High precision cartridge for sniper application. Loaded with Sierra MatchKing bullets, the .223 REM HPBT 69 gr is designed for use in sniper rifles, as well as conventional weapons.
| Normative reference | ANSI/SAAMI Z-2299.4 – 1992 |
| Projectile type | HPBT |
| Projectile weight | 4.47 g – 69 gr |
| Watertightness | Yes |
| Service temperature | -20°C to +40°C | -4°F to +104° |
| Safety temperature | -54°C to +71°C | -65°F to +160°F |