My (former) Mini 30 was mfg. in '03 or '04.
The only ammo was Wolf or Monarch. Is this ammo produced in Tula?
The ammo needed a second pin strike every sixty rds. or so.
The only reason I sold it was because the thick post sight on older Ruger Minis had limited appeal, and I already had the SKS in the same caliber
(now with a nice Tech Sight).