Quote Originally Posted by Oscar77 View Post
If you are curious, take a tight fitting bore brush with a rotating rod (like say a dewey) and run it down the bore.
Take note of the revolutions and how long it took and you will find your twist..........

PS: It looks old, so look all the way around the barrel (not just on top where they usually are marked) and back to under the FSB...........
You might just see a "12" ............. I doubt that is so old, it's a "14."

The barrel is marked "C MP Chrome Bore". According to what I've read that would make it a 1/12. There are no other markings anywhere.