They were out of a 9.5" 44 Mag. The 300 gr. 44 version does not have a mag jacket. All jackets and cores separated. This hunt reaffirmed my love for my single shots.
This is where I state the oft coined phrase........."At what point in the killing of your sheep did the bullets fail?"
Most of the bullets I use (rifle or handgun) are standard Cup/Core design. Depending on impact velocity and shot angle (bone struck)they sometimes smear most of their core or even separate in penetration. I've even shredded a few due to high impact velocity. But............every one of them kills with authority and the autopsy shows extensive damage.
More so than any hardcast or bonded bullet I've used. If I were going after buffalo or 500+ pound game.............I'm all in for cast or bonded bullets.
If you want them..........use them and never look back. But, your bullet did not fail. It did as designed, being a cup/core, and killed your animal.
You can use them as desired, but a sheep and a pig do not "require" a cast or bonded bullet. Not with good shot placement.
This is not meant to be rude or argumentative. Just trying to dispel any misconceptions.