You can shoot WRF in a 22 mag. It works exactly the same as shooting a 22 short or long in a gun marked for 22 long rifle. The WRF and 22 mag are both 224 , the mag just is slightly longer. I had this 1890 Winchester re chambered from 22 WRF to accept 22 mag. My gunsmith said it was safe but since I had it done someone else thought it not safe. The gun already had a pistol grip stock with a cheek piece added before I had it re chambered. It shot just fine.