The Buffalo Bore 3E20 Standard Pressure 45 Colt delivers controlled expansion and deep penetration with its 255-grain gas checked soft cast bullet design. This ammunition provides reliable performance for both hunting and self-defense applications while maintaining manageable recoil in standard firearms.
What Makes This Different
The gas checked soft cast construction combines the penetration advantages of hard cast bullets with controlled expansion characteristics. Unlike standard lead bullets, the gas check prevents leading in the barrel while the soft cast alloy ensures reliable expansion on impact. Standard pressure loading makes this ammunition safe for use in vintage Colt Single Action Army revolvers and modern reproductions without concerns about overpressure.Key Features
- 255-grain gas checked soft cast bullet for deep penetration and expansion
- Standard pressure loading safe for all 45 Colt firearms including vintage models
- Gas check design prevents barrel leading and fouling
- Soft cast alloy construction provides controlled expansion on impact
- Premium brass cases suitable for reloading
- Consistent powder charges for reliable accuracy
- 20 rounds per box, 12 boxes per case (240 total rounds)
Technical Specs
- Caliber: 45 Colt (.452 diameter)
- Bullet Weight: 255 grains
- Bullet Type: Gas checked soft cast
- Pressure: Standard (14,000 PSI)
- Case Material: Reloadable brass
- Primer: Large pistol
- Packaging: 20 rounds per box, 12 boxes per case
- Manufacturer: Buffalo Bore Ammunition

