My Mini 30 ('04 vintage: arrived here '08) operated with only Wolf and Monarch steel ammo.
There have been about ten misfeeds with both (ten-rd.) Promag metal magazines, but this is averaged into about 1,500(+) rds.
I've seen a buddy's nice WASR "AK" clone misfeed after just eighty rounds.
As for misfires on the first pin strike, the Ruger has had about a dozen in 1500(+) rds., and does fine on the second.
Unless somebody plans to go to the Middle East and fight alone against Al Qaida or Hezbollah with it, no sweat.