[mrerick]

Juan Carlos, welcome to the forum!

Is your Luger one from the WW-I or WW-II era, or a more modern one?

Please post some pictures taken in natural light (not flash).

The grip and solid wrist support that David mentioned are the most common cause of feeding problems. Pay attention to that first.

Use only normal velocity ammunition. Don't use anything like +P or surplus machine gun loads. The regular Winchester or Fiochi that David mentions should work fine.

It is possible that the spring in the magazine or the Luger's recoil spring is fatigued or perhaps the wrong spring. These things do affect timing. Don't try and disassemble the magazine yourself. Again, as David mentions, try a replacement magazine first.

If you have an all matching gun in original finish from any era, it is collectible. Collectors value pistols as close to the original factory state as possible. Refinishing one, or breaking a numbered part cuts the value down 40%, and also destroys some of the history associated with the Luger. It is particularly rare to find a Luger with it's numbered magazine.

Marc