Home | Ezine | Forums | Links | Contact
NitroExpress.com: My 577 build.

View recent messages : 24 hours | 48 hours | 7 days | 14 days | 30 days | 60 days | More Smilies


*** Enjoy NitroExpress.com? Participate and join in. ***
You are not logged in. [Login] Main Index · Search · Active Topics
New user · Who's Online · FAQ · Calendar

Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing
Previous topic Previous   Search Results   Next topic Next   Threaded Mode Threaded  

Pages: 1
450_366
.400 member


Reged: 17/01/07
Posts: 1068
Loc: Sweden, west-coast.
My 577 build.
      #130180 - 21/03/09 11:25 PM

So, it starts.

This is going to be a double 577 with two extra set of barrels in 12/12 and 12/577. The top gun is a merkel 12 bore that will be gutted and the barrels will be used for the 12/577, and the wood and small parts are to be kept for furher projects. The buttom one is a simson that i will keep the barrels and use them as they are, it will also get a couple of 577 barrels on a shoe lump, regulated for the 650grs woodleight at about 1950fps.





The barrels are from lothar walter and are pull button rifled, it seems as they are a little tighter then the old ,577" at a 14,55mm bore so i had to take the pilot on my new jgs reamer down 0,1mm in diameter. The round bar is a cr/mo steel similar to the american 4140 that will be machined to a lump and braced on to the barrels.

I will run into a lot of problems on this one, so i will try to get it all in writing and photos.

Edited by CptCurl (01/02/10 01:26 PM)

Post Extras: Print Post   Remind Me!   Notify Moderator  
peter
removed


Reged: 11/04/07
Posts: 1493
Loc: denmark
Re: My 577 build. [Re: 450_366]
      #130193 - 22/03/09 01:20 AM

good luck andreas

i will look forward to follow this build.

cheers

peter

Post Extras: Print Post   Remind Me!   Notify Moderator  
Birdhunter50
.375 member


Reged: 03/06/07
Posts: 815
Loc: Iowa,U.S.A.
Re: My 577 build. [Re: peter]
      #130197 - 22/03/09 04:52 AM

450 366,
Good luck on your new project, you have taken on quite a job! I hope it all goes well for you. Please do send pictures as you go along, it makes it alot more interesting. Bob H.

Post Extras: Print Post   Remind Me!   Notify Moderator  
JACKP
.224 member


Reged: 04/03/09
Posts: 29
Loc: North Carolina
Re: My 577 build. [Re: 450_366]
      #130511 - 26/03/09 09:56 AM

Good luck with this project. I will be looking forward to seeing photos and comments on your progress.

Post Extras: Print Post   Remind Me!   Notify Moderator  
450_366
.400 member


Reged: 17/01/07
Posts: 1068
Loc: Sweden, west-coast.
Re: My 577 build. [Re: 450_366]
      #152209 - 30/01/10 10:13 AM

Almost a year has past and between my family and our house, together with some other projects, this one had to wait. But i had time to gear up a bit for the build in the meantime.

I did get some time the last week and at least got something done.

To be able to give the barrels a nice contour i added a hydraulic copy device to my old lathe.



Here i start with taking the shotgun barrels profile and add a cylindrical peace over the chambers, some filing and stonig and it seems to be satisfying. It tapers rapidly in front of the chambers from 28,5mm, untill it reaches the end of the forend at 19mm diameter.

To be able to turn the barrel i had to get one of these.



Its a hydraulic steady rest that i searched for almost a year to find, and then it was in the US. Here around they are not hard to find, but if i did find one it costed as a car or it came with a cnc lathe attatched.

Last time i chambered a barrel it took ages, and i had to reverse the reamer every tenth of milimeter to get the f....g chips out. So i had to do something before i did it again.



I took a peace of aluminium and a couple of bearings and presurised the lathe with cooling fluid.
Together with a peace over the end of the barrel so it sealed up inside the lathe it worked quite well actually.





The next thing to do is to profile the barrels from the dummy i made. Then its the matter of the lump, first i intended to mill it, but that sounded quite boring so there must be an alterative.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"

Edited by CptCurl (24/03/10 09:39 PM)

Post Extras: Print Post   Remind Me!   Notify Moderator  
rigbymauser
.400 member


Reged: 15/05/05
Posts: 1971
Loc: Denmark
Re: My 577 build. [Re: 450_366]
      #152256 - 30/01/10 08:40 PM

Interesting project 450-366.

Thanks for sharing .

Post Extras: Print Post   Remind Me!   Notify Moderator  
4seventy
Sponsor


Reged: 07/05/03
Posts: 2210
Loc: Queensland Australia
Re: My 577 build. [Re: 450_366]
      #152259 - 30/01/10 08:53 PM

Andreas,
A very interesting project indeed. Looking forward to more photos and story on this one.
Thanks for showing us and please keep all the details coming!

Post Extras: Print Post   Remind Me!   Notify Moderator  
Paul
.400 member


Reged: 28/08/07
Posts: 1031
Loc: Melbourne, Victoria, Australia
Re: My 577 build. [Re: 4seventy]
      #152356 - 31/01/10 07:35 PM

Good luck Andreas,
seeing the skill and equipment required, you've convinced me not to try.

I would love to make a .577 db rifle, though. The 650-grainer at the 1650fps of the NfB load would be my pick - gentler on the shotgun action and the shooter, I imagine, if not quite up to elephants.

- Paul

Post Extras: Print Post   Remind Me!   Notify Moderator  
450_366
.400 member


Reged: 17/01/07
Posts: 1068
Loc: Sweden, west-coast.
Re: My 577 build. [Re: 450_366]
      #156894 - 19/03/10 07:46 AM

I finally got one of the barrels turned, but had to change the profile as it wouldnt work with the action. And as usuall something goes wrong, this time it was my live centre that broke and the vibrations from the bearings transplanded to the barrel giving it an ugly surface.
Now this wouldnt be a problem if it wasnt the last run and i didnt dare try another run so i would end up with a to thin barrel.
But some sanding and it turned out fine.

Now, i put the barrel on a scale and it stopped at 800grams, twice that is 1,6kg, some ribs, sights etc. and i think it will be around 1,9kg.

That would mean it will stop the scale somewere under 4kg, ouch.

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"

Post Extras: Print Post   Remind Me!   Notify Moderator  
whitey
.275 member


Reged: 20/01/10
Posts: 83
Loc: Colorado, USA
Re: My 577 build. [Re: 450_366]
      #156898 - 19/03/10 09:53 AM

Very interesting and am looking forward to seeing more of the project. And as A complete novice
on DR. I would love to see more members post their projects and ideas so maybe I and many more could gain some knowledge. Whitey

Post Extras: Print Post   Remind Me!   Notify Moderator  
DarylS
.700 member


Reged: 10/08/05
Posts: 26624
Loc: Beautiful British Columbia, Ca...
Re: My 577 build. [Re: whitey]
      #156900 - 19/03/10 10:17 AM

Paul - the .577 BPE was popular for Elephants by some hunters as noted in Greener's book by some hunter's writing in "The Field" I think it was. The heavy load was the 650 and 160 or 165gr. powder me thinks he remembers. The ability to use a hardened bullet raised this calibre from the smaller game fields, to include dangerous game.

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V

Post Extras: Print Post   Remind Me!   Notify Moderator  
4seventy
Sponsor


Reged: 07/05/03
Posts: 2210
Loc: Queensland Australia
Re: My 577 build. [Re: 450_366]
      #156922 - 19/03/10 06:05 PM


Glad to hear that the barrel ended up ok.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Birdhunter50
.375 member


Reged: 03/06/07
Posts: 815
Loc: Iowa,U.S.A.
Re: My 577 build. [Re: 450_366]
      #157275 - 24/03/10 09:49 AM

If my math is right, 4 kilos would be equal to 8.8 pounds. Ouch is right! I'm glad it is going to be you shooting it instead of me. Good Luck with your build anyway. A very interesting thread.
Bob H.

Post Extras: Print Post   Remind Me!   Notify Moderator  
450_366
.400 member


Reged: 17/01/07
Posts: 1068
Loc: Sweden, west-coast.
Re: My 577 build. [Re: 450_366]
      #157695 - 28/03/10 07:19 AM

First thanks to all the encouraging words, they are needed.

Now, the reason i broke the centre is that i was pushing it against an aluminium centre that i had put in the chuck. This enabled me to use the full lenght of the barrel as LW doesnt expect anyone to build a double with the 577 barrels an make them only 65cm long.

As you see i need some room for the steady rest, and next time i will turn everything down to a cylinder at the maximum diameter as the force of the steady rest pushes the bed away when pulled over a step leaving an uncut portion of the barrel some 3mm wide.

So i took the centre apart and its seems it had two standard bearings on it, no wonder it broke.

Here i changed the bottom bearing against an axial bearing instead and now it held up ok.

Now the barrels are turned and i need to construct a lump with two conic holes with a slight convergence to allow the barrels to cross at say 30m. Thats no fun on an old mill so i got one of these.


Its my new wire edm.

Hm, i wonder how it works?

--------------------
Andreas

"Yeas it kicks like a mule he said, but always remember that its much worse standing on the other end"

Edited by CptCurl (29/03/10 12:28 AM)

Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1


Previous topic Previous   Search Results   Next topic Next   Threaded Mode Threaded  

Extra information
0 registered and 5 anonymous users are browsing this forum.

Moderator:  CptCurl 

Print Topic

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Topic views: 1239

Rate this topic

Jump to

Contact Us NitroExpress.com

Powered by UBB.threads™ 6.5.5


Home | Ezine | Forums | Links | Contact


Copyright 2003 to 2011 - all rights reserved