H&R The American Double Action refurb

[SteelNWalnut]

I was gifted this H&R The American double action revolver chambered in .442 Webley, it was produced somewhere between 1888 and 1897. The timing is in order and the lock up seems tight but it is missing the main spring and the trigger return V-spring was broken. I was wondering if anyone knows the model of main spring and trigger return spring from Wolff would be? Also it would be greatly appreciated if anyone could help me find or reload some black powder ammunition. My experience level is 2 years of reloading rifle and pistol ammunition as well as some black powder. This is also the second pre-1898 revolver project following a 1898 produced Iver Johnson Safety Automatic in .32 S&W short BP.