James Jr. Not sure but that contour on the barrel of a predator is the same as the M7 as magnum model ss .I had .663" on the muzzle of the predator camo and .643" on the stainless steel mag muzzle. I don't know if the camo is multi layered paint or decal but appears thick. Either way at 22" length they aren't whippy like the regular m7 20" contour. Mb

" Cheapest velocity in the world comes from a long barrel and I sure do like them. MB "