Re: FN SPR in 223 how-to?
Not many options, trust me I've looked into it. As mentioned if you want true CRF you've got the CZ 527, Rem 799/Zastava/Mark X mini, Sako, or Kimber. The 799/Zastava and the Sako don't have the large claw like the Kimber or 527.
Your only remaining, and most true to the original, is looking for a Pre-64 Model 70 that was originally 22 Hornet and was opened up to 222 Rem.
This is the route I'm taking, pending funds. Pre-64's that have been modified to shoot 222 pop up on GB from time to time. It's where I got mine, and at a reasonable price.
Not sure what your intentions are, but must warn you the mag box on the Sako and the 799 is quite small. The mag on the 527 isn't much bigger. If you're looking to touch lands and shoot long heavy bullets, IMO, your best bet the the PF heavy barrel Mod 70, the Kimber, or the Pre-64.