Those 33 grain Accutips in my old Marlin bolt 22 WMR shoot amazing to this day. You're right how well they shot. It has been awhile since I have shot that rifle. It's lived a hard life.
I think I said this before, but the first time I tried them, i was amazed. I wish I had a truck load of that first lot I tried. The old rifle shot a 3/8" 10 shot group on its first try, with that ammo. I was pretty amazed with that performance from such an old rifle. It will outshoot most 22wmr's, in my experience.