This gun just showed up for me to start playing with. I also has a set of ported 26" 12 gauge barrels that interchange with the rifle/shotgun barrel set. Just waiting to receive the scope base from Tradex so I can scope it to test the groups.
Found loaded Sellier and Bellot out of Tradex for $40/20 and a flat $20 for shipping no matter how many boxes you order, so about the same price as new brass. I have had excellent results shooting Sellier out of a number of rifles so with 5 boxes coming should be a while before I actually have to reload any. Will be very interested to see how this Brno shoots for group as well as how well the 12 gauge barrel is regulated to the rifle barrel for slugs at 50 and 100 yards.
Also plan to shoot some clays with the ported barrels to see how they behave. The shotgun barrels are much lighter than the rifle combo and makes a nice compact 6.5LB shotgun with them on it. With the rifle/shotgun combo but no scope, it weights about 7.75 LBs. Should make a fun grouse/deer combo.