Africa1,

I also use a 458wm sidelock, mine by Marcel Thys. Eleven elephants, four cape buffalo, one zebra, one klipspringer and one baboon mercy kiling, about eight hundred rounds total and I have had no issues either.

When you want to go after elephants, try loading North Fork 450gr flat nose solids. They will take your 458wm into a different league. Penetration is vastly superior to round nose solids. My Woodleigh 500gr round nose solids run at 2135fps muzzle velocity and provide sufficient performance for any elephant, the 450 North Forks at 2190fps and the differnce in performance is remarkable. The North Forks shoot better too.

JPK