The lower holes are 1 3/8" apart, the upper are 2 3/8" apart. They are about 3/8" c to c vertical. The upper rear hole is 3/8" past the lower rear hole.

Glad I posted here. I joined the forum a long time ago, but never partcipated until now. Thanks for the help. I posted this sim thread on 2 other sites and did not get as good info.

Thanks to all

BTW

I have several other martini's. One large caliber that was identical to a military model (before the Boer chopped the forend) but no military markings. Bought it from someone who imported it from S. Africa. I have made a new stock and made it similar to a sporter from that era. It is fun to shoot, but it isn't perfect… my 1st stock attempt.

Have another cadet that needed some love. Made it into a MSSR (my poke at AR's) a modern single shot rifle. Bored it out into .357. Textured stock and red dot sight. It is one of the most fun guns I own. (and my wife say's I own a lot!)

I have a 3rd that is a 12/15? with a .22lr bull barrel, Paker Hale sights target forend etc. Right now it is staying that way… not sure if I want to modify it into a 7-30 walters or a 25-35.

I just love these little SS. Can't get enough of them.

Thanks to all.

Jerry