During my early days of reloading (1970s), I cooked up a small batch of .44 magnum - reduced loads - using Speer 240 grain half jacket bullets.
At the time, I was firing my handloads into stacks of magazines and comparing how far they penetrated & comparing that - along with how the bullet itself had expanded - to factory loads, in an attempt to see how my handloads were doing.
I found it odd that the recovered bullet had no jacket & odder still that I couldn't find any traces of the jacket in the pile of magazines.
I found the jacket stuck in the barrel.
Thankfully - no KB - only close call & lesson learned.
At the time, I was firing my handloads into stacks of magazines and comparing how far they penetrated & comparing that - along with how the bullet itself had expanded - to factory loads, in an attempt to see how my handloads were doing.
I found it odd that the recovered bullet had no jacket & odder still that I couldn't find any traces of the jacket in the pile of magazines.
I found the jacket stuck in the barrel.
Thankfully - no KB - only close call & lesson learned.