Honestly maybe my favourite part of being an author is being able to get briefly and deeply obsessed with any topic I choose - it's a rare privilege.

Beginning and then almost immediately dropping niche hobbies (eg flight simulators, poker, guns in the linked post) is transformed from something a spouse or partner might see as an undesirable and potentially annoying personality trait, into: "this is research, darling, it's my job", which is probably significantly more annoying.

It is easy to make mistakes with a verb one might not think to question like "cocked". Of course, ideally, you'd question every word used, so that the % of readers who understand its full associated meaning don't have their immersion in a story suddenly & painfully torn away.

To be less glib, I find that when speaking about a topic from a character's perspective - in dialogue or narration - a relatively important part of empathising with their point-of-view is understanding the physical and linguistic structure of their world. Sometimes I find there's no way to do this without putting hundreds of hours into understanding the tools they would use or the way they would live. Write what you know!