10 or 11 ounces loaded it the threshold for me.
Easy to say when
your 10 Oz. 380 develops 500 foot pounds of energy.
Highly doubtful.
Five hundred foot pounds was Just my hyperbole - though it could be true.
Maybe your best "pocket 9" is a hot loaded 380?
Gotcha. I doubt any of them will weigh 11 oz, though.
I could see a hot .357 snub-nose maybe making 500 ft.lbs, but WOW would that be a handful.