Damn Charlie, nice shooting. you still have it! You may find that the SK Standard Plus equal the Ely your using.
My 504 is in love with Norma Tac 22's, some older CCI subsonics and Fiocchi subsonics.
Ely, RWS, and Lapua prices are getting beyond my reach. I do keep enough RWS Subsonics around to hunt with, but don't shoot much paper with them anymore. Now that RWS is making Norma and Geco and offering it at lower prices, the same with Lapua making SK jag and Wolf, it makes it more affordable and with darn good accuracy.
I see where RWS also makes the Federal Gold Match ammo. So who is making the Fiocchi subsonics.....CCI? They shoot pretty good also.
