I donno, the Goldens I bought recently seem to work just fine in 15-22. Never had a failure to fire ion the about 700 I fed thru it so far.
I did have some that felt weaker when fired, but it still cycled.
My wifes Ruger Mk3 will have a failure to ignite about every 100 rounds using the Goldens. Maybe the 15-22 wacks the primer harder? I donno.
Either way,I would buy them.
Will reserve my Federals for comp days, when I know every round must be accurate and must go off when I squeeze the bang lever.