Glock Recoil Spring Tests: Velocity Deviation & More. Interesting Results!
- 6 years ago
Stats also in the video: average velocities and ft-lbs of kinetic energy w/ the stock barrel vs. the Lone Wolf 6.6 inch barrel.\r
\r
Does a stiffer recoil spring reduce the standard deviation in bullet velocity? Does it affect average bullet velocity? We test this with the 10mm auto Glock 20SF with the fory barrel, fory spring, a Lone Wolf 6.6 barrel, and a Lone Wolf 20 lb spring and every combination thereof. \r
\r
Buffalo Bore says on its website, If you are firing this 10MM ammo from an auto loader and are experiencing high extreme velocity spreads, it is not the ammo. Full power 10MM ammunition has always generated enough pressure to require a pretty stiff recoil spring in your handgun—this of course depends on many variables like your particular slide weight, etc. When the cartridge fires, it generates enough pressure/recoil to prematurely open your breech face in some guns. When this happens, the opening breech has an effect on the burn rate of the powder. This can result in some fairly high extreme velocity spreads. If you are experiencing extreme velocity spreads (in excess of 50 fps) simply install a stiffer recoil spring.\r
\r
My chronograph results confirmed this, with a large decrease in standard deviation with the stiffer, aftermarket spring with both barrels as compared to the OEM / fory spring. In f, a 43% reduction with the stock barrel and a 42.7% reduction with the Lone Wolf barrel. Almost identical!\r
\r
I was very surprised to see consistently lower velocities with the stiffer spring, though! It was not much of a difference at all, but it was consistent across the board.\r
\r
Ammunition used: Underwood 180 grain TMJ (\r
\r
FB = Fory Barrel\r
FS = Fory Spring\r
LWB = Lone Wolf 6.6 inch Barrel\r
LWS = Lone Wolf 20-lb Spring\r
\r
FB+FS Average Velocity: 1,278.33 feet per second\r
FB+FS Standard Deviation: 25.54 fps\r
FB+LWS Avg: 1,265.33\r
FB+LWS Std Dev: 14.57\r
\r
LWB+FS Avg: 1,370.66\r
LWB+FS Std Dev: 19.30\r
LWB+LWS Avg: 1,367.33\r
LWB+LWS Std Dev: 11.06\r
\r
FB Avg Vel: 1,271.83\r
LWB Avg Vel: 1,369\r
Lone Wolf = 7.64% increase in velocity vs. fory barrel\r
\r
FB Avg Energy: 646 ft-lbs\r
LWB Avg Energy: 749 ft-lbs\r
Lone Wolf = 16% more kinetic energy\r
\r
FB Std Dev: 20.06\r
LWB Std Dev: 15.18\r
Lone Wolf = 24.3% reduction in standard deviation Support the channel, get free stuff, join live streams, gain early access, and more! Support the channel, get free stuff, join live streams, gain early access, and more!
\r
Does a stiffer recoil spring reduce the standard deviation in bullet velocity? Does it affect average bullet velocity? We test this with the 10mm auto Glock 20SF with the fory barrel, fory spring, a Lone Wolf 6.6 barrel, and a Lone Wolf 20 lb spring and every combination thereof. \r
\r
Buffalo Bore says on its website, If you are firing this 10MM ammo from an auto loader and are experiencing high extreme velocity spreads, it is not the ammo. Full power 10MM ammunition has always generated enough pressure to require a pretty stiff recoil spring in your handgun—this of course depends on many variables like your particular slide weight, etc. When the cartridge fires, it generates enough pressure/recoil to prematurely open your breech face in some guns. When this happens, the opening breech has an effect on the burn rate of the powder. This can result in some fairly high extreme velocity spreads. If you are experiencing extreme velocity spreads (in excess of 50 fps) simply install a stiffer recoil spring.\r
\r
My chronograph results confirmed this, with a large decrease in standard deviation with the stiffer, aftermarket spring with both barrels as compared to the OEM / fory spring. In f, a 43% reduction with the stock barrel and a 42.7% reduction with the Lone Wolf barrel. Almost identical!\r
\r
I was very surprised to see consistently lower velocities with the stiffer spring, though! It was not much of a difference at all, but it was consistent across the board.\r
\r
Ammunition used: Underwood 180 grain TMJ (\r
\r
FB = Fory Barrel\r
FS = Fory Spring\r
LWB = Lone Wolf 6.6 inch Barrel\r
LWS = Lone Wolf 20-lb Spring\r
\r
FB+FS Average Velocity: 1,278.33 feet per second\r
FB+FS Standard Deviation: 25.54 fps\r
FB+LWS Avg: 1,265.33\r
FB+LWS Std Dev: 14.57\r
\r
LWB+FS Avg: 1,370.66\r
LWB+FS Std Dev: 19.30\r
LWB+LWS Avg: 1,367.33\r
LWB+LWS Std Dev: 11.06\r
\r
FB Avg Vel: 1,271.83\r
LWB Avg Vel: 1,369\r
Lone Wolf = 7.64% increase in velocity vs. fory barrel\r
\r
FB Avg Energy: 646 ft-lbs\r
LWB Avg Energy: 749 ft-lbs\r
Lone Wolf = 16% more kinetic energy\r
\r
FB Std Dev: 20.06\r
LWB Std Dev: 15.18\r
Lone Wolf = 24.3% reduction in standard deviation Support the channel, get free stuff, join live streams, gain early access, and more! Support the channel, get free stuff, join live streams, gain early access, and more!