Speer Hot-Cor Rifle Bullets 9.3mm .366" 270 gr SEMSPT-SP 50/ct
If you're loading ammunition for a 9.3mm rifle and want bullets built to exacting standards, Speer Hot-Cor rifle bullets are a proven choice for hunters and precision reloaders. These 270-grain .366" projectiles are manufactured using Speer's proprietary Hot-Cor process, where molten lead is injected directly into the copper jacket during production. That manufacturing method yields superior consistency from bullet to bullet—exactly what you need when you're assembling ammunition intended for hunting or target work where accuracy matters.
The Hot-Cor construction creates a stronger, more uniform core-to-jacket bond than conventional swaging methods. That translates to predictable bullet performance downrange and tighter shot groups on the bench or in the field. Because the lead is poured molten into the jacket, Speer can achieve tolerances and concentricity that result in the kind of repeatability serious reloaders depend on.
Each box contains 50 bullets, giving you enough to develop and test loads, or to assemble a full hunting season's worth of ammunition. The SEMSPT-SP designation indicates these are soft-point bullets—a proven profile for hunting applications where controlled expansion is desired. Whether you're working up loads for a 9.3x62 or another 9.3mm chambering, these bullets are a solid foundation for accurate, reliable handloads.
Key Features
- Hot-Cor manufacturing process for consistent core-jacket integrity
- 270-grain weight in .366" diameter for 9.3mm rifles
- Soft-point design for controlled expansion on game
- 50 bullets per box
- Engineered for reloading accuracy and repeatability
Specifications
| Caliber | 9.3mm |
| Bullet Diameter | .366" |
| Weight | 270 grains |
| Type | Soft Point (SEMSPT-SP) |
| Construction | Hot-Cor (molten lead core) |
| Count | 50 per box |
Frequently Asked Questions
What rifles use 9.3mm .366" bullets?
The 9.3mm caliber family includes cartridges like the 9.3x62 and 9.3x65, popular in European and African hunting contexts. Always verify your specific rifle's chamber and consult reloading manuals for compatibility before assembling ammunition.
Why does the Hot-Cor process matter for reloading?
Molten-lead-core construction produces bullets with more uniform density and tighter concentricity than conventional methods. That consistency means your finished ammunition will shoot more predictably, with less shot-to-shot variation in velocity and impact.
Are these bullets suitable for hunting?
Yes. The soft-point design is intended for hunting applications where controlled expansion on game is desired. Always follow your reloading manual's load data and your rifle manufacturer's guidance.
What's included in the box?
You receive 50 bullets per box, ready for your reloading press and dies.

