“As I understood it you were trying to defend the myth of the “tumbling .223””
I never mentioned ‘tumbling’ although if you have a slow twist it will tumble.
It will tumble in the air as it transitions to subsonic. I suspect that the myth of the “tumbling .223” was started when they were trying to get the troops to accept the “Matel rifle”. It was easier to create an untruth than to teach physics to 19 year old draftees. Personally, after carrying a 03-A3 at 11 lbs. hour after hour day after day deer hunting as a teen I would have been grateful had someone handed me a 5 lb rifle with twice as many bullets. Maybe that’s just me.