Thread: advice please

Originally Posted by rs200nz

sweet thank Jake. I'll put it apart tomorrow and see if I can see any stamps for the twist rate

Put a tight fitting patch on a jag on your cleaning rod, mark a line up the rod,insert into barrel and mark it push further watching the line on the rod till it has done one full turn and mark the rod again, distance between marks is twist rate IE 10 inches between marks would be a 1in10twist.
1 in 11 or 1 in 10 your golden 1in 12 or 13 while not impossible is going to be tricky to run projectiles with a high enough bc to stay supersonic out to 1000m.