Took the Grizzly to the range yesterday, not to do anything serious, but it show it off to a friend of a friend. New friend has an AMT Auto Mag IV .45 Win mag. Sadly, his .45WinMag is now a single shot.
He got a box of ammo (50rnd) from the Old Western Scrounger. This stuff is a very broad flat point JSP 250gr bullet, put up in Starline brass.
When he went to shoot it, the first round did a nosedive, smacked the magazine, which split. He is currently looking for a replacement magazine, so far, without finding one.
I handled the Auto Mag IV, it was interesting, and noticeably lighter than my Grizzly.
He gave me the (full) box of ammo, said if I had any use for it, I could have it. He pointed out the round that "broke" his gun. You could see in the lead where it had hung up on something, and it was just barely shorter than the other rounds. (slight setback).
It, and the rest of a magazine fed and fired in my Grizzly. That stuff is stout!
He shot a mag full through my Grizzly, and agreed! He also said the recoil was more than his Auto Mag IV. Personally, I think it was the ammo. Any way, I now have a full box of 50 (minus 12 fired) of this stuff, think I will reserve it for future testing.
Further updates when I have them.