Thanks for your reply Tinker.

It was my photographing that made the left barrel look like that. Camera is set closer to the bore axis of the right barrel, and it then shows the left bore more "from the side". Both barrels have the same rate of twist. Rate seems to be approximately a one quarter turn along the length of the barrels, but I didn't measure the barrel length yet. Now the gun is in the safe, and I have other things to do, but within a few days I'll share all the measurements and technical data with You all, if You're interested.

Action is tight on face, and the soldering of the ribs seem to be OK as well. However, there actually is a clear crack at the wrist, and also a loose chip of wood in front of the right hammer. So, no shooting with this rifle yet.

Do any of you have any ideas about the stalking safety issue (see my last post above)?

Another question: There is an "M.S." in the butt plate load data after the 3½ drams. What does those letters stand for? I guess the drams for BP measurements are 'avoirdupois', but why the M.S.?

Regards,
Saku