The Weatherby Mark V Accumark is a bolt-action rifle chambered in .270 WBY Mag. The 28-inch barrel and the .270 Weatherby Magnum cartridge together push the effective range out further than standard .270 Win loads, which is the point of the platform. 
 

Key Specifications 

• Manufacturer: Weatherby 
• Model: Mark V Accumark 
• Caliber: .270 WBY Mag 
• Action Type: Bolt Action 
• Barrel Length: 28 inches 
• Capacity: 3 + 1 rounds 
• Weight (Unloaded): 8.3 lbs. 
• Overall Length: 48.25 inches 
• Finish: Black Cerakote 
• Twist Rate: 1 in 10 
   

Barrel 

The 28-inch barrel has a #3 contour, balancing weight against rigidity for a rifle in this power class. The extra length over shorter-barreled alternatives maximizes muzzle velocity from the .270 WBY Mag case. 
 

Trigger 

The TriggerTech trigger has a clean break with minimal creep. It is a meaningful upgrade over the older Weatherby triggers and is one of the more noticeable improvements in the current generation. 
 

Muzzle Brake 

The Accubrake ST reduces felt recoil, which matters with the .270 WBY Mag pushing heavier loads at higher velocities. Follow-up shots are more manageable with the brake installed. 
 

Usage 

This is a long-range hunting rifle first. The combination of the .270 WBY Mag cartridge, 28-inch barrel, and 8.3 lb weight is optimized for reaching out at big game rather than for light carry. At the range it works well for precision shooting where the extra weight is not a factor.

The Weatherby Mark V Accumark in .270 WBY Mag gets broadly positive reviews from hunters and precision shooters, though a few consistent complaints come up alongside the praise.

Accuracy is the strongest point. Users report tight groups at extended distances, which is expected given the flat trajectory of the .270 Weatherby Magnum and the 28-inch barrel. The cartridge itself is frequently mentioned as a reason for buying the rifle, and the Accumark's ability to deliver what the cartridge is capable of is a recurring theme.

Build quality is generally well-regarded. The stock, barrel, and action finish meet the expectations of buyers at this price point, and the bolt cycles cleanly.

Weight and balance divide opinion. Some shooters like the solid feel and find the 8.3 lb weight steadies the rifle for field shots. Others find it heavy for extended carry, particularly on longer hunts where every pound counts by the end of the day.

Recoil management is reported as better than expected. The Accubrake ST does its job, and most users note that the felt recoil is reasonable for the cartridge.

Price is the most common concern. The Mark V Accumark costs more than many competing bolt-action rifles, and the debate over whether the performance justifies the price shows up in most discussions. Buyers who prioritize the .270 WBY Mag specifically tend to feel it's worth it; those comparing it against standard .270 Win rifles tend to be more skeptical.

Weatherby's customer service experiences vary. Positive interactions get mentioned, as do frustrating ones, so it is a known variable with the brand.