What about 22 WRF in a WMR? I always thought that was OK but while looking at the specs for CCI WRF I see thay say it should never be done. I have even read articles that say to use WRF if you want a lighter load. CCI is the only company I know that still makes WRF (other than special runs by Winchester every few years). Here's the link to CCI for anyone interested - WRF is at the bottom of the page.
CCI 
