I buy "estate" ammo when I can beat the auction house to the punch. I bought several boxes of older factory ammo recently and this box was in the mix.
I'd never seen Remington ammo like this before, so I did a little internet search...
Remington?s Multi-Ball Ammunition
Is the Remington "Multi ball" load really that bad a round to carry? - Glock Talk
Multi-ball loads for a .357? [Archive] - THR
... and discovered it's about THE most despised 357 ammo that Remington ever put out.
I thought the idea of more than one projectile per round was an often used and sometimes successful idea. As in a .410 shell with 3 slugs or buckshot for any gauge shotgun.
I guess this one was underpowered, inaccurate and scorned by every gun magazine that tested it. It didn't last long.
So, I'll put this box up and when some of my know-it-all friends tell me about 357 ammo, I'll say "bet cha' I got a round you never saw before!" and spring this on 'em!
GF