I never see anything except Thunderbolts, Golden Bullets and Cyclones around my area. I have rarely seen subsonic Remington with the occasional box of Remington Eley (which I understand is the same as Eley Match Black EPS which I have never had any luck with). This may explain why my experience with Remington is different from some here but I have seen people who say Golden Bullets and Thunderbolt is good ammo. None of it has worked well in my rifles but I have never tried Remington Sub-sonic. Like I said, it's hard to find in my area and when I do see it I'm usually in a gun shop that has a good selection of ammo so I end up with different ammo.
I don't think some here realize just how terrible my experience with Remington rimfire ammo has been. It's been BY FAR the worst ammo I've ever shot in my life. I grew up shooting Remington ammo, which worked fairly well back then. But I shot Federal almost exclusively for over 20 years because it was very good for bulk priced ammo and my Marlin loved it. When I bought more Remington because of the ammo shortage I was shocked at how bad it was. They should never have sold me ammo like that because I tend to distrust everything they do at this point. Who knows when they might sell me more junk ammo like that.
BTW I've shot .339" groups at 90 yards with my Marlin 60 using CCI SV ammo.