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My first build

I put this up on the hide and High country shooters as well. I wanted to expand my business and get into complete rifle building so I bought a lathe and by a stroke of luck and had the chance to go down to Bob Pastor's place and he taught me how to chamber a barrel and how to thread. I came back home with a lot of knowledge and if you are thinking about getting into rifle building and can get invited down to the lathe cave I would go for it. I want to give a big thank you to Bob for his help!!!

The specs are a Rem 700 Action, High Tech stock, Lilja #4 SS 10 Twist 375 Cal barrel finished at 26 inch’s and chambered in a 375 Ultra Mag.
The first step was to get the action running true in the lathe fixture and after that cut and square the face of the action and clean up the threads with a tap. I apologize I cannot find my picture of the dial Indicator setup for the action truing or the chambering I think it was deleted by accident. Here is a picture of the that. I also lapped the lugs.
Faced_Action.JPG


The next step was to indicate the barrel in the fixture and face the tenon off, cut it to length, turn the tenon down to 1.062 as that is what let the recoil lug fit tight on the tenon, and thread it. In case anyone was wondering the barrel and the action where both running under ½ a 1/10 thousands on the dial indicators. Here is the finished result.


Threading_1.JPG


The next step was to cut the boltnose recess and here is a picture after that was finished.
Boltnose_Recess.JPG


Now it is time to chamber.
Chambering.JPG


Here is a picture of the rifle head spaced and finished.
All_Done1.JPG


I chambered this rifle tight and run out on the brass is 1 to 2 thousands of an inch as you will see here in a minute. Here is a new unfired case.
New_Unfired_Case.JPG


Here is the same case after it was fired.
Once_Fired_Case.JPG



Next was the bedding prep

Bedding_Prep_3.JPG


Bedding_Prep_2.JPG


Bedding_Prep_1.JPG


The bedding.

Bedding_1.JPG


Some load work up with out the brake installed.

100 Yards 3 shots with 270 Speer SPBT and 94gr of IMR-4831.
375_Rum_Target_1.jpg


100 Yards 3 shots with 270 Speer SPBT and 94.5gr of IMR-4831.
375_Rum_Target_2.jpg


Muzzle Brake Install.

Indicating the Barrel.
Indicating_Bore.JPG


Turning the tenon
Turning_Brake_Tenon.JPG


Threaded and ready to fit the brake.
Muzzle_Brake_1.jpg


Muzzle view
Muzzle_Brake_2.JPG


All done
Muzzle_Brake_3.JPG


I did some load work up after the brake install and here are some groups all are 3 shots at 100 yards.

375_Rum_350_SMK.JPG


375_RUM_350_SMK_1.JPG


Now it is time to stretch it legs a little bit I was shooting off a bipod with a rear bag. I tried at 600 yards to start but the first shot broke one of the ropes on the gong so the only one I had left was the 1020 yard since the last storm took the rest down. The rifle had never been past 100 yards up to this point. I dialed up 30 MOA and fired a sighter and I was high. I dialed back to 28.50 and hit the plate low. I went to 29.5 MOA and fired 3 shots.

Here is the rifles first group at 1020 yards with a 350 SMK 90grs of H-4831.
375_rum_1st_1020_yard_group_off_bipod.jpg


Wyatt's mag box install.

Wyatt_s_2.jpg


I have always liked speckled finishes on stocks and I wanted to try come up with a way to do that type of finish with Cerakote on metal so I after some testing I went ahead with it. The base coat is a light grey color I mixed and the real dark specks are sniper grey along with another grey color I mixed. The bolt, bottom metal, and brake are coated with Graphite Black. The stock is a High Tech that I painted a couple years back in forest green that is a stone finish. I added some high lights over the green with another stone finish paint that has grey, black, and white specks in it. I also shot some clear coat over it. Here are the pictures.

Close up of the color on the action and barrel.

Action_1.JPG


Barrel_12.JPG


Here is what the rifle weighs ready to go.
Ready_to_go_Rifle_weight.JPG


All put together.

Rifle_4.JPG


Rifle_5.JPG


Rifle_3.JPG


Rifle_1.JPG


Rifle_21.JPG




You cannot tell from these pictures but the scope has about a credit card thickness in between it and the rail. When I started this build I had a few goals in mind. I wanted a rifle that weighed 10.5lbs or less all ready to go, A repeater, and I wanted it to be 1000 yard + capable of taking Elk and Deer. Time will tell if it will meet all those goals or not but it is looking promising.
 
I am no smith and most of what you were describing went clear over my head. That said: sweet rig ya built there! I like that speckling on the barreled action, that is a slick look. Congrats!
 
Nice build. I like the color scheme.

Constructive criticism: Practice threading some more, I see way too much chatter on your threads and undercut. You should have no chatter at all. What size lathe do you have? Also, your relief cut where recoil lug meets the shoulder should be almost invisible, just enough to break the radius from the cutting tool.
 
Thanks guys!

The lathe is a 14x40 Grizzly and the lathe itself was causing the chatter. I worked with Grizzly on this and the lathe was determined bad and they sent out a new lathe. The new lathe does not seem to have the issue the old one did and I used that lathe for the brake install. As for undercut threads I was taught to cut the threads deep enough to allow the action to screw on nicely with minimal slop. That is how I cut them for the action and brake. Both the action and brake screw on nice with minimal slop. I am still learning and working on the relief cut I am hoping with some more practice I get it exactly how I want it and that is the way you described.
 
Great Write Up Kory!!!

Thanks for sharing with us and I suspect we'll see more than a few of your rigs floating round in a short while..

Rod

&!$%#$%*&!!!!!!! Snow
 
dakor, this is what my threads look like. There is a relief at the bottom of the shoulder, but just enough to do away with the tool radius. I don't use a relief cut for my threads, I think it looks better without it, but that's personal preference and the way my good friend Ronnie thought me.

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first builds are so much fun :)
its where you get to do things twice or thrice.. lol.
on my second build now, going better than the first.

the barrel looks cool. I generally dont care for anything except real bluing or SS, but yours is very cool.
 
Thanks. I like how it turned out and first builds are a learning experience I know that. :) I have 3 more lined up to build and I am hoping to start build #2 this week.
 

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