Semper Fi
Oh my little niche is a bit wider than that. It extends to all US cartridge firing longarms and sidearms.
Wanna talk about: Trapdoors? Krags? the Model of 1903? That is one of my favorites. The Garand as well. Wanna talk technique for offhand, sitting and prone? Reloading? Fine details of various models?
I fired the combloc junk and admit I have zero interest in it.
After all, only accurate rifles are interesting.
As to your being Semper offended if it helps my amusing experiences with blowhards at the range is not limited to former military wannabe precision paper punchers. I get the biggest laughs from hunters sighting in their Remingtons and Savages and etc.
Bragging about last season's 400 yard shot on a muley out in Wyoming. "Yup one shot and dropped him in his tracks."
Then nimrod tacks a 12 inch paper plate to the 50 yard backstop and shoots all around it from a sandbag on a bench with a scope.
I'm practicing offhand at 200 yards with iron sights and shooting smaller groups than him.
These guys are funny.
I'll tell you my experiences with cops at the range some time.