This has always been a problem for me with Hornady bullets. It started years ago when I was hunting with a Hornady .308/200 Round Nose, shot from a 300 Winchester Mag.
I shot two elk with this bullet and both time I found the copper just under the skin on the entrance side and of course they never exitied. Yes both elk were harvested, so yes I gues the bullet worked but i certainly would not trust it.
When I moved from centerfire to muzzleloader the first bullets I tried were XTP's and the experienced continued. Not always did they strip but on occasion they did. Of course after my ML discovery of the the problem I immediatly switch to Noslers as I had done even for centerfire hunting.
I was shooting some 250 FTX's the other day at the farm and today when I set the target out I found this FTX in the trough in the ground. Shook my head... but I picked it up for pictures. Yes, I know shooting this bullet into wet soil if tough on a bullet but I am not certain howm much tougher it than shooting throught the hide of a bull elk - especially if you strike a major bone.
Fore myself Hornady's are good for shooting paper but I never really trust them when shooting a game animal.
sorry for the heavy yellow color - that is what I get for using a yellow back ground paper....