There are a few members here that have, as far as I'm aware its the same rules as it is with pistols but IANAL... however I will forwarn you that the rules of the forum are to keep the topics to OCing pistols only. Not to sound harsh of course, but FYI.
(14) LONG GUN CARRY IS OFF-TOPIC: This web site is focused on the right to openly carry properly holstered handguns in daily American life. We do NOT promote the carry of long guns. Long guns are great! OCDO co-founders John & Mike and most of the members of this forum own at least one long gun - but due to urban area issues of muzzle control, lack of trigger guard coverage, and the fact that the long gun carry issue distracts from our main mission to promote the open carry of handguns in daily life, we will leave long gun carry activism in the capable hands of the future founders of web sites about long gun carry. Exception: This rule does NOT apply to discussions about long gun carry in jurisdictions such as California which ban handgun carry and thus require long gun carry as a matter of public policy