This got me thinking if I've ever seen a .225 rifle and I can't recall one. Just checked gunbroker and there were only 3 .225s listed. 1 M70 and 2 Savage 340s.
Supposedly the 225 win is comparable to a 22/250. It supposedly can be made necking down 30/30 brass to .22. I have trouble necking 30/30's to 25/35 brass.