Bullet: 225 gr XPB  (Barnes)

Diameter: 0.451"

 

Powder: No. 7 (Accurate)

Starting Powder: 14.6 gr

Max Powder: 16.2 gr

 

Primer: WIN WLP

 

Case: WIN

Trim Length: 1.275"

 

Cartridge Overall Length: 1.588"

 

Starting Velocity: 1,161

Starting Pressure:  

Max Velocity: 1,290

Max Pressure:  

 

*Roll crimp the case mouth into the cannelure. *The Barnes #45120 225-grain XPB bullet has a slight taper on the base to prevent bulging of the case wall once the bullet is seated. Only a slight amount of case mouth belling is needed prior to seating the bullet in the case. *SAAMI pressure level for the .45 Colt cartridge is 14,000 psi. Barnes’ .45 Colt data is shot to 30,000 psi and is intended for use in firearms chambered for the .454 Casull or for use in T/C Contender & Encore, Freedom Arms, Ruger Blackhawk, and original model Ruger Vaquero firearms chambered in .45 Colt. This data cannot be used with Colt Single Action Army revolvers
Barrel: 7.3" with 1:16" twist.

 

Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/45Colt.pdf