Nice .22 PA24.
I used Pilkington classic American rust blue. 7 or 8 times. I flame blued the screws. I should polish the bolt and carrier. This was more work than a double barrel.
I wish I had a before picture. The action would not cycle due to the innards being frozen by rust. I must have filed off a few ounces of steel in removing the worst of the rust pits. It is still a heavy beast. The bore was pretty good compared to the outside. It came with a cutts compensator which I may reinstall, or maybe I will jug choke it.
I think the design is a little dangerous by modern standards
