@Ed Lally what happens in a third world country stays in a third world country.
But chit-chatting about it on AH is a bad plan. There are a pile of unemployed, cry-baby, nosy PHs and guides that haven't had work in 3 years monitoring this site with jealous eyes.
When they see your post and can deduce who you're bringing ammo for, they get jealous and will try to raise a stink about it. They are a bored and underemployed people right now (professional guides) and they get furious to think one of their fellow professionals is getting something and they are not. Hence, whatever you do in Zim, whatever you bring in Zim, be aware there is a whatsapp chat group of 200 people in Zim talking about it, perhaps contemplating letting harm befall another one of their own.
Zimbabwe is a corrupt country and all ammo is smuggled into the nation in some capacity. The ZPHGA leadership gets deeply offended when you question the integrity of their nation even though this is no deeply hidden secret. Heck, I've seen 416 Rigby for $60 a ROUND in Zim because that's what it costs to get it there the "slow road" to the retailer.
So on one hand, in the mind of Zimbabweans, everything must be "totally above board" and on the other "it is absolutely impossible to have a normal supply chain of goods enter that nation". I'll leave you to figure that oxymoron out.
At any rate, you bring in ammo, you shoot it there, some of your shot ammo results in brass getting lost in the bush, you travel home with some empty boxes of ammo as part of your safari. Customs upon departure understands that you don't always recover every spent cartridge.