Description
Left-handed hunters usually get the leftovers, but not here. The Weatherby Mark V BC Guide Ti in .243 Winchester is a genuine left-hand action built around a titanium Mark V receiver, machined in Sheridan, Wyoming. Titanium brings a strength-to-weight ratio steel can't touch and shrugs off corrosion, which matters when you're glassing ridgelines in the rain three days from the truck. The whole package starts around 5.1 pounds bare, and you feel every ounce of that savings on a long climb.
Why the BC Guide Ti Carries So Easy and Shoots So Well
The 22 inch BSF carbon fiber barrel is the other half of the story. It's a match-grade 416R stainless barrel wrapped in a tensioned carbon sleeve with an air gap that helps it cool faster and dampen vibration, so it stays consistent when you send a follow-up shot. The 1:7.5 twist is a big deal in .243 Win, letting you stabilize heavy-for-caliber bullets that older 1:10 barrels just won't handle. The muzzle comes threaded 5/8×24 with Weatherby's Accubrake ST installed, and it swaps off easily if you'd rather run a suppressor. The shorter Guide-length barrel keeps the overall package manageable with a can attached.
Peak 44 Blacktooth Stock on the Mark V Guide Ti
The Peak 44 Blacktooth carbon fiber stock weighs a scant 19 ounces and wears exposed carbon with black sponge pattern accents. It's finished with the 3DHEX recoil pad, though in a .243 recoil is barely a conversation, and the forend has two Spartan Precision gunsmithing adapters built in, so a Spartan bipod or tripod clicks on magnetically without adding hardware weight.
Fit and Feed on This Left-Hand .243
The Mark V action gives you a fast 54 degree bolt lift with plenty of scope clearance, the receiver comes drilled and tapped for optics, and capacity is 4+1. Backed by Weatherby's sub-MOA accuracy guarantee, this is the .243 a lefty mountain hunter has been waiting on for deer, antelope, and long walks where ounces add up.
Key Specifications
- Manufacturer: Weatherby
- Manufacturer Part Number: MGT01N243NL4B
- UPC: 747115457557
- Caliber: .243 Winchester
- Action: Bolt Action, Left-Hand, Titanium Mark V Receiver
- Barrel: 22 in BSF Carbon Fiber (416R stainless core)
- Twist Rate: 1:7.5
- Muzzle Thread: 5/8×24 with Accubrake ST
- Capacity: 4 + 1
- Stock: Peak 44 Blacktooth carbon fiber with 3DHEX recoil pad
- Metalwork Finish: Graphite Black Cerakote
- Sights: None, receiver drilled and tapped for optics
- Weight: Approx. 5.1 lbs unloaded
- ATF Type: Rifle
What’s Included
- Weatherby Mark V BC Guide Ti rifle
- Accubrake ST muzzle brake (factory installed)
- Owner's manual and Weatherby documentation
Frequently Asked Questions
Is the Mark V BC Guide Ti a true left-hand action or just a left-side stock?
It's a full left-hand action. The bolt handle, ejection port, and safety are all set up for left-handed operation, so you can cycle the bolt without breaking your cheek weld. Weatherby offers the Guide Ti in .243 Win as one of a handful of true lefty chamberings.
Can I run a suppressor on the Weatherby BC Guide Ti .243?
Yes. The muzzle is threaded 5/8×24, and the Accubrake ST spins off so you can mount a can directly. The 22 inch Guide-length barrel was chosen partly for this reason, since it keeps overall length reasonable with a suppressor attached.
What does the 1:7.5 twist rate mean for ammo selection in this .243?
It opens the door to heavy, high-BC bullets in the 100 grain and up range that traditional 1:10 twist .243 barrels struggle to stabilize. That makes this rifle more capable at longer distances and more versatile across bullet weights. Standard lighter .243 loads shoot fine through it as well.
Does the Guide Ti come with any accuracy guarantee?
Weatherby backs its Mark V rifles with a sub-MOA guarantee, meaning a three-shot group under an inch at 100 yards using Weatherby factory or premium ammunition. Between the tensioned BSF carbon barrel and the titanium action, this rifle has the hardware to deliver on that promise.





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