Lou45
R.I.P.
Walmart in NC had a chart showing which states' residents they could sell to and there did not seem to be adjacent rules ... various states across the country were marked. This was in or around Oct 2013. They said I could purchase being from MD but I did not, was only curious when I asked, but this was walmart so who knows what that chart really was.
I tend to agree with the last part of your last sentence.
As a MD Licensed Dealer, I can sell most types (not all types) of long guns to people who reside in about 40 of the 50 states in the country. The contiguous state rule hasn't applied in decades.