I have a Falling Block Works action, it is the small one. It has a rimmed extractor. It would work well for a .357 Maximum cartridge. I would consider parting with this little jewel although I don't really care to let it go, but I'm not getting any younger and have too many unfinished projects.
I have owned a 357 Maximum rifle and it was a great little rifle, I considered it the ideal walk about rifle. You may have not heard of the Falling Block Works Actions ,but they were a great falling block actiion. The problem on my end is how in the world do you ship a firearm or an action to Canada?
I just read you post again and saw your mention of DS Cole actions and Rodney Storrie. Rodney is a good friend of mine and I just happen to have two of his DS Cole action kits that are in the process of being built if you are interested. I have a Deely and Edge action that is practically completed but it is a big action.