3. blood trails are funny things. (this I already knew being an archery guy)
4. I need to shoot better.
5. Learn to track, sooner or later #3 will bite you in the ass and you will need it.
As far as #3 some of my heaviest trails have been with a broadhead.
My hardest to track came from a 30-30 with a frontal shot. Guts plugged about a 3" exit.
The .224 bullets can leave a lighter trail but I have never had issues with anything from a .243 bullet but that may stem from me preferring lighter bullets or soft if anything over 85 grains.
The last time that bear ate a lawyer he had the runs for 33 days!