Hi, long time lurker here. I was wondering if someone could answer some questions regarding a Canadian bringing firearms into the US. I would be temporarily importing them with an ATF form 6NIA (here).

1. How do they (the ATF) want a rifle/carbine with a collapsing stock measured for OAL, extended or collapsed?
2. Can I bring reloaded ammunition?
3. Can I as a non-resident legal alien open carry in Montana? From what I've read here it seems like I should be able to. Also can I conceal carry in my vehicle, and do I have a duty to inform police if I am pulled over?
5. Can I bring my Italian Garand, I believe that the only non US made part is the receiver.

Thanks, John

none of that sounds like a good idea to me.... However, I have no idea.

In for the education

1. OAL is measured with the stock extended.
2. Unsure.
3. It would appear so. Second Amendment Foundation filed a lawsuit against Montana about a year ago to allow resident aliens to get CWPs, but Montana only requires a CWP inside city limits, and does not require one at all for open carry. Vehicle carry does NOT require a CWP; you are in the clear here. Montana only has duty to inform if the officer asks.
4. Should be GTG.

Enjoy your stay in the US!

ETA: I am not a lawyer. You may wish to consult one prior to your trip.

IIRC, there is something about needing a 'hunting license' for a legal visitor to posses a firearm.
Or maybe that was to purchase a firearm.

The info was / is on the BATFE site, someplace.

Good luck, and make sure you do all the Canadian paperwork so you can take them back with you.
Getting guns into Canaukistan can be a hassle, at least according to folk lore.

This in red is what I thought, but wanted a second opinion.

Thanks

The ATF removed the hunting licence/match invite requirement for Canadians a few years ago. But I'll probably still purchase a licence to be safe.