Mine works like a champ. The fact that the Mark ll has been available for a while would make me think that the mag issues have been worked out on the Mark ll guns. No issues at all with mine. The new E receivers probably contribute to their reliability. My Mags are perfectly straight and not curved like some.Thanks I will look at a Savage. I have a Savage fvsr. I admit it is accurate but I think Savage could do better with their mags. Have two mags for it and both have gave me trouble. Now my Savage in 17 hmr is a heavy stainless barrel with the nice gray/black stock. It works fine.