Vance, I shot two bulls. One Shiras and one Alaskan.. The Shiras took a 260gr JFP by Freedom Arms through the heart. Like you said, the recovered bullet could be loaded again. No expansion at all and losing one grain in weight. The Alaskan took a 44 Punch bullet through the lungs, however, as the bull turned and ran I grabbed the guides 375H&H rifle and put one round ( Barnes copper 270gr) up his rear. Its funny cause the punch went through but the recovered Barnes started to expand but bent in half that stopped its penetration. I may still have that bullet. However, both moose ran after taking a hit which may explain why both went down so quickly (pumping all that blood through its big body) while using non-expanding handgun bullets. With my limited experience and talking with other hunters it seems to me that a still moose can absorb a ton of lead but if it runs after a decent hit it will expire much faster..