The first elk my dad killed in 58 was a Roosevelt, and a mature 6 Point several years old. The bullets preformed poorly, flatening out against the front shoulder blade. The chase lasted several hours, several miles, and several more shots before he was on the ground. Undoubtdly the toughest elk I have ever eaten. Mom would tenderize the steaks, marinate them, and then cook them. I think shoe leather would have be easier to chew. The second worst was a (lead) cow killed in a farmers field near Elgin Oregon. One shot dead right there, dressed and quartered within the hour. Thats the year I learned not to shoot the cow in front. Not as bad the bull, but a challenge just the same.