really dont know what there adding with the steel but a magnet will still pickem up...hey and walmart hasem most of the time...i like the copper plated ones best but like you said the silver ones are what yu see most....ive never shot in really cold weather with a shotgun bet its hard staying warm out there..when i was young had a chance to live in alasks but passed my chance up..dont even remember why i didnot go... charlie
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