G.T., I have been loading Berry plated bullets - 115 grain, truncated cone - for use in my shooter Lugers to an OAL of 1.100" for quite sometime. In any 9mm with a chamber cut like the original stepped chamber of the Luger, they work beautifully. In more modern chambers with a short leade, they jam badly as the bearing surface is seated too far forward. For them to work in many newer pistols, the OAL must be reduced to 1.050".
Below is my Luger load.