Hmmm. Has anybody done that? With no ill effects? I can picture a lead core exposed at both ends maybe squirting out and leaving the jacket behind stuck in the barrel? Maybe farfetched. My imagination is working overtime this morning perhaps!

Anyone who uses .224's in a HP is certainly not doing anything overtly dangerous and should do so if they wish. (Just don't whine if you get carried away and shoot a bazillion of them and wind up eroding the throat excessively. Not saying it's guaranteed to happen, but why risk it with an irreplaceable 100 year old barrel.) It's just that with proper .228 bullets available from several sources there isn't an absolute need to use .224's.

"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty