Thanks everyone for the replies, I think the CZ 527 in .223Rem is the one only because of more common cartridge and lower price of ammo and better for the shooter who does not reload. The price of ammo in the future is the big cosideration for instance some rifles I have in fox or bigger calibres

5mm Remington Magnum (ammo not made anymore)
.22 Savage Hi-Power, Norma make it but very expensive
.225 Winchester, ammo not made anymore

I believe the .22WSSM will join the above but if you reload and like exotic to extinct calibres (me!) thats great but for the non reloader on a budget a common rifle with common ammo is the way to go. Thanks again for the advice

Steve