No. The WRF (Winchester Rim Fire) is a larger diameter cartridge. It is the same diameter are the 22 WMR (Winchester Magnum Rimfire) but is shorter than the magnum, It may be safety fired in a .22 magnum rifle, but not in a 22 LR. 22 LR ammo should NOT be fired in a rifle chambered for 22 WRF.
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