Stephen A. Camp
Moderator In Memoriam
- Joined
- Dec 24, 2002
- Messages
- 2,430
Hello. As part of a project I'm doing, I recently borrowed a Colt Defender, a compact variation of John Browning's 1911. Several different commercial loads were chronographed to see just how much velocity these short barrel pistols lost.
The gun's owner replaced the factory grips and installed/fitted Swenson ambis as he's left-handed.
I had a ballpark idea but had never checked any of these over a chronograph as I don't own any 1911 pattern pistol with shorter than a 4 1/4" barrel.
That does not mean that other folks don't and I figured the results might be of some interest to them. Figures are based on 10 shots fired approx. 10' from the chronograph screen.
Remington 185-gr. MC-Flat Nose:
Average Velocity: 923 ft/sec
Federal 185-gr. Classic JHP:
Average Velocity: 885 ft/sec
Corbon 200-gr. JHP +P:
Average Velocity: 958 ft/sec
Sellier & Bellot 230-gr. FMJ:
Average Velocity: 722 ft/sec
Winchester USA 230-gr. FMJ:
Average Velocity: 765 ft/sec
Federal 230-gr. Hydrashok:
Average Velocity: 799 ft/sec
Winchester Ranger 230-gr. JHP:
Average Velocity: 797 ft/sec
Winchester Ranger 230-gr. JHP+P:
Average Velocity: 866 ft/sec
The Federal 185-gr. JHP (left) and the standard pressure Winchester Ranger SXT (RA45T) were fired into water and both expanded nicely. The Federal JHP's jacket separated. This is more common in water than in tissue. The SXT round expanded slightly less than when fired out of a 5" barrel. A police officer who attended a Ballistics Seminar
put on by Winchester advises that they do recommend use of the +P version in pistols having less than 4" barrels to insure more certain expansion should the bullet pass through barriers before striking the target.
Best.
The gun's owner replaced the factory grips and installed/fitted Swenson ambis as he's left-handed.
I had a ballpark idea but had never checked any of these over a chronograph as I don't own any 1911 pattern pistol with shorter than a 4 1/4" barrel.
That does not mean that other folks don't and I figured the results might be of some interest to them. Figures are based on 10 shots fired approx. 10' from the chronograph screen.
Remington 185-gr. MC-Flat Nose:
Average Velocity: 923 ft/sec
Federal 185-gr. Classic JHP:
Average Velocity: 885 ft/sec
Corbon 200-gr. JHP +P:
Average Velocity: 958 ft/sec
Sellier & Bellot 230-gr. FMJ:
Average Velocity: 722 ft/sec
Winchester USA 230-gr. FMJ:
Average Velocity: 765 ft/sec
Federal 230-gr. Hydrashok:
Average Velocity: 799 ft/sec
Winchester Ranger 230-gr. JHP:
Average Velocity: 797 ft/sec
Winchester Ranger 230-gr. JHP+P:
Average Velocity: 866 ft/sec
The Federal 185-gr. JHP (left) and the standard pressure Winchester Ranger SXT (RA45T) were fired into water and both expanded nicely. The Federal JHP's jacket separated. This is more common in water than in tissue. The SXT round expanded slightly less than when fired out of a 5" barrel. A police officer who attended a Ballistics Seminar
put on by Winchester advises that they do recommend use of the +P version in pistols having less than 4" barrels to insure more certain expansion should the bullet pass through barriers before striking the target.
Best.