Just got in a Remington M1867 rolling block in 8x58RD. Will be sending it off to Reboring by JES to have it converted to 40-65 Winchester. Spent about 40 minutes cleaning it up. Didn't go crazy since it will be taken apart for the reboring and rechambering. I'll get into a more thorough cleaning when it comes back. I'll also be refinishing the woodwork with a hot tung oil finish. The cartridges are necked down 45-70 cases to 40 caliber. 400 grain cast lead in front of 63 grains of Black. A great hunting load.