The other thing to consider is that one doesn't always end up landing where you expect to land. You could think you were good to go, but end up in a situation where your endpoint was not what you had expected, and you have a different city to deal with. I speak with unrelated experience: people also say commercial airline crashes after a failed go around, and a maximum landing speed crash into the tree line are rare. Been there and done that.
I don't know what the African prime destination rules are but maybe they could invest in a suppressor.
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This is also part of the reason that one might want to consider a longer barreled gun. No overbore loads, and certainly no brakes. Classic rifles.
All the modern gear has rational reasoning behind it that is used by sensible people. However, fashion still plays a part. Up here in Canada, you can sell 12" barrels all day long. If we were allowed them, you could sell silencers all day long, but just try and sell a barrel length that is the same as the short barrel (in practical spheres more likely an 18") and the silencer, and images of grandad's smoke pole lead to zero sales.
The long barrel is not enough, but it does significantly attenuate sound. First because of more complete powder burn, but also because of greater distance from the ear. A 25" barrel vs an 18" inch barrel, is 66% quieter for the distance alone. Now that is huge, as the energy hitting you ear, but there is a reason why the decibel scale is logarithmic, and it is because we do not perceive the reduction in linear terms. But energy doing work on your ears, does. It should also be considered that while ear defenders are effective, it is often only to the degree of reducing the impact on the ears by 30 or so decibels. Which in the case of magnums is orders of magnitude too little, so one should take whatever precautions that one can. The best being bowhunting.
A rebated muzzle crown also helps.
I am not a doctor or an acoustical engineer, but that is as close as I have been able to figure it.