My 10mm GP-100 - AR15.COM

Posted: 2/1/2016 7:40:01 PM EDT

Clement's built me a GP-100 in 10mm. It took eight months to get it but I think it was worth the wait. It started life as a Ruger GP – 100 6-inch. Here are the requisite pictures.

Hopefully I'll get a chance to shoot it some this week.

Posted: 2/1/2016 7:41:54 PM EDT

[#1]

Very cool! What all was done during the conversion?

Posted: 2/1/2016 7:50:28 PM EDT

[#2]

How in the majestic fuck is this possible, and I demand more pics! Is that the factory cylinder?!

Posted: 2/1/2016 8:50:02 PM EDT

[#3]

Clement's (David?) Removes the barrel and ships it out to be bored to .400 and I had him slab side it. He bores out the factory cylinder, sets the cylinder gap to .005 and checks the timing. Mills the cylinder to fit moon clips. I also had him do a trigger job on it. Double action is set to 8 pounds and single action to 2.5 pounds.

I bought the revolver new off of GunBroker and had it shipped directly to him.Today was the first time I ever saw the revolver. He received it end of May and shipped at the end of last week to my dealer. Who by the way is very jealous.

Posted: 2/1/2016 8:50:42 PM EDT

[#4]

Very nice! I have a S&W 610. 10mm/40S&W revolvers are very nice!

Posted: 2/1/2016 9:00:06 PM EDT

[#5]

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Quoted:
How in the majestic fuck is this possible, and I demand more pics! Is that the factory cylinder?!

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What other pics would you like?

Posted: 2/1/2016 9:01:06 PM EDT

[#6]

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Quoted:
Very nice! I have a S&W 610. 10mm/40S&W revolvers are very nice!

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I wanted a 610 but the price of them has gotten so high it's crazy.

Posted: 2/1/2016 9:03:14 PM EDT

[#7]

BTW this will go very nicely with my AR-15 10mm.

It's on a DDLES lower and uses large Glock mags. I have a 10mm and a .45acp uppers.

Posted: 2/1/2016 9:28:14 PM EDT

[#8]

that is awesome

Posted: 2/1/2016 11:02:15 PM EDT

[#9]

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Quoted:
I wanted a 610 but the price of them has gotten so high it's crazy.

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Quoted:

Quoted:

Very nice! I have a S&W 610. 10mm/40S&W revolvers are very nice!

I wanted a 610 but the price of them has gotten so high it's crazy.

I got super luck about ten years ago. Local Gander Mountain had a used 610 (no dash) with a 6.5 inch barrel. I got it for $520.

Posted: 2/1/2016 11:58:07 PM EDT

[#10]

I have had a hankering to get that treatment for a GP for years now. Very nice gun, someday I hope I get one with a four inch barrel.

Posted: 2/2/2016 12:35:48 AM EDT

[#11]

Very cool. How much was the work?

Posted: 2/2/2016 1:02:14 AM EDT

[#12]

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Quoted:
Very cool. How much was the work?

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I want you to answer this as well, although the .357 gp100 I have sitting in the safe does not want it to be a reasonable number

I think I can hear it whimpering

Posted: 2/2/2016 1:07:26 AM EDT

[#13]

Things like this make me want an N-frame .327 Federal.

Posted: 2/2/2016 2:21:26 AM EDT

[#14]

A touch over 1K for all the work not including the cost of the revolver.

Posted: 2/2/2016 11:53:48 PM EDT

[#15]

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A touch over 1K for all the work not including the cost of the revolver.

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Worth every penny.

Any pics you can post up! Macro pics of the muzzle, and details on the cylinder would be delicious!

Posted: 2/3/2016 1:21:13 AM EDT

[#16]

Very cool brother.

Posted: 2/4/2016 1:13:25 AM EDT

[#17]

Very cool, great looking wheelgun too.

Posted: 2/4/2016 12:29:16 PM EDT

[#18]

10mm in a revolver interests me. But that AR in 10mm interests me more. Got plans to SBR it in the future?

Posted: 2/4/2016 1:31:17 PM EDT

[#19]

Badass!

Perfect application for the GP 100 IMO-its too big/bulky for .357.

Posted: 2/6/2016 12:02:17 AM EDT

[#20]

Very nice! I like the slab side barrel too. When I had my conversion done I asked Clements about slabbing the barrel gp100 3", and got no response. So I had one of the machinists where I work slab it. Then the factory front sight was to tall so I cut a shorter no snag, rounded sight (think old s&w style) at work and now could not be happier with the out come. I notice now he's offering the slab side and a new front sight!

Posted: 2/6/2016 12:11:20 AM EDT

[#21]

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Quoted:
I wanted a 610 but the price of them has gotten so high it's crazy.

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Quoted:

Quoted:

Very nice! I have a S&W 610. 10mm/40S&W revolvers are very nice!

I wanted a 610 but the price of them has gotten so high it's crazy.

Yup....

I am very interested

Posted: 2/6/2016 4:14:32 PM EDT

[#22]

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Very cool brother.

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Indeed!

Posted: 2/8/2016 9:22:13 PM EDT

[#23]

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Indeed!

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Very cool brother.

Indeed!

I love everything about this revolver. Might be one of my 2016 guns if I can stop knocking out walls in my house.

Posted: 2/12/2016 4:59:37 AM EDT

[#24]

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Quoted:
10mm in a revolver interests me. But that AR in 10mm interests me more. Got plans to SBR it in the future?

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I've thought of SBRing it but the cost is prohibitive right now. Tax stamp and new uppers. I really like the 16" barrel in 10mm, it gains fps pretty well. The .45 not so much, so I might just have it rebarreled when I'm ready.

Posted: 2/12/2016 5:36:26 AM EDT

[#25]

Interesting... but why? There are obviously superior cartridges for a revolver.

Posted: 2/12/2016 7:36:41 AM EDT

[#26]

Very, very, very COOL!

Posted: 2/12/2016 8:50:00 PM EDT

[#27]

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Quoted:
Interesting... but why? There are obviously superior cartridges for a revolver.

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I love the versatility of 10mm, load it hot, mild or anywhere in between. It has a wide range of bullet weights available and numerous powders.

I have .22lr & wmr, .38spl, .357 and .44 magnum revolvers, this is something different. I appreciate different.

Posted: 2/12/2016 9:36:05 PM EDT

[#28]

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Quoted:
Interesting... but why? There are obviously superior cartridges for a revolver.

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Because they are rimmed?

10mm trail ammo is way easier to find some places than .357 or .41. That alone could make this a great choice for backwoods.

Posted: 2/14/2016 9:25:39 AM EDT

[#29]

10mm trail ammo is way easier to find some places than .357 or .41. That alone could make this a great choice for backwoods.

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Maybe for you, but I have yet to come across a gun store that stocked 10mm but didn't have at least one box of .41 on the shelf...and they all have .357 Mag ammo.

Beautiful gun, interesting conversion on a GP100. I've toyed with the idea of sending him a Blackhawk, just can't convince myself to spend the money...yet. I really want a slicked up Bisley 5.5" in .41 Mag, but prices are getting crazier and crazier. Guess I need to go ahead and do it now, prices are only going up.

Posted: 2/14/2016 12:17:54 PM EDT

[#30]

Quote History

Quoted:

Maybe for you, but I have yet to come across a gun store that stocked 10mm but didn't have at least one box of .41 on the shelf...and they all have .357 Mag ammo.

Beautiful gun, interesting conversion on a GP100. I've toyed with the idea of sending him a Blackhawk, just can't convince myself to spend the money...yet. I really want a slicked up Bisley 5.5" in .41 Mag, but prices are getting crazier and crazier. Guess I need to go ahead and do it now, prices are only going up.

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Quoted:

10mm trail ammo is way easier to find some places than .357 or .41. That alone could make this a great choice for backwoods.

Maybe for you, but I have yet to come across a gun store that stocked 10mm but didn't have at least one box of .41 on the shelf...and they all have .357 Mag ammo.

Beautiful gun, interesting conversion on a GP100. I've toyed with the idea of sending him a Blackhawk, just can't convince myself to spend the money...yet. I really want a slicked up Bisley 5.5" in .41 Mag, but prices are getting crazier and crazier. Guess I need to go ahead and do it now, prices are only going up.

I can find .357 magnum even at Walmart but 10mm ammo is very hard to find out in the wild and has to be special ordered or just ordered myself online.

Posted: 2/14/2016 5:48:00 PM EDT

[#31]

OP: Have you chrono'd any ammo or loads out of the revolver? I've always wondered how the 10 would perform our of a revolver was compared to an auto. I figure it has to lose some velocity due to cylinder gap.

Posted: 2/14/2016 11:49:39 PM EDT

[#32]

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Quoted:

OP: Have you chrono'd any ammo or loads out of the revolver? I've always wondered how the 10 would perform our of a revolver was compared to an auto. I figure it has to lose some velocity due to cylinder gap.

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You might loose ~50 fps due to cylinder gap depending on gap dimension, powder and bullet weight. http://www.ballisticsbytheinch.com/gaptests.html <-- cool data testing the effect of cylinder gap.

But remember a GP100 with a 6 inch barrel is a lot longer effective barrel than a 6 in semi auto. A revolver barrel is measured from the front of the cylinder where a semi auto is measured from the breach face. Measure a 6-inch GP100 from the breach face and that suddenly become a 7.6 inch equivalent barrel length.

My favorite load in my 6.5 inch S&W 610 is pushing 180gr XTP bullet at 1300fps.

Posted: 2/15/2016 12:00:26 AM EDT

[#33]

I can tell you that the cylinder Gap is set at .005" .

Posted: 2/15/2016 4:01:59 AM EDT

[#34]

I've got a 310 Night Guard that I love. 10 mm revolvers are neat.

Posted: 2/20/2016 12:21:14 AM EDT

[#35]

The first 12 shots out of my GP-100 10mm from about 15 yards. Center panel near the bottom.

Posted: 2/20/2016 12:40:43 AM EDT

[#36]

Very Nice!

Posted: 2/20/2016 8:53:07 AM EDT

[#37]

Quote History

Quoted:
I can find .357 magnum even at Walmart but 10mm ammo is very hard to find out in the wild and has to be special ordered or just ordered myself online.

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

10mm trail ammo is way easier to find some places than .357 or .41. That alone could make this a great choice for backwoods.

Maybe for you, but I have yet to come across a gun store that stocked 10mm but didn't have at least one box of .41 on the shelf...and they all have .357 Mag ammo.

Beautiful gun, interesting conversion on a GP100. I've toyed with the idea of sending him a Blackhawk, just can't convince myself to spend the money...yet. I really want a slicked up Bisley 5.5" in .41 Mag, but prices are getting crazier and crazier. Guess I need to go ahead and do it now, prices are only going up.

I can find .357 magnum even at Walmart but 10mm ammo is very hard to find out in the wild and has to be special ordered or just ordered myself online.

Bet you could find some cheap plinking .40 though. Its way more available then 38 around here and cheaper too.