What is the twist rate Ruger number 1 243 international?

Answer 1

I don't know the answer, but here's how to measure a rifle's twist rate. First, get a cleaning rod that has a free-spinning connection with the handle. Put a very tight cleaning patch on the tip. Maybe a cloth over the top of a bronze or plastic bore brush. Make sure it's a tight fit in the bore, so it fully engages the rifling. Push the rod in a few inches and watch the surface of the rod start rotating as it goes in. Stop and mark a small dot on the cleaning rod at least a foot or maybe 14" away from the chamber. Then mark a different kind of mark (like a line instead of a dot) at the point the rod enters the chamber. Push the rod into the bore slowly until your dot has made exactly one revolution and is now very close to the chamber, but still outside of it and still visible to you. Now mark another line across the rod at exactly the point where it enters the chamber.

The distance between the two lines (not the dot, just the two lines) is the twist rate. The dot is not for measuring distance, but is only for determining when one full revolution has been completed.

Good luck. Your rifle should have a twist rate of somewhere between 1:9 and 1:12.