In this video I take an in depth look at bullets for deer hunting including the 2 common types of failure which are fragmentation and failure to expand. I discuss the factors that cause both including velocity, tip design, bullet size, and construction. Also discussed is how bullets are created for the caliber and not individual cartridges which makes selecting the proper bullet difficult because of changes in velocity between cartridges and also changes in velocity as impact distance change.
Clink the link below for a great source of information on many many different cartridges and bullets. For cartridges specifically click on "Cartridge Research"
https://www.ballisticstudies.com/