Got it home and took it apart. No crud, no anything at all inside and nearly no wear. The timing is such that the bolt does not rise until the cutouts appear; there's no drag mark around the cylinder which is a good thing! I see that the cylinder is given a pretty good initial shove, though, and can spin past the bolt before it catches the notch. There's a slight drag to the bolt's movement but I don't want to change its dimensions as that would probably affect lockup. The bolt does seem to have weak pressure behind it, way less than I've seen in Colts, at least, and a heavier pressure might get it in place just that little bit quicker to catch the notch each time.
I've got a 1981 Guns and Ammo special by Bob Milek that shows how to take these things apart, and it's pretty clear. Worked for me, at least! He described how to lighten the SA trigger pull a little by cutting a turn off of the trigger return spring, but I think I'll try to find a replacement spring before messing with this one if I think it needs lightening.
This gun has got a longer cylinder than my 657, so the 265gr LFN should work just fine as it fits the Smith already. Heavy gun, even though it's just a standard Vent 6". Would like to see how a VH8 changes the balance, does anyone know if it's okay to install a stainless barrel on a blued gun?
Also, I got an RCBS 210gr Keith type mould from the same shop that sold me the gun. Looks to be a flat base bullet and it's got a rather small lube groove. How does that mould rate among Keith styles for the .41?
kgb