Yep!

When I was in basic training in the Army our standard rifle was the M-14. We had a drill sargeant tell us that the .308 cartridge was more powerful than a .30-06. At least I was smart enough back then not to tell him that he was full of sh**.

Many years later I sat in on my son's hunter safety course, and one of the instructors told the kids that the .308 was a larger caliber than a .30-06 because "08" is larger than "06". After the class I explained the real difference between those two cartridges to that instructorl