“But, I am curious as to why the dude was taking an old bolt action 410 to Costa Rica so to hunt. “
He’s a Marine, and Marines carry arms as a natural and integral part of their person. He probably gave no thought to the 410. It was just there. A tool. Something you carried around. Kinda like a spare tire in a car. 99% of people give no thought whatsoever to a spare tire; it’s just there, a tool, waiting to be used when needed.
That’s my best guess.
Well, sergeantdave, that's the most benevolent guess that I've seen in awhile. Being that the shotgun reportedly was inoperable it sure wasn't much of a tool. But, nevertheless, he got a raw deal from the Mexicans whatever his objective was with hauling that old shotgun down there. I would suggest to him if I should ever have the opportunity to use his thinker in the future though :)