Vern Humphrey
Member
We've recently discussed the effect of barrel length in .22 Long Rifle. I knew I had slomething in my packrat stack of gun magazines, and I came across an article on the Taurus 62 clone of the old Winchester Model 62 pump. This is from "A Model 62 Winchester for Today's Shooters" in the November 2000 edition of Shooting Times:
Taurus Model 62 .22 LR 16.5 inch barrel
Load muzzle velocity SD 25-yard accuracy
Federal 32 gr Hyper Velocity HP 1431 27 0.75
CCI 36 gr Mini-Mag HP 1179 28 0.68
Remington 38 gr high Velocity HP 1147 20 0.75
Eley 40 gr Tenex solid 1096 8 0.4
Federal 40 gr Gold Medal Match solid 1049 6 0.48
PMC 40 gr ScoreMaster Solid 1093 3 0.5
Winchester 40 gr T22 Solid 1124 24 1
Overall accuracy 0.65
Taurus Model 62 .22 LR 23 inch barrel
Load muzzle velocity SD 25-yard accuracy
Federal 32 gr Hyper Velocity HP 1421 17 0.83
CCI 36 gr Mini-Mag HP 1170 23 0.75
Remington 38 gr high Velocity HP 1134 32 0.5
Eley 40 gr Tenex solid 1080 11 0.44
Federal 40 gr Gold Medal Match solid 1028 14 0.38
PMC 40 gr ScoreMaster Solid 1064 7 0.63
Winchester 40 gr T22 Solid 1091 14 0.88
Overall accuracy 0.63
Note that barrel length had no appreciable effect on accuracy, and that the 23-inch barrel showed a decrease in velocity in six out of seven loads compared to the 16.5 inch barrel
My apologies for the jumbled appearence of this table -- it was perfectly lined up in the draft, but apparently the final version wipes out the spaces and tabs.
Taurus Model 62 .22 LR 16.5 inch barrel
Load muzzle velocity SD 25-yard accuracy
Federal 32 gr Hyper Velocity HP 1431 27 0.75
CCI 36 gr Mini-Mag HP 1179 28 0.68
Remington 38 gr high Velocity HP 1147 20 0.75
Eley 40 gr Tenex solid 1096 8 0.4
Federal 40 gr Gold Medal Match solid 1049 6 0.48
PMC 40 gr ScoreMaster Solid 1093 3 0.5
Winchester 40 gr T22 Solid 1124 24 1
Overall accuracy 0.65
Taurus Model 62 .22 LR 23 inch barrel
Load muzzle velocity SD 25-yard accuracy
Federal 32 gr Hyper Velocity HP 1421 17 0.83
CCI 36 gr Mini-Mag HP 1170 23 0.75
Remington 38 gr high Velocity HP 1134 32 0.5
Eley 40 gr Tenex solid 1080 11 0.44
Federal 40 gr Gold Medal Match solid 1028 14 0.38
PMC 40 gr ScoreMaster Solid 1064 7 0.63
Winchester 40 gr T22 Solid 1091 14 0.88
Overall accuracy 0.63
Note that barrel length had no appreciable effect on accuracy, and that the 23-inch barrel showed a decrease in velocity in six out of seven loads compared to the 16.5 inch barrel
My apologies for the jumbled appearence of this table -- it was perfectly lined up in the draft, but apparently the final version wipes out the spaces and tabs.