Can't see what the difference is with importing say a 338 Lapua or having one built here in NZ. As far as I know there are no restrictions on where you can shoot a 338 or 50 cal so it all sounds as if it's hog wash. I have a 338 Win Mag and have never been told where I can and can't use it, a mate of mine had a 50 cal built same thing no restrictions. Sounds fishy.
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