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StraightShooter
08-30-2008, 7:59 AM
Alright, i finally got time to spin up the barrel for my surgeon action and finish my rifle. First off, here are the specs for the rifle.

Surgeon short action repeater
Mcmillan a5
Badger BDM
Bartlein MTU 5R in 1.7.5 twist finished just under 26 inches
NIghtforce 5.5-22x50 NP-R1
TPS rings
Harris bipod
Timney trigger

From start to finish the build took 8 weeks. I bought the McMillan stock, Badger bottom metal and nightforce used but in new condition so the only reason it took 8 weeks was because the barrel took 8 weeks to get here.

First, i dialed in the barrel at the breech end to within 0.0002". I decided to use a three jaw chuck because it was heavier than my 4 jaw and as long as I could get it dialed in perfectly on the 3 jaw i figured it was a better option. I also used a floating chambering reamer holder that I made previously. I used a PTG range rod with a fitted pilot to dial the muzzle end in.


http://i73.photobucket.com/albums/i228/Mrpaintball01/Picture016.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Picture017.jpg

I used a lathe spider that I made to make adjustments at the muzzle end.

http://i73.photobucket.com/albums/i228/Mrpaintball01/Picture018.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Picture015.jpg

StraightShooter
08-30-2008, 8:02 AM
I then faced off the end before turning the shank.

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02193.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02199.jpg

I then machined the counterbore.

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02202.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02203.jpg

StraightShooter
08-30-2008, 8:05 AM
Next up was threading. I set the lathe up and made a light first pass to check the thread pitch.

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02204.jpg

I kept threading til the action would just start to pick up a tread then I went .001" at a time until i could screw on the action all the way with a really tight fit.

Finished thread

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02208.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02210.jpg

StraightShooter
08-30-2008, 8:10 AM
Next up was the long and tedious part of the day...... chambering. I set up the lathe with my floating reamer holder and fitted pilot. I didnt want to rough out drill the chamber before so I did the whole thing with the finish reamer which ended up taking a couple hours. I got to within .002" of where i needed to be for headspace and then reamed the last bit by hand to get the headspacing perfect. The bolt closes freely on the go gauge but wont even budge on the same gauge with scotch tape on the back so i think i ended up with perfect headspace on the gauge. The chamber cut smooth as butter with absolutely no chatter. I used a wood dowel and fine sand paper to polish it to a mirror finish.

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02219.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02222.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02223.jpg

StraightShooter
08-30-2008, 8:14 AM
I then cut the barrel to length and crowned it. Unfortunately i forgot to take pictures of this step. After i cut it i dialed in the muzzle end and faced it off. Then I crowned it.

Pic of the finished crown.

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02226.jpg


And some finished pics:

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02224.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02227.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02228.jpg

StraightShooter
08-30-2008, 8:15 AM
http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02229.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02230.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02231.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02232.jpg

StraightShooter
08-30-2008, 8:17 AM
http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02233.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02234.jpg

http://i73.photobucket.com/albums/i228/Mrpaintball01/Surgeon%20build/DSC02236-1.jpg

This was my first barreling/chambering job and I am very pleased with how it turned out. I wont be able to get it to the range for about a week to do load development and shoot some groups but as soon as i get the time ill post a full range report. Not bad for a 20 year old self taught machinist eh? :D

BigBamBoo
08-30-2008, 9:07 AM
............

StraightShooter
08-30-2008, 9:20 AM
I used a chop saw (bandsaw) to cut mine and then turned it down on the lathe. You technically could cut it on a lathe too. Heck, you could even use a hack saw as long as you dont leave it that way.


VERY nice! My shooting buddy is a machinist and is planning on a build like yours. I am fowarding this thread to him.

Thanks for sharing it with eveyone.

One question.....what did you use to cut down the barrel?

Take care,Stan

dribbler
08-30-2008, 10:10 AM
straightshooter do you live in la cresta?

StraightShooter
08-30-2008, 10:24 AM
straightshooter do you live in la cresta?


Yessir, only during the summer though when im out of school.

H2H
08-30-2008, 10:29 AM
very nice work.

dribbler
08-30-2008, 10:57 AM
Yessir, only during the summer though when im out of school.

no **** man, im in la cresta too.

StraightShooter
08-30-2008, 11:22 AM
no **** man, im in la cresta too.

Cool, how long have you lived up here? Ive been here for about 10 years now. There used to be nobody up here. How far back in are you? Did you recognize my car or the house in the pictures or something?

technique
08-30-2008, 11:40 AM
Nice rifle, I like .243!

dribbler
08-30-2008, 1:13 PM
Cool, how long have you lived up here? Ive been here for about 10 years now. There used to be nobody up here. How far back in are you? Did you recognize my car or the house in the pictures or something?


I been here bout 7 years, just graduated from MV in June. Yea man i recognized your house, your in the one of the sister houses which puts you about a quarter mile down alc from me. matter of fact, im pretty sure we did your vinyl fence, and/or one of the properties next to you.

ar15barrels
09-05-2008, 10:02 PM
That nightforce has an illuminated reticle.
I can expect to see you out at APS on the evening of the 27th right...

StraightShooter
09-05-2008, 10:26 PM
That nightforce has an illuminated reticle.
I can expect to see you out at APS on the evening of the 27th right...

Honestly im not really sure I want to jump in and shoot a night match first. I dont think it would go very well. Id rather get a solid dope shooting a match where I can see first but I may make it out just to see how it goes. I you dont mind, ive got some questions..... i sent ya a pm.

ar15barrels
09-05-2008, 10:31 PM
Honestly im not really sure I want to jump in and shoot a night match first. I dont think it would go very well. Id rather get a solid dope shooting a match where I can see first but I may make it out just to see how it goes. I you dont mind, ive got some questions..... i sent ya a pm.

Just do it.
It's short range.
I doubt we do much past 300yds at night.
The match starts during the day so the further shots will be before dark.

StraightShooter
09-05-2008, 10:47 PM
That APS match is a team match, are you sure it would be ok for a newbie?

ar15barrels
09-05-2008, 10:54 PM
That APS match is a team match, are you sure it would be ok for a newbie?

Just do it.
You wil be fine.
He's still looking for more people to make more teams.

cobra198
09-05-2008, 11:32 PM
Awesome job! Your skills are impressive to say the least. Looks like a sweet shooter.

StraightShooter
09-05-2008, 11:41 PM
Awesome job! Your skills are impressive to say the least. Looks like a sweet shooter.

Hey thanks, i took it out today to put the first rounds through it and it is a shooter. Im extremely pleased with how it turned out.

Mute
09-07-2008, 5:08 PM
Congrats on finishing the rifle. Beautiful job!

Guntech
09-07-2008, 5:17 PM
Nice job

hybridatsun350
09-07-2008, 11:03 PM
Wow, that's one great looking rifle! Awesome work! :D