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View Full Version : New Precision .308 Home Build Part 1, long winded and pic heavy


Len
09-25-2010, 2:48 PM
I built what I thought was going to be my ultimate long range .308 at the beginning of this year, a DPMS based heavy barrel AR .308.
With a full mag and scope it ended up weighing in at just shy of 20lbs.

It was accurate enough and I wasn't really going to carry it a long way but it was just too much.
I sold the DPMS here on Calguns and decided to build a nice bolt gun.

I looked around and decided a Remington SPS Tactical in .308 would be a good place to start.
The Hogue stocks are OK but I wanted something different, I looked around the web and found this;
http://xlrindustries.com/index.html
I talked to Kyle the owner and ordered what I wanted with a 3 week wait.

I picked up the Remington Yesterday and this morning I went to work.
I had to have a Badger tactical bolt knob, I read that sometimes with the added leverage the handle gives you could rip the factory silver soldered handle off the bolt if you had a sticky extraction.
I remember seeing several fixes for this without buying a new bolt and all the fitting required for a new bolt.

I ended up doing what looked like the easiest for me to do at home.
Its allot of work but it turned out great, I drilled 3 holes in the bolt handle through the bolt, tapped them 6-48 and used Torx scope base screws to give it some added strength.

I then ground down the original bolt handle and threaded it for the Badger knob.
I'm sure I am not the first 'do it your selfer' to do this but all I have is a drill press, files, a tap and die set and time.

Part two when the stock gets here.
http://i336.photobucket.com/albums/n358/longbowman/IMG_0872.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0877.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0880.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0881.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0884.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0889.jpg

Len
09-25-2010, 2:49 PM
http://i336.photobucket.com/albums/n358/longbowman/IMG_0890.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0893.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0892.jpg

thevic
09-25-2010, 2:54 PM
That is very cool. Can you pm me the info about reinforcing the bolt?

IrishPirate
09-25-2010, 2:55 PM
lookin' good! can't wait to see Pt. 2!!!

straykiller
09-25-2010, 3:46 PM
Very niice I'll be keeping my eye out for your next part

nagorb
09-25-2010, 11:06 PM
Nice.

What are you planning on doing with the hogue stock?

Secret
09-25-2010, 11:11 PM
woah... that looks really clean

slappomatt
09-25-2010, 11:16 PM
nice job, I probably should have gone that route too. I did the resolder thing and changed my bolt handle to one of the longer target ones. came out ok but I think my timing is a tiny bit off now.

as a fellow DIY'er I can't wait to see the next installment.

damon1272
09-26-2010, 6:15 AM
Great job! Did you grind the bolt handle round till you got to the tap size needed?

kendog4570
09-26-2010, 7:58 AM
[QUOTE=Len;5018496]Ihttp://i336.photobucket.com/albums/n358/longbowman/IMG_0880.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0881.jpg
QUOTE]

Be VERY CAREFUL when dressing screws down inside the bolt. If you have a slightly oversize hole and threads inside your bolt, and slightly undersize threads and bearing surface on the bolt plug, the tolerance stackup can lead to trigger malfunctions. Not real common, but it does happen.
It would be best to clean them up with the bolt in a lathe and use a small boring tool.

Len
09-26-2010, 8:34 AM
Great job! Did you grind the bolt handle round till you got to the tap size needed?

Yes, I missed a couple of photos in the heat of installation.

Kendog,
Thanks for the heads up.
I have been dremeling a long time, I did not get close with the carbide, I finished it off with very fine sanding drum and then cratex. All the debris in the picture is the threads I ground off.
I wish I had a lathe and a mill.

kendog4570
09-26-2010, 8:56 AM
Yes, I missed a couple of photos in the heat of installation.

Kendog,
Thanks for the heads up.
I have been dremeling a long time, I did not get close with the carbide, I finished it off with very fine sanding drum and then cratex. All the debris in the picture is the threads I ground off.
I wish I had a lathe and a mill.

Friends don't let friends use Dremels! :D


I made a handy fixture to turn the threads for knobs.


http://i721.photobucket.com/albums/ww211/kendog4570/Bolt%20Fixture/KendogBoltFixture021.jpg


On the last one I did, the handle popped right off and you could see the hard solder was only bonded to less than 50% of the surface it was intended to.
Good thing it happened in the shop, instead of the field.

xxdabroxx
09-28-2010, 10:13 PM
damn nice fixture you made.

kendog4570
09-29-2010, 5:59 AM
damn nice fixture you made.

Thanks. I can provide this service to you guys, if you like. Let me know.

JTROKS
09-29-2010, 6:30 AM
Thanks. I can provide this service to you guys, if you like. Let me know.

That is nifty! I was putting off the tactical bolt knob for a while now due to not having the proper fixture and CNC. :) But now that someone that is very skillful with their hands and limited amount of tools grinding, shaping and threading the bolt handle, I need to get off my lazy ***** and start working on my guns again.

Please keep this thread going. I'm assuming the bedding will be documented. I'm tagging this for future references. Thanks.

gemini1
09-29-2010, 1:26 PM
tagged

Len
09-29-2010, 1:35 PM
[QUOTE=JTROKS;5038891]
Please keep this thread going. I'm assuming the bedding will be documented. I'm tagging this for future references. Thanks.

One of the reasons I am buying the XLR chassis is NO bedding is necessary.

kermit315
09-29-2010, 4:00 PM
tagged to follow. This is interesting.

Len
09-29-2010, 4:18 PM
OK,
I got my Ken Farrell 20 MOA G Force steel scope rail mounted.
This is a real slick setup, it has a 1/4" locking stud that keeps the heavy scope and rings from reeking havoc on those tiny 6-48 mounting screws.
Two weeks and two days into the three week wait for the XLR chassis.
http://i336.photobucket.com/albums/n358/longbowman/IMG_0912_2.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0910_1.jpg
http://i336.photobucket.com/albums/n358/longbowman/IMG_0909_2.jpg

kendog4570
09-29-2010, 6:42 PM
That is nifty! I was putting off the tactical bolt knob for a while now due to not having the proper fixture and CNC. :) But now that someone that is very skillful with their hands and limited amount of tools grinding, shaping and threading the bolt handle, I need to get off my lazy ***** and start working on my guns again.

Please keep this thread going. I'm assuming the bedding will be documented. I'm tagging this for future references. Thanks.

I think I an do it for you cheaper than you can tool-up for the job. Let me know if I can be of service.

a1fabweld
09-29-2010, 8:46 PM
WOW Len! Your work is very impressive for the limited amount of tools you have to work with. Nice job!

JTROKS
09-29-2010, 10:15 PM
I think I an do it for you cheaper than you can tool-up for the job. Let me know if I can be of service.

If you weren't 2 hours and some minutes away from me I'd probably let you thread the bolt handle and bed it. Come to think of it I'd like to get the barrel threaded for a muzzle brake too. And that's for my PSS 308 and SPS 300WSM.

evollep3
09-29-2010, 10:30 PM
very nice i been thinking about the same stock my self it looks lite and its Different! :)

thevic
09-29-2010, 10:42 PM
I was thinking about threading my own handle since my neighbor knows how and has plenty of taps and dies.

Then i noticed the difference in hand thread and machine. If done properly with machine, your smith will taper the bolt knob to that handle to make it look like one solid piece.

I'll let kendog have a go at it :)

killshot44
09-30-2010, 12:28 AM
If you weren't 2 hours and some minutes away from me I'd probably let you thread the bolt handle and bed it. Come to think of it I'd like to get the barrel threaded for a muzzle brake too. And that's for my PSS 308 and SPS 300WSM.

Ken does great work. He threaded a barrel for me. :) He's in Santa Cruz, drop off your parts and enjoy a day at the beach.

kendog4570
09-30-2010, 7:01 AM
I was thinking about threading my own handle since my neighbor knows how and has plenty of taps and dies.

Then i noticed the difference in hand thread and machine. If done properly with machine, your smith will taper the bolt knob to that handle to make it look like one solid piece.

I'll let kendog have a go at it :)



Thanks Vic.
There is always a little transition with the Badger knob. There is not enough "meat" on a Remington handle to make a seamless fit.

http://i721.photobucket.com/albums/ww211/kendog4570/BoltKnob.jpg