That is correct. And 10/22Ts DO NOT use polygonal rifling.Pdwight said:Because you have a hammer forged barrel does not mean it has polygonal rifeling.
Apples and Macintosh's
Glocks DO NOT use Polygonal rifling since you can see lands inside the barrel. Glock Marketing people can call it what they want, but they certainly exaggerated. Glocks use a modified hammer forged rifling.
Take a look at a HK 91 or P7 if you want to see a true Polygonal barrel. There IS NO LANDS. The shape of the interior of the barrel resembles that of a polygon there is no conventional rifling at all. HK patented and perfected the real Polygonal rifling. You can use lead bullets in a true Polygonal barrel. I've done it.