I'll add that out of curiosity I gave this a quick test...
30+ years ago my dad traded my gramps a 38spl with a few boxes of various ammo, (FMJ, JHP & Bird shot) I recently inherited that same .38 along with its ammo, all still in the same boxes my dad gave gramps. Gramps wasnt much of a handgun shooter...
I picked 3 rounds out of ten in one of the flat plastic boxes... all 3 fired.
Most all of this use-it-or-lose-it nonsense is from "experts" who worry us about humidity, sweat, drenching it, old primers, blah blah... or from those who are on the payrole of some ammo manufacturer.
I bought a 4.5" angle grinder the other day... its instructions stated to use ONLY So-and-So brand of grinding disks or "severe injury or death may result".
Burning up good ammo just for the sake of replacing it with new is the same variety of crapola.