Hardware: Nosler BT Ammunition

by
posted on February 24, 2016
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
nosler_bt_ammo_f.jpg

Professional hunter Leon DuPlessis with Fort Richmond Safaris was grinning wide. We’d just managed to find two blesbok rams running rogue on his brother-in-law’s sheep and cattle ranch.

“We’ve been after these buggers for several years. We can never get closer than 500 yards,” he said. I guessed them to be at about 320.

Since we were preparing to call jackals we’d left the rangefinder in the truck, so a guess was all we had to go on. Leon whispered, “I want you to take them both.”

When I pulled the trigger it was a clean miss. The blesbok took off, and I rolled from prone to seated. Knowing my range estimation had been off, I conducted a quick mental trajectory calculation. I knew if the bullet dropped too much at my estimated 320 yards, the blesbok were a lot farther than that.

I held about 16 inches above the backbone and applied about 6 feet of lead. A half-second after the trigger broke the lead blesbok rolled into a dust cloud. The second one slowed and then stopped. I applied the same hold, and another 165-grain Nosler Ballistic Tip found its mark.

Since their introduction in 1984, Nosler’s Ballistic Tip bullets have had a stellar reputation for accuracy. Early on they also developed a reputation for being too fragile for big game. There was some truth to that, but some of the fault was with hunters pushing them too fast. Ballistic Tips were designed to work best with impact velocities of about 3000 fps or less. Thing is, when a hunter finds a bullet that’ll shoot itty-bitty groups, he tends to overlook terminal performance.

Nosler fixed the fragility issue years ago. Ballistic Tips are still not intended for extreme-velocity impacts on big game; if that’s what you need, the Nosler Accubond is the way to go. However, in common non-magnum big-game cartridges, the Ballistic Tip is wicked deadly. Two rogue South African blesbok taken at an unspeakable distance with a .308 Win. proved that point.

Ballistic Tips got their name because they are topped off with a pointy polymer tip. In fact, the Ballistic Tip started that trend, and many modern bullets now wear similar tips. They have a sleek ogive and a boattail. This means they also have a high ballistic coefficient to help flatten trajectories, and reduce flight time and wind drift. Tips vary in color depending on caliber: purple for 6mm, yellow for .270, red for 7mm and green for .30.

It used to be if you wanted to buy factory ammunition loaded with Ballistic Tips you had to pay a premium price. At least one major ammunition manufacturer loads them, as do numerous boutique ammo companies. Nosler even offers ammunition loaded with Ballistic Tips in its Trophy Grade and Custom lines of ammunition. But, like with other premium brands, they are relatively expensive.

The folks at Nosler were smart enough to realize Ballistic Tips have become very popular with deer hunters, who are often very frugal. Nosler pulled a selection of Ballistic Tip loads from the Trophy Grade line and piled them into a new brand of ammunition sensibly called BT (Ballistic Tip). Additionally, Nosler optimized the bullet weight and velocity of every cartridge in the BT ammo line to deliver the best performance on deer, antelope and hogs. BT ammo is still assembled with the same premium brass and attention to detail as all other Nosler ammunition; it just costs less.

Because Ballistic Tip bullets do not expand excessively wide, they penetrate a bit deeper than many similarly priced, conventional cup-and-core big-game bullets. They also shed on average about 30 percent to 50 percent of their weight. This weight loss might make you think the design is antiquated or unsuitable for big game. After all, today’s hunters lust for bullets that retain all their weight. The truth is, a bullet that sheds weight during penetration—if the shedding is due to erosion and not fragmentation—damages more tissue.

A Ballistic Tip bullet is made by the extrusion (the repeated pounding) of a solid slug of gilding metal. Then, a lead-alloy core is inserted into the tapered jacket, and a polymer tip is pressed into place. The tip helps protect the bullet while in the magazine and works to initiate rapid and volatile expansion, too. Since the core is relatively soft, it and the tapered jacket remain malleable as the bullet slows. This pliability and potential for continued erosion increases the time-deformation curve. The result is deep wreckage of a critter’s insides with a high amount of energy dump. During the first 8 inches of penetration, a Ballistic Tip will dump about 25 percent more of its energy than most high-weight-retention bullets.

Currently Nosler offers BT loads for a handful of popular hunting cartridges from .243 Win. to .30-06. Expect the company to add more loads, and expect them all to be perfectly tuned to put deer-size game down with authority. They’ll work just fine on blesbok, too, even a long, long ways out there.

Technical Specifications:
• Caliber: .243 Win., .260 Rem., 6.5mm Creedmoor, .270 Win., 7mm-08 Rem., .30-30 Win., .308 Win. (tested), .30-06
Bullet Type: polymer-tipped, boattail Ballistic Tip Hunting
Bullet Weight (in grs.): 125, 165 (.308 Win.)
Ballistic Coefficient: .366 (125 grs.), .475 (165 grs.)
Muzzle Velocity (in fps): 3100 (125 grs.), 2800 (165 grs.)
Muzzle Energy (in ft.-lbs.): 2667 (125 grs.), 2871 (165 grs.)
MSRP: $32.95 per 20-rnd. box

Latest

Ledeinterior Department
Ledeinterior Department

Funding Authorized to Conserve Critical Wetland Habitat

The Department of the Interior has announced that $44.79 million in North American Wetlands Conservation Act (NAWCA) funds have been approved by the Migratory Bird Conservation Commission. They will provide the U.S. Fish and Wildlife Service—and its partners—the ability to conserve, restore or enhance 185,203 acres of critical wetland and associated upland habitat for migratory birds across the United States.

Behind the Bullet: The .30-378 Weatherby Magnum

Curious about one of the original wonder cartridges? A cartridge that literally broke the 6000 fps mark with specialized, lightweight options? Follow along with Phil Massaro as he dives into the .30-378 Weatherby Magnum.

New for 2026: Muddy Cloak OZ3 and OZ5 Ozone Generators

Muddy Outdoors has launched the Cloak OZ3 and OZ5 Ozone Generators—two high-output scent control solutions designed to give hunters a true edge in the field.

Varmint Hunting 101: Tips and Overview

Looking for a way to spend your offseason that scratches your hunting itch? Try varmint hunting. Follow along with Tim Hovey as he discusses how to get into the pursuit, and some basic tips to get you rolling.

MDT Expands ACC Elite Compatibility to Savage 110 Short Action and CZ 457 Platforms

MDT has expanded its ACC Elite chassis system, adding compatibility for the CZ 457 and Savage 110 short action platforms.

Looking for Hogs vs. Hunting Wild Boars

There is no right or wrong way to hunt hogs. But in the author’s opinion there are methods that are more rewarding than others if sporting challenge, and not merely eradication, is the goal.

Interests



Get the best of American Hunter delivered to your inbox.