Mike,

Yeah, now that you pointed it out, it does look like that.

But I looked at the original digital color photo closely (meaning I "blew" it up on my computer screen) and the barrel has a camo finish--which isn't visible in the black-and-white conversion. The "step" is actually a pale line in the camo.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck