Hornady 30 Cal .308 125gr SST Component Bullets
The Hornady SST (Super Shock Tip) is a polymer-tipped expanding bullet designed for hand-loaders who want reliable, rapid expansion at hunting velocities. Built around Hornady’s secant ogive and boattail profile, the 125 grain .308-inch projectile offers a flat trajectory and high ballistic efficiency with reduced drag.
On impact, the hard polymer tip is driven into the lead core like a wedge, initiating fast yet controlled expansion and creating a large wound channel. The InterLock ring — a Hornady-exclusive raised band inside the jacket — mechanically bonds core and jacket together during expansion, maintaining bullet integrity and maximising weight retention for deeper penetration.
A mid-body cannelure provides a consistent crimp point during the loading process and further helps keep the bullet aligned in the cartridge.
| Specification | Value |
|---|---|
| Caliber | .308 inch |
| Weight | 125 grains |
| Bullet Type | SST (Super Shock Tip) |
| Core Type | Lead |
| Jacket Feature | InterLock ring |
| Tip Material | Hard polymer |
| Design | Secant ogive, boattail |
| Use Case | Hand-loading, hunting |
FAQ
What makes the Hornady SST bullet different from other expanding bullets?
The Hornady SST features a hard polymer tip that drives into the lead core on impact, creating rapid and controlled expansion. The InterLock ring inside the jacket bonds the core and jacket together, improving weight retention and penetration.
Is this bullet suitable for use in a .308 Winchester rifle?
Yes, the 125gr .308 SST is specifically designed for .308 caliber rifles and is compatible with standard .308 Winchester chambers.
Does this bullet require special loading techniques?
The mid-body cannelure helps maintain consistent crimp during loading, making it suitable for standard hand-loading procedures. No special tools or techniques are required.




Austin Lewis –
I’ve used these bullets in a hand-loaded setup for deer hunting. The expansion is consistent and the bullet performs well at medium ranges. The weight retention is better than other similar bullets I’ve tried.
Julian Gill –
Good performance in the field. The polymer tip expands reliably and the bullet maintains integrity during impact. Works well with my .308 rifle and is easy to load.
Keith Rampling –
The InterLock ring really makes a difference. I noticed better penetration and a larger wound channel compared to standard bullets. Very satisfied with the results in my hunting trips.
Piers Morgan –
Used these in a controlled test with a .308 rifle. The trajectory is flat and the bullet expanded predictably. Good for hand-loaders who want reliable performance.