Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, lifelong hunter.
For whitetail hunters running bolt-actions or semi-autos, the Hornady American Whitetail 308 Winchester 150-grain Interlock JSP delivers consistent terminal performance at conventional velocities. Launched at 2820 fps from a 24-inch test barrel, this 150-grain Jacketed Soft Point generates 2649 ft-lbs of muzzle energy and a flat trajectory out to 300 yards. Hornady designed the American Whitetail line specifically for deer hunters who demand controlled expansion and deep penetration without paying premium bullet prices.
Performance at a Glance
The Interlock bullet uses Hornady’s ring-locked core design — a raised ring inside the jacket mechanically locks the hard-alloyed lead core to the copper jacket during impact and expansion. This prevents core-jacket separation, retaining more mass and momentum as the bullet penetrates shoulder bone and vitals. At 308 Winchester velocities, the 150-grain Interlock opens reliably at ranges from 50 to 300+ yards, making it versatile for stand hunting and open-country shots. Brass cases with Boxer primers allow you to reload this brass after your hunt. The 0.338 G1 ballistic coefficient and 0.226 sectional density balance expansion with penetration on medium game.
Technical Breakdown
| Spec | Value |
|---|---|
| Caliber | 308 Winchester |
| Bullet Weight | 150 Grains |
| Bullet Type | Hornady Interlock Jacketed Soft Point |
| Muzzle Velocity | 2820 fps |
| Muzzle Energy | 2649 ft-lbs |
| Test Barrel Length | 24 Inches |
| G1 Ballistic Coefficient | 0.338 |
| Sectional Density | 0.226 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Rounds per Box | 20 |
| Intended Use | Hunting |
| Manufacturer | Hornady |
This load pairs well with 1:12 or 1:10 twist barrels common in 308 Winchester hunting rifles. Expect sub-MOA groups from quality bolt-actions when zeroed at 100 or 200 yards. Browse more Hornady 308 ammo to compare bullet weights and profiles for your hunting needs.
Who It’s For
Whitetail hunters running Remington 700s, Winchester Model 70s, Ruger Americans, and AR-10 platforms will find the 150-grain Interlock an excellent match for shots inside 350 yards. The conventional velocity minimizes meat damage on shoulder shots while delivering reliable expansion through hide and bone. If you reload, the quality brass extends the value of each box. For hunters who want proven terminal performance without premium pricing, this load has earned its reputation across multiple deer seasons.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Follow the four rules of firearms safety when loading and firing ammunition.
- Verify current state and local laws governing ammunition purchase, possession, and transport in your jurisdiction.
- This product contains lead, a chemical known to the State of California to cause cancer and reproductive harm — handle with care and wash hands after use.
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