Weatherby 300 Weatherby Magnum 170gr Hammer Custom ammunition comes in a 20-round box (Weatherby part no. M300170HCB) loaded for hunters shooting rifles chambered in 300 Weatherby Magnum. Weatherby lists this 170-grain load at 3300 fps and 4111 ft-lbs of muzzle energy, with a G1 ballistic coefficient of .480. Weatherby describes the Hammer Custom bullet as a solid copper design turned on a CNC lathe, with a hollow point that sheds petals on impact while the rest of the bullet stays intact. Weatherby also lists this load as lead free. It is a straightforward choice when you want factory ammunition built around the Hammer Custom rather than a handload.

Key Specifications

• Chambering is 300 Weatherby Magnum, the designation Weatherby lists for this load and the cartridge your rifle needs to be chambered for.
• Bullet weight is 170 grains, the weight Weatherby lists for this Hammer Custom load.
• The bullet is the Hammer Custom, the projectile Weatherby chose for this 300 Weatherby Magnum load.
• Each box holds 20 rounds, the full count that comes with this listing.
• Muzzle velocity is listed at 3300 fps, the starting point of Weatherby’s velocity table out to 500 yards.
• Muzzle energy is listed at 4111 ft-lbs, the figure Weatherby gives before the bullet starts shedding energy downrange.
• The G1 ballistic coefficient is .480, a measure of how well the bullet holds its velocity against drag.

Frequently Asked Questions

What cartridge is this ammunition loaded in? It is loaded in 300 Weatherby Magnum, so it is intended for rifles chambered in 300 Weatherby Magnum.

What bullet does this 300 Weatherby Magnum load use? It uses a 170-grain Hammer Custom bullet. Weatherby describes it as a solid copper bullet turned on a CNC lathe, with a hollow point that sheds petals on impact while the remainder of the bullet stays intact. Each bullet is weighed and micrometer measured during production.

What muzzle velocity does Weatherby list for the 170-grain Hammer Custom? Weatherby lists 3300 fps at the muzzle and 4111 ft-lbs of muzzle energy for this load, with a G1 ballistic coefficient of .480.

Buy the Weatherby 300 Weatherby Magnum 170gr Hammer Custom Rifle Ammunition, 20-Round Box

Order your 300 Weatherby Magnum ammunition from Weatherby through our Lubbock, Texas gun shop for fast shipping direct to your door, and browse more ammunition while you are here.