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In Hatcher's book page's 338 to 343 he talks about tin-can ammunition, the tin plated bullets used at one time.
The tin plating and not the grease was the cause of the blow-up's. Please note though the grease did add to very high chamber pressure's.
The tin plated bullets soldered themselves to the case neck because of neck tension. Also note all components used were NEW and not reloaded ammunition. The case necks were bright and shiney, when tin plated bullets seated into the necks they pressure soldered them selves to the neck.
Testing the bullet pull in this ammo Hatcher found that some cases it took over 600 pounds to remove the bullet.
Also note spent bullets were found down range with cartridge necks still atached and rifling engraved onto the case neck.
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