I just get back from the range very happy.
I use some more of the new powder (95grs) and get both barrels into 4.5 inchs at 50 meters.
The trick is to shot without any rest = 6 shots starting from clean lubed barrels into 4.5".

Some times left barrel is more accurate than right barrel.

So next shooting will be without rest.LOL
Next time I will try each barrel separatelly and let you know.

Thanks
Martin