Thanks for the tips. I had thought about the Makarov bullets for plinkers, but couldn't even source those the last time I looked.
My friend who fixed the cracked wrist on this stock thought that 2 3/4" clay loads would be fine, but I'm a little leery as the barrel walls are pretty light. The gun was originally proofed for black powder and re-proofed for smokeless and copper bullets in 1920.
The rib on this Buchseflinte has widened rib sections and a side notch for a scope mount and are not like the AKAH claw mounts I am familiar with. Do the rings on yours mount like this? Hard to tell from the pictures.
Thanks again for the info and love the Llewellins, makes me miss mine.