I have an upper/barrel that has no markings on it what so ever. I can tell the barrel is chrome lined which is a plus but I want to figure out what the twist rate is. Anyone have any ideas?
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I have an upper/barrel that has no markings on it what so ever. I can tell the barrel is chrome lined which is a plus but I want to figure out what the twist rate is. Anyone have any ideas?
Take a cleaning rod and make a line straight down the length of it, and then measure how far you had to pull it through the barrel (with a brush on it) to get a full rotation of the rod. Hope that helps and good luck!
I told you that a week ago. Why don't you listen to me? It's because I'm man pretty isn't it?