RE: 204 Ruger?
I've had one for three years now.....No it's not a .204.....it's the same except based on the .223 case verses the .222 Mag case.
If you're a prairie dog shooter this round will make you smile.....it's a great round!!!
Is it needed?.....of course not.....but in fact at least 75% of today's centerfire cartridges are not needed!!!!