I understand wanting to fire grandpa's old pistol but in terms of dollars and cents it isn't worth what a gunsmith would charge to fix it. From the late 18th through the early 20th centuries H&R along with Iver Johnson, Hopkins & Allen, Forehand & Wadsworth and others produced hundreds of tons of cheap revolvers in .22, .32 & .38 calibers. Most have been discarded because they broke down and weren't worth fixing, they were just a cheap gun not expected to last very long, the thinking was "use it while it works and when it breaks just get a new one".