Sorry for the delay in my response, I'm a busy boy lately and only log in to NES if my e-mail tells me I have a PM.
This website and forum have been very helpful.
It's a fantastic place to learn.
I am a New York state resident. My wife's family has 100 acres of land which they use for target shooting. I have traveled from New York to Massachussets with a bolt action 308. I do not have any permits (NY or MA) but am legally allowed to own the rifle in NY and thus have traveled to MA with my bolt action 308 under Mass General Laws Ch 140, Section 129C section p) which allows for "the carrying or possession of conventional rifles, shotguns, and ammunition therefor by nonresidents who meet the requirements for such carrying or possession in the state in which they reside.".
Correct, that is legal. Not well understood by many cops, but legal. Transport the gun out of sight to be safe, and locked up & unloaded to comply with MGL and the federal Gun Free School Zones Act. Just remember that even with 140-129C exemption, you can't bring mags that hold more than 10 rounds for that gun, assuming there are any for that make and model.
I began researching whether it would be legal to bring an post-ban, NY-compliant AR-15 into MA. It appears to be illegal due to it not being a "non-large capacity rifle". OK - fine.
Yes, it is illegal for an unlicensed non-resident to have a "large capacity" rifle, pistol, shotgun or mag in Mass.
So I thought about getting a non-resident LTC. Unfortunately, an MA non-resident LTC requires me to have an LTC from my home state. I live in New York and, specifically, Westchester County, which for all intents and purposes will not issue an LTC.
Disclaimer: I'm a Mass. law junkie (non-lawyer at that), and off the top of my head I only know generalities about NY law.
Correct me if I'm wrong, but NY is similar to Mass., where an LTC is needed to even possess a handgun, but many jurisdictions will restrict the license to prevent carrying it. Whether or not DCJIS will recognize that I don't know, I've never gone that route. I'm going to shoot a PM to Rob Boudrie, our NY law guru, to see if he'll chime in and clarify this for you. You might want to call the state to discuss that with someone who knows before flushing $100 on an LTC application.
Can someone confirm my logic? Practically speaking, is there a legal loophole? E.g. could I seek a PA or CT LTC (not technically my home state) and use that for my MA non-resident LTC?
Let me put it this way. If you read through my posts on here, you'll see that I've found some off the wall Hail Mary type legal smorgasbord loopholes in various places on Mass. law. If you get into it deep enough, there are some bizarre rabbit holes to follow in MGL. But there are none here, and believe me, I've done some looking.
Interestingly, MGL doesn't require that you have a home state LTC to get what is traditionally known as a Mass. Non-Resident LTC. However, the requirement is listed on the application, and I wouldn't bet on you winning that fight in a Mass. court. Also, when you mentioned a CT/PA non-res. LTC, I'm guessing you're referring to the "competition exemption" I've laid out earlier in the thread. That exemption only applies to handguns, and doesn't cover large capacity.
There is one trick you could pull to avoid most of this though. You say your inlaws use their land for target shooting, right? If one of them has a Mass. LTC, they could meet you at the NY border, take possession of the AR there and bring it into Mass. for you, then drive you back on the way out. It's not fantastic, they'd have to supervise you anytime you handled the gun, but it could be simpler than getting a Mass. license. The AR would still have to be in compliance with the Mass. Assault Weapons Ban.