I'd be interested in any documentation references to gunsmiths being especially singled out for retribution---because of being gunsmiths.
I've read primary sourced accounts people being targeted for political opinions, because they had more "stuff" to plunder (probably the most common, and a well off gunsmith/merchant might fit in here), family, religious, or ethnic reasons. However I've not seen much about occupational targeting--other than preachers and priests in religion based violence----and of course everyone hated lawyers and government/tax officials.
I'm not saying it didn't happen, and its sounds logical from our remove and I'd like to learn more.