Explain to me how you open up the boltface and make it a push feed?
The 6,5x55 case is larger in diameter than the 8x57 the M38 was made to feed. Chances are, the mag box is too narrow or the feed rails need attending to. Could be that the extractor is too tight as well since the rim is also larger. So as you can see, it could be any number of things or a combination of things.
