“Scalia, one of the more conservative minds on the court, is on record (D.C. gun ban challenge case) as saying that there can be constraints on the 2nd Amendment.”
I think what Scalia was saying regarding limitations on the 2A is that the US military has tanks planes and artillery and the 2nd doesnt cover weapons like that.
His understanding is incorrect. Historically, before a standing amry et al, owning artillery pieces (for those who could afford them) wasn’t uncommon. The base level was every man owned at least one long gun w/ the means to feed and care for it.