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8" barrel GP-100

This is a discussion on 8" barrel GP-100 within the Gunsmithing forums, part of the Firearm Forum category; I have a GP-100 that needs a 8"bbl . Is there a custom gunsmith out there that can help...


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Old December 19th, 2016, 02:23 AM   #1
 
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Thumbs up 8" barrel GP-100

I have a GP-100 that needs a 8"bbl . Is there a custom gunsmith out there that can help



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Old December 19th, 2016, 02:39 PM   #2
 
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Well Ironwoker, you can indeed have a smith put an 8" barrel on your piece, but since Ruger has never made an 8" GP100 barrel of that length, it might just be a pipe looking affair? In fact the same thing is true for the Redhawk line. Now the Super Redhawk does indeed come with longer barrel lengths, but then again that is a "Pipe" as it comes from the factory.

Here's what I'd suggest. Get yourself a current issue of Shotgun News and pour through it looking especially at ads from Sarco, and Numeric Arms among other parts people. I once had a project where I had a Colt trooper MK III and decidid that it needed spiffing up a bit. It was Sarco at the time that was offering 8" Python barrels. Factory brand new in their original box and desicant paper wrapped condition. That was a really fun project and the finished product looked ever so spiffy. I imagine that if you could do the same here that would be terrific. You do have to worry about barrel threads and length and that whole issue. As it was with the Python barrel addition, there is much more thread bearing surface between a Python barrel and it's frame than a Trooper barrel and its respective frame. What that meant is that the barrel (threaded portion) had to be cut and shortened. New forcing cone cut and a tedious amount of play for the correct barrel/cylinder gap.

One real easy way to avoid that and to possibly do a lot of the work yourself would be to do the above research, but this time look for an 8" Dan Wesson barrel assembly. With that all you'd have to have your gunsmith do (once you also provided him with a .357 barrel blank of at least 8") is after removing the Ruger barrel, cut those threads into the barrel blank on one end. Then using the Dan Wesson barrel as a guide, cut those fine threads on the muzzle and crown the barrel. Now you'll have a pipe as it were, with Ruger frame threads on the breech end of the barrel and Dan Wesson barrel nut threads on the muzzle end of your barrel. Then the Dan Wesson barrel nut (that comes with any assembly) will work as designed. You'd simply hand screw the barrel into your GP100 and butt it up against a 4-6 thousandth feeler gauge, slip the Dan Wesson barrel shroud over the barrel and finally tension the barrel and attach the shroud with the barrel nut. I've done that modification on several guns and I was never disappointed ever.

You basically get a Dan Wesson made by Ruger if that makes any sense. The Dan Wesson full underlug shroud is a beefy one at that and if you really got energetic, you could always get another shroud/barrel assembly and a barrel blank to make yourself yet another barrel of say a shorter length so you'd have two barrels with your new custom gun. Speaking of that, if you really wanted to get carried away in the Dan Wesson barrel addition, you could always go longer up to 15" in length. Those assemblies are still out there and still can be had at a reasonable price. Best of luck to you and sorry I didn't have a smith to give you, but this is real easy lathe work and any machinist worth his salt could do the work. Smithy.
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Old December 19th, 2016, 02:54 PM   #3
 
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Good advice and certainly cheaper than a full custom barrel.
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Old December 19th, 2016, 06:30 PM   #4
 
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Why 8" instead of the factory standard 6" ? Just curious.
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Old December 22nd, 2016, 08:48 AM   #5
 
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Quote:
Originally Posted by slimjim9 View Post
Why 8" instead of the factory standard 6" ? Just curious.
If you ever get a chance to shoot one of the 8 3/8" S&W's, or a 10" SBH, you will understand. The extra length really tames the recoil and blast. The extra sight radius makes a noticeable difference when trying to drop a bowling pin at 100yds.

It also makes them less portable.
You need to decide what is most useful or what you need.

I suspect that revolver sales get bigger as the barrels get shorter, down to about 2"-3", but I know that not for sure. 10" SBH's are very scarce, and 8" S&W's about the same.
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Old December 23rd, 2016, 10:33 AM   #6
 
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Thumbs up No good reason

The longer sight radius was a reason for an 8"bbl . Looks like I'm going to have face the fact that it's not practical . I do have a 8"Colt Anaconda ,that will have to suffice,and it does nicely.
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Old December 23rd, 2016, 12:08 PM   #7
 
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Considering that the GP does not need a ejector shroud it should be simple, and not expensive to replace the barrel with 8 inch barrel stock. Saw it done a lot in the 70's with smiths, but they had to have a ejector lock welded on. Flat side competition guns were common at that period of time.

Considering the extra weight my six inch GP is not a EDC, probably would not even carry it hunting. An eight inch would be almost a carbine.

But a Blackhawk 7.5, now that could be an EDC, or a hunting gun.

Last edited by Walkingwolf; December 23rd, 2016 at 12:18 PM.
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Old December 23rd, 2016, 01:16 PM   #8
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If I owned an 8" Anaconda I would care less about any GP100.....

Any real gunsmith (I mean a guy who can rebarrel, rechamber, fabricate parts, make a cylinder, etc. and not the so-called "gunsmiths" at places that can only swap parts or mount a scope) can buy a barrel blank from Brownell's and take it from there. But I would rather own an 8 3/8" Model 27-2 anyway and it would be cheaper than converting a GP100 when you consider the all-in cost.
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Old December 23rd, 2016, 01:30 PM   #9
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Quote:
Originally Posted by TMan51 View Post
10" SBH's are very scarce, and 8" S&W's about the same.
Hmmmmm.....not sure I agree with that. The 10" SBH is a standard model and there are (27) for sale right now on Gun Broker, including one (used) priced at $399.99, no bids and less than 4 hours left. Quite a few new ones listed in the neighborhood of $600.

On the S&W side there are (59) 8 3/8" 44 Mag and (24) 8 3/8" 357 mag revolvers listed for sale. If you counted all calibers of S&W revolvers with an 8 3/8" barrel you would have (162) for sale.

Short barrels are in fashion right now and the longer barreled models generally are fetching less. That's why if I wanted a long barreled 357 Mag I wouldn't bother customizing a GP100 and just find a nice S&W. Even if you sold the GP100 and bought the S&W I think you would be better off money-wise versus paying for the custom work. Might have a better gun too but that's a topic for another thread...
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Old December 23rd, 2016, 01:53 PM   #10
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There's another solution here that nobody has suggested. Write or call Ruger and ask them if they have any such 8" production runs coming up soon. Or call one of the big name distributors and see if they currently have any interest in having Ruger do a batch of "distributor exclusives".

They may not do it for you all by your lonesome, but you might find out that the gun you desire will be coming out soon. And at the very least you'll add your voice to those requesting such a GP100.

The way Ruger is releasing new models and variation almost daily, nothing would surprise me anymore.
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Old December 24th, 2016, 06:51 AM   #11
 
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Quote:
Originally Posted by Waveform View Post
Hmmmmm.....not sure I agree with that. The 10" SBH is a standard model and there are (27) for sale right now on Gun Broker, including one (used) priced at $399.99, no bids and less than 4 hours left. Quite a few new ones listed in the neighborhood of $600.

Incorrect. The 10 1/2" is the standard cataloged length. The 10" however...that's a whole different animal and is indeed NOT common at all.


As for the 8" GP100... I don't see it happening even as a distributor thing. Just don't see the market for it. Ya never know though. heck, why not work with one, put up the $ and get it done yourself?

Have you looked at what Gemini Customs, Cylinder & Slide or Clark can do in this regard?

Last edited by BlkHawk73; December 24th, 2016 at 06:55 AM.
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Old December 24th, 2016, 07:07 AM   #12
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BlkHawk73, if you're going to be THAT persnickety with the details there are no 8" S&W either. S&W has always preferred 8 3/8". But for the purposes of discussion I assumed the comment implied 10 1/2" SBH and 8 3/8" S&W. Just as people here commonly talk about 4" barreled GP100s when the vast majority are actually 4.2". Who really cares?
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Old December 24th, 2016, 09:00 AM   #13
 
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Persnickety? Considering there is indeed quite a difference between the very common 10 1/2" SBH's and the very uncommon 10" models it's not being your so-called "persnickety" it's being accurate. You yourself attempt to correct Tman51 and in doing so, gave incorrect info. Would not your response to him likewise be "persnickety"?
While I cannot comment on the S&W details, I can correct you again - being the persnickety type that I apparently am - on your GP100 comment. Seeing a the model first started production in 1986 and it wasn't until (I wanna say) 2009 until the 4" model was changed to a 4.2" model (to allow exportation to Canada) I kinda gotta believe there's far more of the 4" model than the current 4.2" models.
Who cares? Maybe nobody, but if you're gonna give out info why not be accurate about it especially when it's done to correct someone? With the collectability of the actual 10" model, it makes a LOT of difference. It's these small variables that separate the collectable models and the common, ho-hum stuff.
You get bothered when the media gives incorrect info or just let it go as "well, ppl know what they mean"?

Last edited by BlkHawk73; December 24th, 2016 at 09:40 AM.
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Old December 24th, 2016, 09:16 AM   #14
 
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Thumbs up Christmas

Can't we all just get along ?
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Old December 24th, 2016, 10:30 AM   #15
 
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I once had a S&W 586 with an 8 3/4" bbl and loved it. Great trigger. I took quite a few deer with it.
Having said that, my 6" GP100 is no slouch in that regard and I don't feel disadvantaged at all with it. I love it. The only way I'm going to change it is to get a Weigand scope mount base and put a Burris FastFire III on it because my eyes aren't what they used to be.
I'm also going to have a holster made for it with that setup by Trailmaster Holsters. They made the holster for my current setup and that's the only holster maker I'll ever deal with. Top notch handmade holsters.
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