Barrel Twist
I've noticed all my books say the 9mm likes about a 10:1 twist. Pretty tight compared to other pistol rounds. Has anyone measured the Luger twist rate? Did it change over the years?
I tried with a cleaning rod, a tight patch, and a soft pencil. Not very scientific but seem to be getting a bit less than 10:1. Maybe even 8.5:1???
Anyone else?
FN
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