My Shield 9mm barrel
Very unscientific, but reasonable accurate. Using a cleaning rod marked so I can see the twist and measure length of movement. Pushing firmly packed cleaning patches through the barrel, I measure a little more than .2 turn for 2 inches of movement, which would equal 1 full turn in 10 inches or a little less. My barrel would be 1/10 or 1/9 twist, not that either rate is going to make any difference in accuracy.
Checked twist rate for Storm Lake Barrels on Midway's site, and for all calibers they show a 1/16 twist rate. Went to the Storm Lake's website and can't find anything showing their twist rates.
Bob
Last edited by robkarrob; 02-17-2013 at 06:46 PM.
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