but the entire jacket was intact and a tiny hole was formed while swaging. The jacket was heavy.
I have some original CDM .44 AMP ammo with bullets like that! 240gr, and on the mild side for the caliber, only clocking a bit over 1200fps...
Won't expand on anything, but will punch through some impressive thickness of steel. Like the rear differential of a 65 Ford Galaxy. Fired into the rear face of the differential, it almost exited the front of the housing!
I do remember the factory JHPs of yesteryear! They were awesome! Worked every bit as good as full metal jacket ammo!!!
Then they got improved, and only worked as good as FMJ part of the time, the rest of the time they would open up really well, in clothes, on a watch, or a lighter or belt buckle, before entering a body...and usually stopping short of the vitals if they made it into the body...
Bullets for handloading were a better, at least by the early 70s. I remember loading some Hornady 115 JHP in my Dad's .38 Super (we didn't have a 9mm in the house, ), and while I never shot a person with any of them, I did shoot some other things and they worked fairly well. They had about a 1/4' or so exposed lead "ring" above the jacket around the hollow point, and while expansion wasn't huge, there was some...
And then there came the Speer 200gr "flying ashtray" .45 slug. Damn if that wasn't the bee's knees, hehehe...
Especially if you pushed it hard, like 1000fps. A little beyond what the book listed, even in those days, but you could do it, and it was impressive.
Murphy is still out there, and everything can fail, including the "best" JHP ammo (in any caliber). So, my "default setting" is in my signature line...