The guy in this link hunts in Zambia. He was living in the States. I almost booked my first hunt with him, but could not get a high level of confidence with him.

It does seem he has successfully hunted with the lever guns.

One of his articles he discusses hunting elephant with NF cup point solids. That I will never understand, even if he killed an elephant with one.

http://fortyfiveseventy.com/2014/04/27/african-guide-gun-matched-set/