I wouldn't suggest it.... the only thing I believe you can to is travel through a state if going to a "match". Maine is real easy to get a NonRes CCW license.
For non-CCW purpouses Maine is "free by default". One does not need
an "excuse" for having unloaded guns in their trunk in ME, VT, or
NH. There may be slightly varying storage regs/nonlimitations for the
unloaded guns, but aside from that, one does not need to
have a "reason" to merely have guns while traveling within the borders
of those states.
The only states which need "excuses", eg, invoking FOPA and the
like, are all ones you want to stay away from anyways. MA, NY, NJ,
etc are all notoriously bad... and they're also bad at ignoring the
applicability of FOPA. (Try getting stuck at logan with guns without
having a license in hand... sheer unadaulterated crap)
There are probably less than a dozen states that are not "free by
default". Most of them allow "mere posession" of guns and ammo
without a license. Obviously the restrictions for use increase if the
guns are going to be loaded for any reason.
One major caveat to this though is... watch out for states that DO NOT
have state level preemption on gun laws. Illinois, for instance, is a huge
patchwork of garbage. One moment you could be legal, drive into a town
that bans handguns and you're not.
-Mike