The .400 Cor-Bon is a high-performance pistol cartridge developed in the late 1990s by Peter Pi, Sr., of Cor-Bon Ammunition. It is essentially a .45 ACP case that has been necked down to accept a .400 inch (10mm) bullet. The necked-down design improves the cartridge's ballistic performance, offering higher velocity and energy compared to the standard .45 ACP.
The .400 Cor-Bon is designed for use primarily in semi-automatic pistols, particularly those originally chambered for .45 ACP, as the cartridge dimensions allow it to fit within the same magazine and frame dimensions. Popular for self-defense and hunting, the .400 Cor-Bon delivers potent stopping power and increased penetration.
Typical bullet weights range from 135 to 165 grains, with velocities reaching up to approximately 1,300 to 1,500 feet per second, depending on the load. Due to its high velocity and relatively flat trajectory, the .400 Cor-Bon is appreciated for its accuracy and effective performance over varying distances.
Noteworthy is the need for proper handloading practices if customizing ammunition, as improper loading can lead to excessive pressures. The .400 Cor-Bon is less commonly found than other mainstream cartridges and may require specific searches to find commercial ammunition.
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Lee Collet Necksizing 2-Die Set |
Lee Full-Length Sizing Die Set |
90430 |
Lee Breech Lock Die Set |
Lee Loader |
Single Dies |
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Full-Length Sizing Die |
Steel Sizing Die |
91218 |
Undersize Sizing Die |
Powder through Expanding Die |
91155 |
Charging Die |
Seating Die |
91195 |
Factory Crimp Die |
90173 (Collet Style) |
Taper Crimp Die |
Inline Bullet Feed Die |
Case Conditioning Tools |
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Case Length Gauge and Shell Holder |
90493 |
Quick Trim Die |
Presses |
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Reloader Press (50 RPH) |
90045 (Lee Reloader Press) |
Hand Press (50 RPH) |
Breech Lock Hand Presses |
Challenger Press (50 RPH) |
90588 (Challenger III) |
Classic Cast Press (50 RPH) |
90998 (Classic Cast Press) |
Value Turret Press (250 RPH) |
90928 (Value 4-hole Turret Press Kit) 90932 (4-hole Turret Press with Auto Index) |
Classic Turret Press (250 RPH) |
90304 (Classic Turret Press Kit) 90064 (Classic Turret Press) |
Ultimate Turret Press (250 RPH) |
91910 (Ultimate Turret Press) |
Pro 1000 Press (500+ RPH) |
PRO 1000 |
Pro 4000 Press (500+ RPH) |
90900 (Auto Breech Lock Pro) |
Six Pack Pro Press (500+ RPH) |
91823 (Six Pack Pro Reloading Press) |
Shell Plates and Holders |
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Priming Tool Shell Holder |
90202 (#2) |
Universal Press Shell Holder |
90519 (R2) |
X-Press Shell Holder (APP) |
91535 (#2) |
Pro 1000 Shell Plate |
90652 (#2) |
Auto Breech | Pro 4000 Shell Plate |
90584 (2) |
Six Pack Pro Shell Plate |
91836 (2L) |
Inline Bullet Feed |
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Inline Bullet Feed Die |
Inline Bullet Feed Kit |
Inline Bullet Feed Magazine |
Bullet Casting |
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Classic Bullet Sizing Kit |
Breech Lock Bullet Sizer and Punch |
Bullet Molds |
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