What you need is pin-point accuracy, a precise aiming point, and good light-gathering capability.

In short, what you need is good bolt-action rifle with a quality scope. For leopard hunting, a double is just about as worthless at teats on a side of bacon.........

You don't need some howitzer to kill a 150 lb. leopard, either. Anything from a 270 Win. to a 375 H&H will do nicely.

Keep it simple, and leave the complicated theories back home.

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