A double lung shot is quite possible without shoulder contact, Last years bull resides in my freezer from such a shot. I have my reservation about the ftx bullets as they are boat tail and I find no need for this style of bullet for hunting. I have only seen one bullet recovered and it had complete jacket separation. One is not a pattern. If it were me shooting an elk with a 35, I would try the long dis-continued Remington Mushroom Core-Lokt. I used these bullets in the last 3 elk I shot with a 30-06.