You can become a Supporting Member which comes with a decal or just click here to donate.
I know I didnt want to mention it ! LolSorry about that, you had it in the header but not in the description, Oops, LOL
1" across flats 1-20 twistRate of twist? Width?
Actually the second picture I posted had a tape measure in front of barrelsWill check when I get home not sure on either my bad should have checked before post !