Failure to feed in my Husqvarna M38

[xa-coupe]

hard to tell from the pics but are you sure the extractor claw is okay? if the rim wont slip under the claw cleanly this might cause some issues. I would look and feel for obvious burrs and faults before sandpapering or filing anything.
Also, the cartridge you are using in ImageShack - Online Photo and Video Hosting looks to be damaged just prior to the shoulder. It could just be the pic but it might be a clue if it wasn;t there before putting into the rifle.