06-01-2014, 04:42 AM
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Barrel length vs velocity seems to always be a topic of interest to most hunters. But with the 22LR cartridge, rifle length barrels can actually reduce the velocity potential of this round.
In the VOL. 9, NO. 4 issue of GUNS & AMMO magazine, Bob Milek wrote an article titled: BARREL LENGTH VS VELOCITY, where he took a number of barrels and guns and cut down the barrels in one inch increments, measuring the velocity loss at each step of the process for a number of centerfires as well as the 22LRs. It's a very interesting article. Here are the velocities recorded for the 22LR starting at 14 inches and going down to 4 inches.
14" = 1,105 fps.
13" = 1,106
12" = 1,110
11" = 1,089
10" = 1,114
..9" = 1,077
..8" = 1,063
..7" = 1,057
..6" = 1,024
..5" = ..959
..4" = ..927 fps.
The 11 inch velocity was an anomoly which turns up from time to time in nearly all firearms testing. As can be seen, any barrel length between 6 and 10 inches will produce very acceptable velocities and energies with the 22LR. Different brands of ammo will produce some minor velocity variations, but not enough to make all that much of a difference in performance. The above tests were conducted with Winchester HV Solids.
Barrel length vs velocity seems to always be a topic of interest to most hunters. But with the 22LR cartridge, rifle length barrels can actually reduce the velocity potential of this round.
In the VOL. 9, NO. 4 issue of GUNS & AMMO magazine, Bob Milek wrote an article titled: BARREL LENGTH VS VELOCITY, where he took a number of barrels and guns and cut down the barrels in one inch increments, measuring the velocity loss at each step of the process for a number of centerfires as well as the 22LRs. It's a very interesting article. Here are the velocities recorded for the 22LR starting at 14 inches and going down to 4 inches.
14" = 1,105 fps.
13" = 1,106
12" = 1,110
11" = 1,089
10" = 1,114
..9" = 1,077
..8" = 1,063
..7" = 1,057
..6" = 1,024
..5" = ..959
..4" = ..927 fps.
The 11 inch velocity was an anomoly which turns up from time to time in nearly all firearms testing. As can be seen, any barrel length between 6 and 10 inches will produce very acceptable velocities and energies with the 22LR. Different brands of ammo will produce some minor velocity variations, but not enough to make all that much of a difference in performance. The above tests were conducted with Winchester HV Solids.