-up.
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Post by Quick Draw McGraw on Jul 22, 2021 14:02:14 GMT -5
One thing SOMETIMES seen in "kitchen table gunsmithing" on these types of projects,,, is chambers polished "out of round." You get the oblong or egg shaped chambers. Not easily seen with the naked eye,, but it happens. Proper tools to keep things rounded etc help prevent such occurrences. 2dogs,, (Fermin) does a FINE job of smoothing up a chamber in a cylinder. And on the CB Forum,, a guy called "DougGuy" also can do excellent work. Easier to pay a small amount to a good smith,, than to have to pay more after a screw-up. I may DM 2dogs. I also realized that most firearms allow me to remove the cylinder entirely. Meaning I can ship JUST the cylinders! TAKE THAT FEDEX!
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Post by Encore64 on Jul 22, 2021 19:15:16 GMT -5
I don't believe you could oval a throat with a bore mop. That would take true talent. Have seen them ovaled with a reamer.
Polishing and opening up are two different things. I do send all my cylinders off that need the throats enlarged. I've got several to send Fermin soon...
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Post by leadhound on Jul 22, 2021 20:58:21 GMT -5
Quick turnaround from Fermin and good communication.
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Post by contender on Jul 22, 2021 21:01:02 GMT -5
"I don't believe you could oval a throat with a bore mop. That would take true talent. Have seen them ovaled with a reamer."
I used to think like that.
But when someone does something like a light polish,, thinking; "Hey a little is good so a lot must be great!" It goes south. Seen it.
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Post by Encore64 on Jul 22, 2021 22:09:00 GMT -5
I simply can't subscribe to that thinking. Perhaps others can, but I'm of a different mindset.
I've seen this exact same theory applied too many times and to too many things.
Handloading is a prime example. I've read many times how some theorize that handloading is dangerous because someone might think if a little powder does good, a lot of powder...
I wonder how many generations are left capable if we continue to dumb down people because someone screwed up?
I'm more of a learn from mistakes (mine and others) kind of thinker.
Do we not handload because someone blew up a gun? Not drive because someone died in a wreck? Where does the dumbing down end?
I've seen guns screwed up by home gunsmithing. NEWSFLASH!!! I've seen guns screwed up by big name gunsmiths too.
I believe this forum is inhabited by some pretty danged intelligent gun people who probably know their limits. In the end, knowing out limits is what keeps us in check...
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Post by matt56 on Jul 22, 2021 22:14:05 GMT -5
My local Napa has valve lapping compound I’ve used for polishing forcing cones. I imagine it would work good for cylinder chambers as well. I think it grinds itself into a finer and finer paste the more you work it
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Post by leadhound on Jul 22, 2021 22:33:53 GMT -5
Loctite has Clover lapping compound in multiple grits as well.
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rkrcpa
.30 Stingray
Posts: 259
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Post by rkrcpa on Jul 23, 2021 6:16:22 GMT -5
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Post by 45MAN on Jul 23, 2021 6:49:25 GMT -5
I SORT OF DO THE SAME THING, I WRAP SOME STEEL WOOL AROUND A STEEL BORE BRUSH, PUT IT IN A DRILL, AND POLISH THE CHAMBERS, HAS HELPED ME CLEAN AND/OR POLISH CHAMBERS, AND CYLINDER PIN HOLES IN RUGER SA REVOLVER FRAMES AND CYLINDERS FOR FITTING BELT MOUNTAIN BASE PINS.
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