I bet it will feed from the mag, but if you plan on using that rifle on DG or in a DG area I recommend getting with a good smith. Assuming proper headspacing, it "should" be a very straightforward conversion but needs to be absolutely reliable in feeding from the mag, feeding a drop in cartridge and extracting/ejecting a loaded round at all bolt speeds. I agree any difference, if any, would be in the feed ramp. But you just never know until you do it, what you have. Much more difficult conversions have been done successfully, but the devil is in the details. If anything I would expect it would need to be opened up a bit, which is on the easy list of things to do.