I Highly doubt that lacquered cases would ever make it onto a modern battlefield. Heat resistant lacquer would be in short supply while an old substitute (wax) would not. The Soviets have shown that painted steel cases can work very handily in modern actions. Stock AR-15's can use the Wolf brand steel cased ammo without a problem. Lacquered cases were used during WW2; but modern powder and lacquer DON'T mix. A hot wax seal around the bullet crimp would work just as well for sealing out water (rust would be a "non-issue" in the cottage industry reloading plant, they simply wouldn't care) and could be used to seal plastic shotgun shell hulls. The brass cases from fired ammo are pretty hardy and even a "green" brass case can be polished very quickly in a case tumbler. Most rounds can be reloaded between 10 and 12 times providing they weren't loaded to +P pressures (which will reduce case life). Even the harshly "dinged" cases from an H&K "enhanced blowback" roller locking action (MP5, G3, HK33/41, MG3) can usually be salvaged by running them through a 2 piece (inside and outside) resizing die. I would roll a 1d10 for 6 or less for successful resizing of crimped cases.
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