I don't believe there are 405 grain JHPs for the 45-70, problem solved! Seriously, only the 250-300 grain bullets have hollow cavities. Deer easily succumb to the 300 grain jacketed bullets at moderate velocities. The 350 grain flat nose is a good all around bullet in the 45-70. While they work well, the 400-405 grain jacketed bullets are really not needed for deer and increase felt recoil.