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Bighorn Origin Build Thread
- Thread starter Hondo64d
- Start date
Running a PRC out of a Wyatt's extended box. Other than having the action opened for the box, no mods to feed rails etc.
Carbon or steel because stockys has carbon tl3 prefits, just need to get a hunts long range lug and your all set
This place does proof pre fit barrels. https://straightjacketarmory.com/product-category/pre-fit-barrels/
Curious if anyone's planning to use the CA MPR Chassis? Hopefully no fitment issues.
christensenarms.com
Looks like a nice light weight folder. I'm hoping to to go this route when i get my Origin.
Modern Precision Rifle Chassis - Christensen Arms
Specs: Machined from 7075 Billet Aluminum Black Hardcoat Anodized or Desert Brown™ Anodized Accepts AICS-compatible short-action magazines or CIP-length long-action magazines. 14″ or 17″ Carbon Fiber Handguard with M-Lok™ Adjustable Carbon Fiber Cheek Riser (1″ adjustment) Adjustable Length of...
christensenarms.com
Looks like a nice light weight folder. I'm hoping to to go this route when i get my Origin.
Just got this put together yesterday. Built it up for my 12 year old daughter as a hunting / range gun.
Bighorn Origin LH
16.5” Proof Sendero 1:8 chambered by Ern @ Altus Shooting in 6.5 CM. Muzzle threaded 5/8x24
Trigger Tech Special
Manners MCS-CS LH Carbon Fill with mini chasis
Area 419 Hellfire Brake
Atlas Cal Bipod
NF 3.5-15x50
Badger Rings
Also have a SS 224 Valk Prefit for training. Rifle fits her perfect with plenty of room to grow.
Bighorn Origin LH
16.5” Proof Sendero 1:8 chambered by Ern @ Altus Shooting in 6.5 CM. Muzzle threaded 5/8x24
Trigger Tech Special
Manners MCS-CS LH Carbon Fill with mini chasis
Area 419 Hellfire Brake
Atlas Cal Bipod
NF 3.5-15x50
Badger Rings
Also have a SS 224 Valk Prefit for training. Rifle fits her perfect with plenty of room to grow.
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I will say the origin is like the gateway drug into other bighorn actions, case and point my new TL3
This is an awesome build! Props to you for getting/keeping your kid involved!!
I need to try to save up to do something like this for my wife. She is pretty small frame, and the package you put together here looks perfect for someone her size.
Thank you bro. Yeah, I got tired of buying her rifles that she put grew and being she’s a lefty, I didn’t want to buy multiple rifles for different things. So I went with this set up. I also got all the bolt-heads from 223 - short mag.
Originally I was planning on a 6CM Proof CF Barrel for hunting but she got an elk tag this year so I decided to go with the 6.5CM instead. I also have the Mag Bolt Head so when she gets a little bigger she can run a 6.5PRC for larger game.
Figured Make the rifle as light as I could with the Carbon Stock and Barrel so she could hunt with it, and if she needs to add weight for comp / range shooting she can run a heavy contour SS Barrel to add the weight.
This will be the last rifle I build her but should fill all her needs for hunting etc and it’s not something she will out grow. I’m happy with how it fits her and so is she. I define ty recommend this build dude! You won’t be disappointed
Altus Shooting Solutions does Proof Carbon Prefits. Great people I’ve there! I’ve got all mine from this far and cannot speak highly enough of them.
Awesome builds gents. My next purchase will be an origin for a 223 trainer. Already have tl3 and SR3 builds. I’m trying to decide if I should try a pva barreled action or an origin with a criterion prefit...... hmmmm decisions
go read the hancock thread and black friday barrel thread. then make an informed decision.
PVA has a little bit of an issue with lead times, they make great stuff but can’t keep up with demand and get swamped to the point that it’s months instead of weeks
I really like this build. I am working on something currently that is very similar for my 10 year old son. He has a bunch of bench rifles I build him, but had to use an old H&R break action 223 last year to take his first deer. Went with a 16.5" carbon six barrel in 6.5 Creedmoor, 1/8 twist as well, so basically same as yours but different brand. We'll have to get the kids together and have a shootout to see who makes the better barrel.
I'm trying out a grayboe ridgeback for this build, but really debated hard on getting the same stock you did. Cheaped out on scope and got the dvor $600 XTR II in the funky "sand camo" pattern. Was able to get the same film for hydro-dipping, will be my first time trying to dip, so might not work out that well, but at least it will just be a woods gun...
Origin
7 SAUM
Mpa chassis 26” xcaliber barrel
SAS can
Minox zp5
7 SAUM
Mpa chassis 26” xcaliber barrel
SAS can
Minox zp5
My Bighorn Origin build is still waiting for all the parts to arrive.
6.5PRC
Origin LA Mag
Bartlein 8T Varmint - 26" w/SPR BugNut treatment
McMillan Game Hunter
TriggerTech
Yes - LA Mag. No sense being hamstrung on magazine length. Learned my lesson on the first 6-5284 I built on a 700 SA. Did some testing with the 6.5PRC in a LA mag just to see how it would feed. Let's just say it fed like chit thru a goose - no hiccups what-so-ever.
6.5PRC
Origin LA Mag
Bartlein 8T Varmint - 26" w/SPR BugNut treatment
McMillan Game Hunter
TriggerTech
Yes - LA Mag. No sense being hamstrung on magazine length. Learned my lesson on the first 6-5284 I built on a 700 SA. Did some testing with the 6.5PRC in a LA mag just to see how it would feed. Let's just say it fed like chit thru a goose - no hiccups what-so-ever.
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I had WAR Rifles build a 6.5 PRC off an Origin.
Before everything fell to shit for me I had all of the bits wrapped for this one so I stuck it together.
A&O in Mound City, MO spun up the Green Mountain blank, .243 Winchester with a 1:7.5 twist. Set at 16.5” in an HS Precision inlet for bottom metal. Trigger is a TT Primary. Just going to be a super simple field rifle.
A&O in Mound City, MO spun up the Green Mountain blank, .243 Winchester with a 1:7.5 twist. Set at 16.5” in an HS Precision inlet for bottom metal. Trigger is a TT Primary. Just going to be a super simple field rifle.
Origin LA Built by LRI
Manners T
Proof SS 20” 6.5x55
Proof CF 24” 28 Nosler
ARC m10 Rings
NF NX8 4-32
TT Diamond
Atlas Cal Bipod
Surefire Socom 300 SPS
Manners T
Proof SS 20” 6.5x55
Proof CF 24” 28 Nosler
ARC m10 Rings
NF NX8 4-32
TT Diamond
Atlas Cal Bipod
Surefire Socom 300 SPS
Waiting for a couple of reloading things but when i shoot it and get the load developed I’ll post the groups
Here’s my two setups: comp vs hunting.
Installed the Area419 knob several weeks ago and love it.
Installed the Area419 knob several weeks ago and love it.
Wanted to post up on one of my two origins. This one is setup for hunting.
PVA Rock Creek #2 26 inch PRC
Geiselle trigger
Manners EH6
Wyatt's extended mag
Hawkins BDL floorplate
Seekins 30mm low rings
Leupold VX-5HD 3-15x44
Gun weighs 8 pounds scoped without bipod. Checked zero today at 200 yards. Running 140 accubonds over H1000, 3035 fps. As for how it shoots, see my zero check below. At most 5 seconds between the shots and a light contour. Couldn't be happier.
PVA Rock Creek #2 26 inch PRC
Geiselle trigger
Manners EH6
Wyatt's extended mag
Hawkins BDL floorplate
Seekins 30mm low rings
Leupold VX-5HD 3-15x44
Gun weighs 8 pounds scoped without bipod. Checked zero today at 200 yards. Running 140 accubonds over H1000, 3035 fps. As for how it shoots, see my zero check below. At most 5 seconds between the shots and a light contour. Couldn't be happier.
Attachments
Well here's my build!
SA origin
KRG bravo
Trigger Tech special
Keystone Accuracy 26" 224 valkyrie medium palma
And my old crappy bushnell (next on the chopping block)
And here is the obligitory "custom on the wood pile" photo.
SA origin
KRG bravo
Trigger Tech special
Keystone Accuracy 26" 224 valkyrie medium palma
And my old crappy bushnell (next on the chopping block)
And here is the obligitory "custom on the wood pile" photo.
Hey guys I’m getting ready to pull the trigger on a origin for my wife’s build. It will be a 6br and I plan on running the 6br mdt mags. Anyone run this setup or see any potential feeding issues. It will be in an XLR carbon chassis.
I know a few people running BR variants in bighorn actions and they all run like champs
MHSA did it since they're local. They did an ok job, but I had to go in with a file and clean up the back end as the rounds were catching on where they had cut instead of the feed rails. They had cut for the box but didn't punch all the way through to the raceway, if that makes sense. Wasn't a big deal, but it is one of the things Wyatt goes over in his how to video for the extended boxes. Otherwise it was easy, didn't even have to touch the bolt stop.
I don't have anyone local so I may see what LRI has to say. I'm sure they would do it right....and relatively quickly. I'm ready to get this build done.
It's honestly a pretty straight forward job. Any machine shop or gunsmith with a mill should be able to do it. J wouldn't expect to pay more than $80.
Question for the origin owners. I currently have a Curtis axiom that I absolutely love. I started with an RPR, so running the axiom feels like a sewing machine. I am wanting to start a 223 build and am leaning to the origin cuz I wanna try a different custom action , and of course the price point is attractive.
Do you guys think the origin will feel inferior or like a "budget" action in any way to the axiom?
I know they obviously are two different animals (3 lug vs 2, crf vs ptf etc) but I don't wanna make this purchase then end up regretting it thinking it's not as nice as the Curtis.
Any input appreciated
The 223 I'm planning will be strictly a range gun for target shooting. Krg bravo chassis.
20" 1/7 barrel. 223wylde if any of that matters.
Do you guys think the origin will feel inferior or like a "budget" action in any way to the axiom?
I know they obviously are two different animals (3 lug vs 2, crf vs ptf etc) but I don't wanna make this purchase then end up regretting it thinking it's not as nice as the Curtis.
Any input appreciated
The 223 I'm planning will be strictly a range gun for target shooting. Krg bravo chassis.
20" 1/7 barrel. 223wylde if any of that matters.
nope. it'll feel different for the reasons you mentioned. but not inferior.
I have an origin along with a tl3 and the origin feels just as solidly built as the tl3. It’s hard to beat the feel of a DLC bolt head on a nitrided body riding in a nitrided receiver, now throw on an area 419 bolt hand extension/bolt knob and it’s a dream.
Love your set up.
Planning my Origin build now in 223AI. Trying to decide what knob to get with it and noticed you're one of the few people I've seen run the spiral. It's between that or the helical diamond. Any regrets getting the smaller spiral?
None at all, I had a minicyclone from pro precision rifles on my rem 700 223 and loved it so when I saw it was an option for the origin I jumped on it.
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