I'd maybe be sticking to the cheapie rounds in it, wouldn't use the 1550's or 1625's or 1700's. Europeans came out with a new proof for steel rated shotguns, just because of the new, faster shotshells on the market runing at higher pressures. Baikal is likely a tough gun, but it is still a cheap break action, likely not really made for the new shotshells.
I have one I bought about 15-20 yrs ago I used steel in, I could care less if I ringed the barrel on it, it was a 50.00 gun. Twas adequate for a truck beater gun for whatever uses I found for it. I do like the little underlever on it.and how light it is to carry.