Mine had not been welded correctly at the factory, you could tell by looking at the broken weld.
I've had numerous SBHs, and have been around a bunch more being fired, and mine is the only one I've seen fail.
I apologize if I've caused some apprehension.
Looking at the loads you've listed, I'd say your pistol is suffering far less recoil than mine was. I was shooting 300 grain bullets, using a long COAL, and hitting low 1300s in speed, basically trying to get the most out of the .44 mag that I could.
