[lettergram]

Yeah, I generally agree.

That said, there’s a couple things:

1. You’re technically allowed to travel through anywhere with any firearms in the US (I only had a magazine, not a firearm) legally. That includes planes, but you have to check the bags. That said, they can still arrest you and not follow the law.

2. I carry a conceal carry permit with reciprocity with most states for this very reason. I actually showed it to them and it made things much smoother

[lsllc]

You got really lucky! In MA possession of ammunition without a (MA issued) permit is a crime with up to 2 years in jail.

MA doesn't have ANY reciprocity with other states regarding your CCW and the City of Boston in particular has a ban on any high-capacity (>10 rounds) magazines of ANY sort/age. MA banned hi-capacity mags but only ones made after 1994, pre-ban ones are ok, just not in Boston (and I think a few other towns).

You are right about peaceable journey, but I would not risk any of my liberty or rights on the good nature of a LEO in such a state.