S&W .44 Frontier Dissasembly & Screw Sizes

[freedomlives]

Hi,

I got an antique S&W Frontier .44-40 double action.  I noticed from holes in primers that the hammer spring was weak, and adjusted that screw with a kind-of-fitting screwdriver I had on hand. 

I realized that I really need proper screw-drivers for any more disassembly that might be needed of the gun.  Since I live in Slovakia and am not made of money, I plan to just order the "magnatip" bits that are the right sizes for the screws on my gun.  I have no hope of buying them here since, while there are quality screw driver bits available, they are metric!  But I don't know which sizes to get...  Could anyone who has this gun or one of the similar Model 3 double actions tell me?

Also, how does one remove the cylinder to do a thorough cleaning?

Finally, does anyone have a drawing for what (I think) is called the cylinder stud?  It is the bit that pushes against the breech plate on the end of the extractor.  I made something from a generic gun screw that I screwed in and ground to length and roundness with a Dremel tool, but I have doubts as to the longevity of that solution...  If I have a drawing, I can get a machinist here to make it pretty well.

Thanks,

Andrew Ray

[St. George]

PM sent.

Vaya,

Scouts Out!