View Full Version : Project "Silent 22-45" Part 4

July 23, 2008, 10:00
OK, obligatory disclaimer here: DO NOT start a suppressor project without FIRST obtaining your approved Form 1 in hand, PLUS any state paperwork that may be necessary in your state.

Well here is part Four.

The next step was to turn everything down to fit nicely together:


And then to sand everything down to a nice finish. First I hit it with 220 grit, then 320, then 400 and left it at 400. This pic shows me halfway down using the 320.


And now the tube assembled onto the reciever.


And the whole thing together minus the front site.


Here is a side by side of mine and my fathers. He did his with a 1.1 inch aluminum tube like we used on our .22 rifles. His is also a bit longer than mine (no joke please:))


Alrighty. Now it's time to mount the front site. Like I said in Part 2 I ordered a set of sites for the Ruger bull barrel for this project. The rear was easy cause it goes right into the same dove tail as the fixed site. The front site is screwed in. Anyone that does tapping on firearms should really invest in one of these kits.


But I did run into a problem. I had no idea what the correct TPI was. I couldn't find the info in any of my manuels! I expected it to be written on the package that the screw came in but NO, it was not. So, with my aging eyes I could not tell with my gauge if the threads were 40 or 36 TPI.


Well since I couldn't figure it out I decided to just drill and tap a peace of scrap laying around rather than chance screwing up the tube.


It's 40 TPI!!! I was right. Yeah I know, but really I DID think it was 40 TPI. . .I just wanted to be sure.


Well here was something I was not ready for. That stainless steel tube was HARD! I trashed the first drill bit by rushing things too much. Chipped the front right off of it. Oh well, another drill bit and LOTS more oil!!


And some pictures of threading.


And the mounted site. Please folks, if you're going to do any home bench gun smith hackory invest in a good set of screwdrives intended for firearms. They really do make a difference.


And the finished pistol.


And now some vids. I tried to shoot some into the dirt in front of the target and some into the wood and into the steel backstop. This first one is good except for the end when I get a phone call. LOL!

http://i79.photobucket.com/albums/j154/L1A1Rocker/th_shootingVid1.jpg (http://s79.photobucket.com/albums/j154/L1A1Rocker/?action=view&current=shootingVid1.flv)

And another vid without the phone call:)

http://i79.photobucket.com/albums/j154/L1A1Rocker/th_shootingVid2.jpg (http://s79.photobucket.com/albums/j154/L1A1Rocker/?action=view&current=shootingVid2.flv)

I hope to have a better "range report" in the near future.

Well this has been a fun project. Not nearly as nerve wracking as the Mauser project. I've done and helped with a total of 6 form 1 suppressor projects and have learned a lot about lathe work. I'm still trying to decide what my next project will be. I've considered another integral of some sort using K baffles or maybe a "can" of some sort. I don't know.

Hope you have liked the series. Please feel free to post any comments or suggestions. I'm still just a novice and any advice is much appriciated.

Thank you

July 23, 2008, 22:28
Very well done - have you tried varoius ammo's in it - I notice that it can make a HUGE difference in suppressed guns. :shades:

July 24, 2008, 12:28
big diff in sub sonics vs HV

were you using HVs?

L Haney
July 24, 2008, 16:21
Thanks for taking the time and trouble to post all this. This kind of stuff really helps anyone considering doing this type of project, especially if they're not a machinist. And damn few of us are. Your constant reminders about having your paperwork in order before starting are also spot on. This is NOT a trivial thing to keep in mind. I don't agree with most of the firearm laws, but they have teeth. So a warning to our younger viewers here. Really. Don't do this at the tech school machining shop on the sly. The penalties are just not worth it. (Rant off) Well done sir! Can't wait to see what's next!


July 25, 2008, 13:50
Thanks for the kind words folks. These rounds were HVs. I will be doing some sound and chronograph measurements in the near future to compare the HVs vs the sub-sonics. It has been my experance that sub-sonics in the Mk IIs do not run 100% without lightening the bolt. If the HVs are still super sonic out this heavilly ported barrel I will be switching to subs and lightening the bolt. I'm hoping to be able to get out and put it on paper tomarrow to see how my accuracy is.

Yep I agree completly that most all the gun laws are BS that only the law abiding obay anyway. BUT, I want to make sure that anyone wanting to do something like don't do it illegally out of ignorance of the law. It's very important that people know they have to have thier approved Form 1 IN HAND before starting. Many times folks think they can start on it after the forms are sent in and don't realize they have to wait untill the paperwork comes back. I hate to sound like a broken record but I really don't want some one to make a simple mistake and wind up in serious trouble.

Thank you folks for all you comments. I'm sorry it took a while to get back. My computer died on me a couple of days ago and I just now got a loaner.

August 20, 2008, 16:26
You might be able to make a brass catcher to muffle the breech noise. When shooting my Dad's ruger mk2 just dropping rounds into the chamber I got my hand under the mag well, and a piece of unburned powder, and a shaving of lead embedded themselves in my palm.

December 13, 2008, 03:30
what size barrel did you get 4 or 5- 1/2 ?

very nice machine work..love that stuff

did you pops every color his barrel? blue ?

December 15, 2008, 19:39
ahh 1 more..I could not find where you mentioned the black spacers? rubber / plastic?