Weatherby Mark V APEX .338-378 Weatherby Magnum Rifle

About this product

The Weatherby Mark V APEX .338-378 Weatherby Magnum Rifle is a purpose-built, long-range hunting rifle that pairs the nine-lug Mark V stainless steel action with a lightweight carbon-fiber stock and an efficient muzzle brake. This configuration aims to provide manageable performance in one of the most powerful commercially available hunting cartridges. It's engineered for hunters who require extreme terminal energy at extreme distances, primarily for large, dangerous game where ethical, one-shot stops at range are critical.

What is the Weatherby Mark V APEX .338-378 Weatherby Magnum Rifle used for?

This rifle is designed for hunting large, dangerous game at extreme long range, typically over 500 yards. Its .338-378 Weatherby Magnum cartridge generates over 5,800 foot-pounds of muzzle energy, which is necessary for ethical takedowns of elk, moose, and bears at distances where standard magnums drop below effective thresholds. The integrated Accubrake ST manages felt recoil to an estimated 35-40% reduction, allowing for faster follow-ups and less shooter fatigue during extended glassing sessions in mountainous terrain.

How does the Weatherby Mark V APEX compare to a Stevens 334 Rifle?

The Weatherby Mark V APEX is superior for specialized long-range and dangerous game hunting, while the Stevens 334 in .308 Win excels as a versatile, budget-friendly all-purpose rifle. The APEX's chambering, action strength, and recoil mitigation systems are built for power and precision at 800+ yards, whereas the Stevens 334 is optimized for reliability and affordability at typical hunting ranges of 300 yards or less. For a hunter pursuing elk in open country, the APEX's capability and price are justifiable; for deer in timber, the Stevens 334 is the more practical and economical choice.

What does the Weatherby Mark V APEX weigh and what are the dimensions?

The rifle weighs approximately 8.2 lbs with the 26-inch fluted barrel, making it substantially lighter than many rifles in its class. Its overall length is 46.25 inches from butt plate to muzzle thread, with a length of pull of 13.75 inches. The carbon fiber Peak 44 Bastion stock contributes significantly to this weight savings, shaving over 2 lbs compared to a traditional walnut stock, though it remains a substantial package due to the heavy-contour barrel required for the cartridge's pressure.

Who is this Weatherby Mark V APEX NOT for?

This rifle is not for budget-conscious shooters, recoil-sensitive individuals, or hunters who operate in dense woods. The ammunition costs over $8 per round, the rifle costs $2,599, and the substantial concussion from the muzzle brake makes it unpleasant to shoot at indoor ranges or next to other shooters. Its effective use requires advanced long-range shooting skills, including an understanding of wind doping at 1,000 yards, which a novice with a Stevens 334 in .243 Win would not need.

What's in the box with the Weatherby Mark V APEX?

The rifle ships with the Accubrake ST muzzle brake pre-installed, one flush-fit magazine with a 2+1 capacity, and a thread protector. It does not include scope bases, rings, a scope, a case, or any cleaning equipment. You will need to budget an additional $100-$250 for a quality Picatinny rail or direct-mount scope bases, and this cartridge's barrel life of approximately 1,200-1,500 rounds necessitates a thorough cleaning regimen after every shooting session.

Is the Weatherby Mark V APEX worth it at $2,599?

Yes, for the specific hunter requiring its unique combination of power and precision at very long range, it is worth the price. The total package cost for a functional system, including a suitable scope and mounting, will approach or exceed $4,500, which places it in a niche beyond general hunting rifles. If your hunting scenarios do not regularly present shots beyond 400 yards on large, heavy-bodied animals, a standard .300 Win Mag or even a .30-06 will perform at a fraction of the cost and recoil.