++Bighorn TL3 Builds++

Here she is. Left handed with a k and p 1-8 left hand twist pipe IMG_1306.JPGIMG_1342.JPGIMG_1345.JPG
 
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Hi Everyone! I am very new to shooting long distance so I am wondering what height scope rings I need?

I have a Bighorn Arms TL3 with a 20MOA rail. I just purchased a Nikon FX1000 6-24 Illuminated MRAD scope that I'm waiting to be delivered. My receiver is currently with my gunsmith who is altering my HS Precision alluminum bedded stock to fit the thicker recoil lug of the TL3 (the stock was originally meant for the Remington TLR) and will also have a Savage 10 FCP-SR 20 inch barrel on it.

I'd like to have the rings as low as possible with that size scope.

Thanks in advance!
 
Hi Everyone! I am very new to shooting long distance so I am wondering what height scope rings I need?

I have a Bighorn Arms TL3 with a 20MOA rail. I just purchased a Nikon FX1000 6-24 Illuminated MRAD scope that I'm waiting to be delivered. My receiver is currently with my gunsmith who is altering my HS Precision alluminum bedded stock to fit the thicker recoil lug of the TL3 (the stock was originally meant for the Remington TLR) and will also have a Savage 10 FCP-SR 20 inch barrel on it.

I'd like to have the rings as low as possible with that size scope.

Thanks in advance!


https://www.snipershide.com/shooting/threads/ring-height-info-how-to-measure-correctly.20706/
 
I have only read this thread 3 times. Finally put a deposit down for a Minute Man. Josh and Jeremy quoted late May, and I am already itching to get my hands on it. It'll be replacing a Tikka T3 in MPA Chassis that if I cant sell ill keep as a backup or hunting rifle.

Build List:
- Bighorn Arms TL3, Short Action, Right Hand, Right Ejection, DLC, 20moa rail, medium tang, AW Cut, helical diamond, standard and 223 bolt face
- American Rifle Company BarLoc shouldered version, barrels tapered for BarLoc
- Rock Creek 24” 1:8” 6.5 Creedmoor Marksman Contour, 5-8/24 Thread, Prime 130gr projectiles
- Rock Creek 24” 1:8” 223 Marksman Contour, 1/2-28 Thread, Prime 55gr and 77gr projectiles
- Timney Calvin Elite curved single stage (1lb pull weight)
- Masterpiece Arms BA Competition Edition, Rem 700 Short Action, RAT rail, Tungsten

It'll be topped off with an AMG and Spuhr mount. Plan on running the Area 419 Hellfire with ARC mags.
 
How do you like the Proof + Barloc? I'm considering a similar setup when I get my TL3 in.

Hoping to get out next week to shoot it, work schedule has me tied up.

This is my 5th Proof carbon barrel, I've been nothing but impressed with their performance. They shoot every bit as good as my Bartlein's and they don't walk. I can shoot 20 shot's in a row and not get any fliers and then hold the barrel with bare hands.

I'll do a review of the Barloc after I get some rounds down range and do some barrel swaps. Barrel installation was a breeze. I have a 22 Creedmoor barrel for this one too that I'll be installing shortly to burn down some praire dogs and rock chucks with.
 
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Bit of a loaded question but...

Is anyone running ARC rings on their TL3 with a 50mm objective scope and a M24 (or similar) barrel profile? I have a DMR2 mounted in Seekins low (0.90") rings over a Rem Varmint profile barrel, and I will be moving it to a TL3 build in the near future with a M24 barrel. I am thinking that when I put this scope over the heavier barrel, I am going to be very close to interfering with my scope caps. I am thinking ARC lows (0.94") but I am not sure.

Unless I can find a direct example to lead the way, I will probably just wait till I have the new rig in hand before selecting new rings, if needed at all. Any help is appreciated!
 
I run TL3 with ARC 0.94 Low rings and a S+B scope with a 56mm objective. The scope will clear the barrel even with a Heavy Varmint contour, though I can't fit scope caps on the Heavy Varmint setup. I can run scope caps with a Heavy Palma, but haven't measured how much extra clearance I have.

With a 50mm objective you should be able to run the low rings just fine.
 
I run TL3 with ARC 0.94 Low rings and a S+B scope with a 56mm objective. The scope will clear the barrel even with a Heavy Varmint contour, though I can't fit scope caps on the Heavy Varmint setup. I can run scope caps with a Heavy Palma, but haven't measured how much extra clearance I have.

With a 50mm objective you should be able to run the low rings just fine.

Thanks you sir. I guess the question now is whether my Seekins low rings will be too close for comfort or if I will need to jump up the extra .04" that the ARC's provide. Secretly hoping for an excuse to pick up a set of the ARC rings... oh my how I long to mount a scope with 4 screws total vs the 12 on the Seekins!
 
Man, I wish I knew about the DLC coating when I ordered my second TL3. It wasn't mentioned . I guess I'll have to just have it coated. I like the way it looks. It would go perfect with the Proof carbon barrel I have sitting next to it.

Thank for sharing


Call Bighorn, they will send your action to DLC for no cost, I believe.
 
Man, I wish I knew about the DLC coating when I ordered my second TL3. It wasn't mentioned . I guess I'll have to just have it coated. I like the way it looks. It would go perfect with the Proof carbon barrel I have sitting next to it.

Thank for sharing


I'm having a Proof 7mm barrel spun up right now for it, dropped it off at the smith this morning. Going to be a 28 Nosler for a hunting rifle. Now I just need Manners to move my order in front of everyone elses! haha


Call Bighorn, they will send your action to DLC for no cost, I believe.

I believe they charge to have an action DLC'd, but its like $75 or something. It's not bad. But free if you order that way from the start.
 
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Question for TL3 owners: The instructions say to remove the extractor during headspacing because it won't cam over a hardened headspace gauge... how do I remove the extractor? Is this 100% necessary or could you kind of slip the gauge into the bolt head and use the CRF to push it into the chamber to headspace it?

And here's a few pics...

vuPfgMW.jpg


qLeVTrP.jpg
 
Here is a 4 shot group and a 9 shot group with my TL3. Rock creek barrel done by josh at PVA with out ever laying hands on the action. The larger 9 shot group was 3 different loads.
 

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Question for TL3 owners: The instructions say to remove the extractor during headspacing because it won't cam over a hardened headspace gauge... how do I remove the extractor? Is this 100% necessary or could you kind of slip the gauge into the bolt head and use the CRF to push it into the chamber to headspace it?

And here's a few pics...

vuPfgMW.jpg


qLeVTrP.jpg


You can leave it in if you don't try to push the bolt in past the extractor with the gauge suspended in the bolt. Otherwise use a dental pick and push the detent down and you slide it outward. Be advised, the detent and spring will fly away like any other detent on an AR, so point it in a safe direction. :)
 
For those of yall that are running switch barrel setups what is the change in zero between 6mm/6.5mm projectiles and 223?

Good news, I talked with PVA and I should have mine in hand by May 16th.
 
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For those of yall that are running switch barrel setups what is the change in zero between 6mm/6.5mm projectiles and 223?

Totally depends on the barrel and how the chamber matches up. I've got some barrels within a few tenths of each other, and some barrels that are 2.5 mils off each other despite being same caliber.

My approach to keeping track of all this is to draw a little crosshairs on a piece of paper, then put a dot where the bullet will hit and mark the offset. Helps me visualize better and is easier to keep track of multiple barrels that way.
 
Totally depends on the barrel and how the chamber matches up. I've got some barrels within a few tenths of each other, and some barrels that are 2.5 mils off each other despite being same caliber.

My approach to keeping track of all this is to draw a little crosshairs on a piece of paper, then put a dot where the bullet will hit and mark the offset. Helps me visualize better and is easier to keep track of multiple barrels that way.

Thanks for the info and this was my fear, that it’s kinda all over the place. You are running PMIIs right? So when you switch the barrel I assume you have to reset the screws because you need more than 0.3-0.5 mils below zero?
 
Yeah, I reset the zero every time I change barrels. Not a big deal. If the zero is underneath the current one, I'll just start at zero, unscrew the screws, spin the turret to the offset number, set the screws again, then dial back down to zero.
 
Hey guys I just put together a TL3 this weekend and I am having some feeding issues. It is a SA TL3 with a 223 bolt head, sitting in a Manners mini-chassis. Everything bolted up nicely, but I can't get it to feed at all. I have a MDT polymer mag that I had feeding well in another 223 rifle, and an accurate mag and neither of them worked.

Another thing that I thought was notable, was that I couldn't even get it to feed by placing a round right on top of the magazine through the ejection port. The same type of jam shown below in the picture occurred whether I tried to feed by the mag or just single loading. It almost seems as if the extractor isn't allowing the case rim to slide up into the bolt face easily. It seems free to move with my finger but I am not sure how much resistance there should be. When I pull the bolt out and slide a case under the extractor, it really "clicks" into place and I'm wondering if maybe the extractor is a little tight causing a jam or something?

I contacted Manners and Bighorn and am waiting on some support but I know those guys had a show this weekend and are busy so I am hoping that there might be some advice you guys could offer me.

The first pic is with the bolt removed and showing the height of the cartridge when sitting in the mag. It may be a little low, but you can see the primer so I'm not sure if its low enough to be causing this kind of jam. When I push the magazine up by hand and try to feed, the bolt hits on the top of the feed lips, so it kind of seems like the mag is at the proper height. Second pic is just showing the jam, you can see that the cartridge is angled up, but not being accepted into the bolt face.

LfWhAvm.jpg

egbOsTQ.jpg
 
Is the jam from the nose of the bullet missing the entrance to the chamber and hitting the flat rear face of the barrel?

FWIW, my MDT 223 mag sits a little higher in the action and shows a tiny bit more primer. Not much difference than what you show in your picture though.
 
Is the jam from the nose of the bullet missing the entrance to the chamber and hitting the flat rear face of the barrel?

FWIW, my MDT 223 mag sits a little higher in the action and shows a tiny bit more primer. Not much difference than what you show in your picture though.

I will have to take a closer look tonight, but yes, I think the nose of the bullet is missing the entrance to the chamber and jamming against the breech face of the barrel. I did slightly modify this MDT mag to work in another 223 bolt gun, and what I did was remove a little bit of the front of the feed lips to allow the cartridge to "angle up" a little more as it is pushed from the mag so this could be contributing to the issue?

I guess I would have to order another MDT mag to see if an unmodified one will still have the same issue. Still seems strange that I am unable to just single load them on top of the magazine tho.
 
Something you might want to consider is an AICS 223 Bobsled, brownells is the only dealer that carries them. I’ve found it very convenient for single loading in my tikka, which was very problematic when single feeding from the magazine. While it won’t help your magazine problem it’s nice to have.
 
Try looking for the thread or post having to do with 223 AICS mags. It may be this one . Some people had to make a slight mod to the magazine to get the non Accuracy Iinternational mags to feed correctly. I had some feeding issues when my son would run the bolt slowly but when I would run Accuracy International magazines no issues at all. My setup is different, I'm running an AICS stock.
I'm sure it's minor.