What is the best book?

[springfield art]

What is your best recommendation for a book that has detailed instructions and photographs for disassembling, reassembling, and working on flintlock locks?
I've got a Russ Hamm lock that is really hard on trigger pull. I want to take it down and clean each part (fearing old lube that is basically gluing the lock) and I may need to reduce the main spring a bit.
I appreciate the input.

Auto supply stores sell a spray that will dissolve gunk; it's best used outdoors, can't think of the name off-hand, but it's formulated to dissolve all kinds of gunky gummy stuff. Wear a mask!

 

[Grenadier1758]

@Daryl Crawford, you say it is hard to release the sear when the lock is removed from the stock. Have you checked for binding in the bridle over the tumbler? All too often the screws holding the bridle in place can be overtightened and bind on the tumbler. Is the screw the sear rotates on too tight and binding the sear movement? Look at the full cock notch. Does the sear nose move the tumbler as the sear is lifted for release?

A lock tune up is in order.

 

[Daryl Crawford]

I'll look into the trigger per @waksupi guidance.
I'll look closer at the lock @Grenadier1758 when I get home tonight.
Cabin Creek is about 1.5 hours from me so in the long run I'm sure I can give them a call.

 

[waksupi]

Keep in mind, even the best locks take some effort to set off when out of the gun.