AirGun Guild

General Category => The Garage => Topic started by: sixshootertexan on June 23, 2017, 08:53:38 PM

Title: .177 Regulated Rifle Build
Post by: sixshootertexan on June 23, 2017, 08:53:38 PM
I've been working on this build for some time now. When the oil and gas business hit bottom here I had time to work on it but no money to purchase items that I needed. Things are finally coming back around.
The Build.
.177 Lothar Walther   .630" od 19" length
Ninja Pro2 SHP regulator
Timney trigger
Boyds Blaster Stock (yet to be purchased)

(http://i42.photobucket.com/albums/e330/sixshootertexan/177%20reg/DSC00412_zpso5relvib.jpg) (http://s42.photobucket.com/user/sixshootertexan/media/177%20reg/DSC00412_zpso5relvib.jpg.html)
(http://i42.photobucket.com/albums/e330/sixshootertexan/177%20reg/DSC00411_zpssmphchzc.jpg) (http://s42.photobucket.com/user/sixshootertexan/media/177%20reg/DSC00411_zpssmphchzc.jpg.html)


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Title: Re: .177 Regulated Rifle Build
Post by: Motorhead on June 23, 2017, 09:02:07 PM
Nice bit of work right there ... very cool
Title: Re: .177 Regulated Rifle Build
Post by: Monkeydad1969 on June 23, 2017, 11:37:11 PM
Oh, I really like that.  Cool way to install the reg on a tube.  Very clean.

The Monkey
Title: Re: .177 Regulated Rifle Build
Post by: Christopher on June 24, 2017, 12:13:55 PM
Looking great!! Where did you get your Timney trigger and what model is it?

Thank you,
Chris
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on June 24, 2017, 12:40:45 PM
Thanks everyone.
I got the Timney off Ebay. It's for a 1903 Springfield. It's been modded a little to fit.
Title: Re: .177 Regulated Rifle Build
Post by: Motorhead on June 24, 2017, 03:27:35 PM
Thanks everyone.
I got the Timney off Ebay. It's for a 1903 Springfield. It's been modded a little to fit.

Looks like a Calvin Elite ... similar to what WAR is using on Warp/Flex guns.
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on June 24, 2017, 03:31:00 PM
No just the Featherweight deluxe with safety.
Title: Re: .177 Regulated Rifle Build
Post by: nielsenammo on June 24, 2017, 07:24:11 PM
Ricky that looks awesome.  Very nice so far.
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on June 24, 2017, 09:21:35 PM
Thanks Neil.
Pressure regulator was only at 1000psi from the factory. It had .015" worth of shims in it. I replaced those for a single .020" shim to bring the pressure up to 1250psi. We'll see how it goes tomorrow.

(http://i42.photobucket.com/albums/e330/sixshootertexan/Reg177/20170624_231342_zpsfp8oerwn.jpg) (http://s42.photobucket.com/user/sixshootertexan/media/Reg177/20170624_231342_zpsfp8oerwn.jpg.html)
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on June 25, 2017, 09:40:54 AM
With the higher pressure it now response to the power adjuster.
AA 10.3 average 791fps
AA 8.4 average 840fps

Need to do a little deburr work on the valve and make a few more changes to the air flow and I'll be happy with it.
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on July 04, 2017, 12:07:28 PM
Well lets see how dropbox does.

I've been camping and have not been able to work on the rifle. I was itching to shoot it so I mounted a scope to see what kind of groups I can get. Zeroed it in at 30 yards with AA 10.3gr pellets @ 810FPS.

https://www.dropbox.com/s/41yspieynd7zn6y/20170704_130213.jpg?dl=0

10 shots in the left side next to the dime.
https://www.dropbox.com/s/3j35xg83w8nh0gl/20170704_130423.jpg?dl=0


Title: Re: .177 Regulated Rifle Build
Post by: Christopher on July 04, 2017, 02:09:25 PM
Dropbox Links to the pics work good. It sucks that the first pictures of your build are gone. Anyways.....Nice grouping.  You gonna do a custom stock yourself?

Thanks,
Chris
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 01, 2017, 09:17:09 PM
Got my stock in. It's the Boyds Thumbhole Varmint in Ripple Sky.

(https://photos-1.dropbox.com/t/2/AAD5w0w31zRxQpO8YGmUQ2K9kQApIZCOZ-H636jIoGUX1w/12/26093128/jpeg/32x32/1/_/1/2/20170901_230049.jpg/EKaO1M0FGAYgAigC/XrBmYnVO9GQ3tJ9gY0dsbfWVkHpJsp02E8eKIwRU264?size=2048x1536&size_mode=3)

(https://photos-6.dropbox.com/t/2/AACWWJTUFV9EWxQwDZa3_EnJiw4UsMegm7GTd-4iEN-ITw/12/26093128/jpeg/32x32/1/_/1/2/20170901_230102.jpg/EKaO1M0FGAYgAigC/faf_jLBmJh3bECbzGwuJFf6-itP7hbpLmUf-TAZnx3o?size=2048x1536&size_mode=3)
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 01, 2017, 09:22:10 PM
I also got my air tube back from the gun drillers and machined the threads in it. Then made a end plug.

(https://photos-2.dropbox.com/t/2/AAB_DPTAEKcLU4ZfeStgQnEoRhTkrykN-yfesb-y_Jn5zQ/12/26093128/jpeg/32x32/1/_/1/2/20170901_231840.jpg/EKaO1M0FGAcgAigC/Q8C0whPCZl9Abi8pS9nRidweoYbp_x0-ScZM5Ra7Zs4?size=2048x1536&size_mode=3)
Title: Re: .177 Regulated Rifle Build
Post by: Christopher on September 02, 2017, 04:30:38 AM
Question for ya sixshooter,
What did the gun drillers do to your air tube? I'm imagining them drilling a piece of round stock or perhaps boring some thick walled tubing to a thinner wall. I may be way off base but please elaborate....

Thanks,
Chris
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 02, 2017, 08:29:25 AM
It was a solid piece of 7075 1-1/8 diameter. . I had it drilled .812" 19" deep. I then threaded that end with a SAE J-Port and made a plug for it. I drilled and tapped the other end 5/8-18 for the regulator.
Title: Re: .177 Regulated Rifle Build
Post by: Monkeydad1969 on September 02, 2017, 10:31:20 AM
Thinking we're needing pics... 8)
Title: Re: .177 Regulated Rifle Build
Post by: Christopher on September 02, 2017, 11:02:09 AM
Thanks sixshooter, that is going to be a serious pressure vessel. Out of curiosity, why did you have it drilled .812"? Was that as big as they could go? Or by design? Who did you have do the drilling for you? I would be interested in contacting them.

Chris
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 02, 2017, 07:46:35 PM
Christoper .812" is the minor diameter for the SAE J-Port which is a 7/8-14 thread. I calculated the PSI rating using the thread size of 7/8". That gives it a working pressure of 4600psi. The plug I made has a o-ring to seal the tube before threads so that gives the tube even more of a PSI with the .156" wall thickness. You can find gun drillers about any where you live. We use a couple here in the Houston area.

Joe I'll get some pics soon. I just figured out how to use dropbox for pics. Right now I'm really busy between work and helping my best friend get his house back into a livable state after Harvey. I've spent the last 2 days sheet-rocking and tape and floating. He should be able to move back into his house tomorrow. We'll have his bedroom and bathroom ready so he can sleep again in his own home.
Title: Re: .177 Regulated Rifle Build
Post by: Monkeydad1969 on September 02, 2017, 07:57:13 PM
Christoper .812" is the minor diameter for the SAE J-Port which is a 7/8-14 thread. I calculated the PSI rating using the thread size of 7/8". That gives it a working pressure of 4600psi. The plug I made has a o-ring to seal the tube before threads so that gives the tube even more of a PSI with the .156" wall thickness. You can find gun drillers about any where you live. We use a couple here in the Houston area.

Joe I'll get some pics soon. I just figured out how to use dropbox for pics. Right now I'm really busy between work and helping my best friend get his house back into a livable state after Harvey. I've spent the last 2 days sheet-rocking and tape and floating. He should be able to move back into his house tomorrow. We'll have his bedroom and bathroom ready so he can sleep again in his own home.

Good on you... :D
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 10, 2017, 10:13:51 AM
Got to inlet the stock today.

https://www.dropbox.com/s/0538lfktaa98v8k/20170910_072945.jpg?dl=0
https://www.dropbox.com/s/xhnd05kyuhi7byj/20170910_102140.jpg?dl=0
https://www.dropbox.com/s/xhnd05kyuhi7byj/20170910_102140.jpg?dl=0
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 10, 2017, 10:21:39 AM
Chrony #'s AA 8.4gr .177  High 860 Low 821 Average 844 ES 39 SD 10 Average FTLB 13.29

860 3000psi
857
855
851
853
853
854
855
850
848
851
849
846
858
851
848
843
837
834
838
833
837
836
832
832
821
831
832
834
836
826
841
851
853
857
858
855
858
855
842
832 1000PSI
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 10, 2017, 10:24:19 AM
19 shots at 30yds.

https://www.dropbox.com/s/48bumwelrkzxbvb/20170910_115029.jpg?dl=0
https://www.dropbox.com/s/6ibpuu6pstkqx2c/20170910_115036.jpg?dl=0

(https://photos-5.dropbox.com/t/2/AADvwOPykdFKaVPVDlGkjSe4IbIs3XT71QKxnPlgVL2MJQ/12/26093128/jpeg/32x32/1/_/1/2/20170910_115029.jpg/EKaO1M0FGBEgAigC/oM7IXGo0BvJZ15vYIsKGrVgk2h6jLcDh2glLCuvC0SU?size=2048x1536&size_mode=3)

(https://photos-4.dropbox.com/t/2/AADcvz9EHvrYBi2qcoobkk7Ir6tUTiL83Go5YAnYZ3subw/12/26093128/jpeg/32x32/1/_/1/2/20170910_115036.jpg/EKaO1M0FGBEgAigC/S5A3-8SNKt1eWf5t7yQoNFS8yCN3ockV8SNLl_aB9CM?size=2048x1536&size_mode=3)
Title: Re: .177 Regulated Rifle Build
Post by: Alan on September 10, 2017, 11:16:20 AM
No pix here either, just question marks.
Title: Re: .177 Regulated Rifle Build
Post by: Christopher on September 10, 2017, 07:20:58 PM
Wow sixshooter, that thing looks sweet!!! And its accurate to boot. I'm sure your proud of it and have put allot of time and effort into it....looks like it has paid off for you. How many cc's is the reservoir?

BTW, checked around for gun drillers and couldn't find any local...finally found one in California, wanted more to drill out the tubing than what I give for it :o. May try to find some others.....

Chris
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 10, 2017, 08:30:05 PM
Thanks Christopher. Most places charge a minimum and it's not cheap.

Ok I opened a postimage account so lets try it out.
(https://s26.postimg.org/58fv7ocux/20170910_072945.jpg) (https://postimg.org/image/xy2r4bgut/)
(https://s26.postimg.org/4l29a6dy1/20170910_102213.jpg) (https://postimg.org/image/lll5iuqz9/)
(https://s26.postimg.org/4hn51wahl/20170910_102140.jpg) (https://postimg.org/image/93j9a8w0l/)
Title: Re: .177 Regulated Rifle Build
Post by: steveoh on September 10, 2017, 09:58:35 PM
Awesome project! And I love the silver metal against that blue stock.
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 11, 2017, 05:40:36 AM
Thanks Steve. I plan on anodizing it blue than hydro dip it with a see thru carbon fiber pattern.

Christopher it has 160cc in the reservoir plus the plenum. I forgot to measure the plenum so don't know how big it is. I lost some of the original size plenum do to a design change. 
Title: Re: .177 Regulated Rifle Build
Post by: Monkeydad1969 on September 12, 2017, 08:46:44 PM
Very nice.  I think I need one...lol.
Title: Re: .177 Regulated Rifle Build
Post by: sixshootertexan on September 13, 2017, 05:22:09 PM
Today's 50 yard target. Not much wider than the 30 yard target. Still got some tuning to do and some other things that should help to make it more accurate.

(https://s26.postimg.org/svg3f6yah/20170913_185131.jpg) (https://postimg.org/image/tkyvrjytx/)
(https://s26.postimg.org/joxsrwt21/20170913_185141.jpg) (https://postimg.org/image/5ii1woi6t/)