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Why so little GP100 .22 10 shot discusion here?

This is a discussion on Why so little GP100 .22 10 shot discusion here? within the Ruger Double Action forums, part of the Pistol & Revolver Forum category; I would sure like to see a "shoot out" between a S&W 617 6" and the Ruger GP100 .22. I am a Ruger (and S&W) ...


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Old February 2nd, 2017, 06:43 AM   #16
 
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I would sure like to see a "shoot out" between a S&W 617 6" and the Ruger GP100 .22. I am a Ruger (and S&W) fanboy, and I probably would have bought the Ruger .22 GP100 if it had come out when I was looking at the 617. Having said that, the 617 is perhaps my favorite revolver of all time. Guess I'll always wonder how the Ruger compares.

The trigger on the S&W smooths out dramatically after a few hundred rounds; at least it did on mine.

I've looked at the Ruger at the LGS and it is a beautiful revolver.

My 617. Guess I'll never have the Ruger to show. :-(




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Old February 2nd, 2017, 09:39 AM   #17
 
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Started looking for one, Two gun shops out of five I checked so far have one, the one 30 miles north looks nice on the outside but has some ugly marks inside the frame when you open it up. Going to look at the other one 30 miles south tomorrow.
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Old February 2nd, 2017, 09:53 AM   #18
 
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Quote:
Originally Posted by Redleg View Post
I would sure like to see a "shoot out" between a S&W 617 6" and the Ruger GP100 .22. I am a Ruger (and S&W) fanboy, and I probably would have bought the Ruger .22 GP100 if it had come out when I was looking at the 617. Having said that, the 617 is perhaps my favorite revolver of all time. Guess I'll always wonder how the Ruger compares.

The trigger on the S&W smooths out dramatically after a few hundred rounds; at least it did on mine.

I've looked at the Ruger at the LGS and it is a beautiful revolver.

My 617. Guess I'll never have the Ruger to show. :-(

Redleg, It's only money.

I have three 617's (my favorite), a Ruger single 6, an LCR .22, a S&W 63 8 shot and an NAA mini. I just love .22 revolvers. A couple semi-auto .22's too but revolvers are my thing.

I think I need to get the GP100 just because!
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Old February 2nd, 2017, 02:57 PM   #19
 
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Thumbs up Finally got one!

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Originally Posted by PinShooter View Post
Started looking for one, Two gun shops out of five I checked so far have one, the one 30 miles north looks nice on the outside but has some ugly marks inside the frame when you open it up. Going to look at the other one 30 miles south tomorrow.
I decided to go to the other gun shop today, I found a nice one! Excellent machine work!

$629.99 + tax, I will post some pics later.
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Old February 3rd, 2017, 07:42 AM   #20
 
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I think alot of people who wanted a .22 Ruger revolver already have the SP101's, or just that people feel less inclined to post about .22 revolvers since there's less "cool factor" over a .357 or .44, I don't know

I would buy a .22 GP100 but with the .22 SP101 and MKI pistol I have it's not very high on my list, I am waiting for a used one to pop up at a gun show or something.
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Old February 3rd, 2017, 10:42 AM   #21
 
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Pics of my new GP100 10 shot

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Originally Posted by PinShooter View Post
I decided to go to the other gun shop today, I found a nice one! Excellent machine work!

$629.99 + tax, I will post some pics later.

















So far it is great, It was 3" low 3/4" left at 25 feet out of the box. Sighted in easy, shot 50 rounds with no misfires. The firing pin impact is in the correct location, not like my friends GP that was hitting the outside edge.

Cylinder gap is .005".

Just need to smooth up the action and I'm good to go!

Too cold to shoot any more outside at home, I will try some more at our indoor range tonight (Friday night bowling pin match).
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Old February 3rd, 2017, 02:02 PM   #22
 
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PinShooter,
Glad you are happy with your GP, looks good,
I like .22 revolvers and like my GP as well, last fall I even got a couple head shots on 2 rabbits with it
Happy Shooting
Dad45
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Old February 3rd, 2017, 03:55 PM   #23
 
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Give it some time pinshooter. More threads will eventually show up. It's still a fairly new model that has only been out a little over a year. I plan to get one after my tax return comes in. Nice pics by the way.
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Old February 3rd, 2017, 05:37 PM   #24
 
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Practice bowling pin shooting.

I did some practice scores with the Ruger after I shot my real scores with my 617 tonight at our bowling pin match (we shoot 5 pins as fast a you can). I did manage to get down to 2.60 seconds with the Ruger but mostly around 3.00 seconds.

Maybe after a spring change and smooth out the action I'll get it down to my S&W scores. My S&W's have been tuned for speed shooting for many years so it's not a fair comparison yet. Once I get this one broke in I think it will be a shooter as well.

So far it's reliable and accurate.

Last edited by PinShooter; February 3rd, 2017 at 05:43 PM.
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Old February 12th, 2017, 06:01 AM   #25
 
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GP100 vs S&W617

I did get the trigger pretty decent on GP, installed an 8 lb return spring and polished internal friction points. I have the Wolfe spring kit that came with an 8 and 10 lb trigger spring and 9,10 and 12 lb hammer spring. I tried the 12 lb hammer spring but had 50% FTF with CCI and Federal, so I put the stock spring back in. It might be nice to try something between 12 and the stock spring, whatever that is, maybe it's around 16lb.



Bench rest shootout, I did move the sight on GP to the left after this.



I then did a speed test comparison with the GP and S&W, this is from 25' starting with the muzzle on the table.
Accuracy was not my main concern, just hope for hits. I wanted to compare split times.
Please ignore the first shot times because I'm not used to shooting a fiber dot front sight and it took a bit getting my sight picture at first with the GP.






The trigger pull length is little longer with the Ruger but it didn't seem to bother me. This may be why I didn't get split times under 0.28 seconds though.







I did manage to get a nice group in 4.01 seconds with Ruger GP100.

For the speed shooting sports I do the GP100 should be about the same as my S&W 617. It will be nice to have the choice to use either one.
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Old February 17th, 2017, 09:36 AM   #26
 
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Firing pin tune up.

Although the stock gun with the heavy hammer spring was reliable with CCI and Federal, it was not reliable when trying to lighten the hammer. I want to get the hammer lighter (closer to my S&W's).

After looking at the firing pin and comparing to my other .22's, it was easy to see that the GP100 pin was extremely large and had a flat point. All my other .22's either have a rounded point or a chisel point. That's why it's takes a large spring force to get reliable ignition.

I took out the firing pin and turned it in the lathe to get a point similar to what S&W uses. The results were amazing, I was able to install a 12lb spring (that hardly worked at all before) and had only 2 misfires out of 50. I am ordering the 13,14 and 15lb set because I need just a little more power, then I should be all set.

I think the reason why Ruger made it so large was to compensate for their poor x-y tolerances in locating the firing pin in the frame. My friends GP was too high in the frame, hitting more near the edge. Since mine is located pretty good there is no reason not to make it more like a S&W firing pin.

Stock pin on left and polished radius on right, ammo shows results.



Next is to put in the shims I ordered to keep the hammer from rubbing on the frame. This will further enhance DA pull and probably increase the hammer strike as well.


Last edited by PinShooter; February 17th, 2017 at 09:40 AM.
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Old February 18th, 2017, 07:15 AM   #27
 
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Sounds like you are on your way. Couple of other things I would check are endshake, headspace and firing pin protrusion along with lightening the hammer. If you haven't had a chance to read it here is Iowegan's experience
with the GP 22:

GP100 in .22 cal

He did modify the hammer to get more firing pin protrusion.

I think the stock mainspring is 16 lbs per Wolff but that is for the centerfire so may be that the rimfire is heavier. Please keep posting on your mods as gives valuable info.
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Old February 18th, 2017, 11:11 AM   #28
 
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GP100 modifications

Quote:
Originally Posted by Rover View Post
Sounds like you are on your way. Couple of other things I would check are endshake, headspace and firing pin protrusion along with lightening the hammer. If you haven't had a chance to read it here is Iowegan's experience
with the GP 22:

GP100 in .22 cal

He did modify the hammer to get more firing pin protrusion.

I think the stock mainspring is 16 lbs per Wolff but that is for the centerfire so may be that the rimfire is heavier. Please keep posting on your mods as gives valuable info.
Rover, thanks for the reference. I failed to mention that I already milled 0.003" off the hammer stop to make it work with Winchester (also now Browning) ammo. They seem to have the thinnest rims of all.

I contacted Wollf and they told me they haven't had a GP100 10 shot in yet to verify spring weights. But he is pretty sure the late model SP101 spring kit with 13,14 and 15 will work. He told me the physical dimensions are similar, so I'm going to try them and see. I should have them in 3 or 4 days.

I installed the hammer shims and refinished the hammer rub marks.

Next may be a new front sight, I don't like fiber dot sights, black patridge for me.
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Old February 18th, 2017, 02:51 PM   #29
 
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I have an SP101 22lr and recently bought a 617. I like both and enjoy shooting 22's. I think my 617 is more accurate than my K22, in my hands anyway. The K22 has a better trigger but I'm just getting the 617 broken in. The target grips is what I think works for me on the 617 and I actually like the iron sights on it.
Nice GP100 PinShooter!
Attached Images
File Type: jpg 617c 019.JPG (1.89 MB, 23 views)

Last edited by Mikes1707; February 19th, 2017 at 12:48 AM.
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Old February 20th, 2017, 05:13 PM   #30
 
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3 things I didn't see until I brought it home.

The cylinder ratchet was poorly cut. This caused the double action pull to be rough near the end of the pull on those 4 and was wearing the corner off the hand. I filed and polished the defects and it is nice and smooth now.



The hammer was not shaped evenly. Not a big deal but being a retired designer, I like things symmetrical. I filed and sanded it into a nice shape.



The front sight is too high, it's not flat to the frame. Having never owned a GP100 I thought this was normal (kinda like a ventilated rib ) but this may be the reason I have the rear sight near it's upper limit.



I would recommend anyone looking for one to look at these things also.

I suppose any normal person would have sent it back to Ruger, but since I'm sure I've already killed my warranty, I don't think they would do anything for me. Also I'm sure they don't do any performance tuning on .22's.
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