Is the 9.3x62 Mauser a good ammo for lions, enough efficient ?

Howa 1500 .300WM Scope Bushnell Elite 4200 6-24 x40 + Parallaxe
CZ 550 9.3x62 Mauser Scope Leupold VX2 3-9x40
Marlin 1895 45-70 Scope Hawke Endurance 30 1.25-4.5x24
12 Gauge O/U 18" barrel
Cool!