Yep. Sounds very suspicious. Unguarded (or poorly guarded) freight trains with guns, and the gangs just happen to know how to steal them. Most likely some insider is tipping them off. There can’t be too many people that know what’s on the shipping manifests and when/where to find the guns.
My brother-in-law in Maine died a couple of years ago. He had 2050 guns in his living room. 150 guns ain’t a more than a boil on Mike Wallace’s butt. My sister sold them off and has enough to line on for the next few years