Have been reading about the 10mm Magnum and would like to convert my 610-3. But, don't want to alter my original cylinder. I would like to have a spare cylinder or cylinder assembly which could be reamed and labeled for 10mm magnum. I have looked at the most likely suppliers like S&W, Brownells, Numrich, and Midway. No luck. Any of you folks have a supplier suggestion?
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610 10mm Magnum
- Thread starter mitchjt
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Have you checked with the S&W factory?
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The model 610 is back in production, so presumably spare parts will be back in stock. They may insist on fitting it but there is no reason it cannot be altered to 10 mm Magnum after this.
Patrick L
Member
So I have to ask, what is a 10mm Magnum! I assume a stretched 10mm?
HamHands
Member
Yes... and it appears that it's about on par with .41Mag specs but there is limited info on the interwebs from my past research into the niche caliber! Cool idea though!
One could be made from a stainless 6 shot N frame 357 cylinder. Ream and machine off rear face for clips.
Or rework model 28 cylinder and have it hard chromed'
Or patience
Or rework model 28 cylinder and have it hard chromed'
Or patience
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Yes the cartridge came out about 20 or more years ago to be used in the AutoMag IV
It develops about 200-400 additional FPS depending on the projectile
All of my 310/610 revolvers have been opened up for the cartridge
TooManyChoices
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You should look long and hard at your ammo options. If you reload, you can get brass from Starline. You will have a really hard time finding data. The only commercial producer is Double Tap.
Here is my blasphemy, I had Tyler Gun Works convert a Ruger GP100 10mm to a 10mm Mag. A true fire breathing dragon that is fun to shoot. You will have to use TK moon clips, as conventional will not stand pressure.
My two pennies.
Here is my blasphemy, I had Tyler Gun Works convert a Ruger GP100 10mm to a 10mm Mag. A true fire breathing dragon that is fun to shoot. You will have to use TK moon clips, as conventional will not stand pressure.
My two pennies.
10mm Auto and 10mm Mag are supposed to operate at the same pressure, 37.5K PSI.
If the chamber shoulder's are cut to the proper depth you can shoot without moonclips (as long as you use a taper crimp) & pluck out the brass individually, in non-critical use.
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If the chamber shoulder's are cut to the proper depth you can shoot without moonclips (as long as you use a taper crimp) & pluck out the brass individually, in non-critical use.
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Received my (500) 10mm MAG brass from Starline. Most of it measures right at the minimum length, 1.245", or a .001" under. Running them thru my resizing die adds a couple .001" in length to them.
Using a Mansoner Reamer I've got (3) chambers done. Removing .263" from each chamber is slow by hand. As soon as my blister gets better I'll finish the last ones.
mitchjt, did you find another cylinder?
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Using a Mansoner Reamer I've got (3) chambers done. Removing .263" from each chamber is slow by hand. As soon as my blister gets better I'll finish the last ones.
mitchjt, did you find another cylinder?
.
Fishinfool
Member
There are a couple S&W model 27 cylinders for sale right now on GB.
Larry
Larry
This thread got me to thinking, unfortunately! So, I went to measure my 610 and 627 cylinders to see if they were compatible. The 627 cylinder was 1.577 and the 610 cylinder was 1.572. Maybe there is that much difference in manufacturing tolerances, so a 627 cylinder could be made to fit. Then I remembered, I had an extra 627 cylinder. Once about 10-12 years ago, I discovered my 627-2 had one chamber that had a .01 oversize throat, so I sent it back to Smith and they replaced the cylinder and sent the old one back.
So I went looking for it to see if it would fit in my 610, and if it would not, maybe I would sell it to someone who could use it, like the OP. Alas, I can't find it!! Surely, I didn't throw it away. Life can be frustrating. I will continue to look for it, but I have looked everywhere it should be.
If I have a second cylinder for a gun, I would certainly want a separate yoke to match it. I say this because I had a gun sent back for a fluted cylinder and the unfluted was returned, but will no longer fit with the yoke in the new cylinder. Each cylinder needs its own yoke to fit in this gun. I have not tried this enough to know how often two cylinders can use one yoke for the host gun.
So I went looking for it to see if it would fit in my 610, and if it would not, maybe I would sell it to someone who could use it, like the OP. Alas, I can't find it!! Surely, I didn't throw it away. Life can be frustrating. I will continue to look for it, but I have looked everywhere it should be.
If I have a second cylinder for a gun, I would certainly want a separate yoke to match it. I say this because I had a gun sent back for a fluted cylinder and the unfluted was returned, but will no longer fit with the yoke in the new cylinder. Each cylinder needs its own yoke to fit in this gun. I have not tried this enough to know how often two cylinders can use one yoke for the host gun.
