@ Cdn303 and other Interested Parties:
Just FL size the stuff and it will be okay. I have a Finn capture SVT-40 that I got from Globe, last one they had in Canada. Thirty-nine-ninety-five plus shipping to Seldom-Come-By on Fogo Island. I was worried about the fluted chamber, got brass and dies and started in loading.
For one thing, the inside flutes are not all that deep and the brass expands only partway into them. This is by design, as the flutes are there to let gas COME BACK halfway on the casing, thus floating the case out of the chamber on a blanket of gas. Hot gas, powder crud and everything else gets into the chamber flutes and comes off on the brass, but the sizing die irons it out very nicely, although it does leave the MARKS. If these really concern you, you can polish them out with a scouring-pad or a bit of steel-wool, but the rifle will not know the difference.
Sometimes you can have fun with this. Head for the range with a batch of reloads that have been through a Tok, but you are firing them this day in a Moisin-Nagant. Somebody sees you eject a casing with flute marks halfway up the thing, they are GOING to raise an eyebrow or six. THAT's when you concoct some BS tale about Russian experiments with rifles ready for their own Charlton conversion..... or surplus Tok barrels being installed into MNs because the times were so tight. You'll think of something, I'm sure.
Just be sure to have fun!
That's what it's all about.