I have purchased a walther uit super rifle. I'm hoping I can get a few questions answered. Any information about the rifle would be really helpful. First off, it does not have a letter date code. It does have the number 75 on the barrel. Can I assume that is the proof year? In the last picture you will notice a number 4 medallion. Does this mean anything special. I assume this just means in was a club rifle but I'm no expert. Anyone have this exact rifle and have a good ammo recommendation to start with? I'm aware that testing is the only way to know but I'm looking for a starting point. Again, any information you might have would be great.