A Ruger SP is likely in my future. I learned of a series of books called IBOK’s ( Iowegan’s Books of Knowledge). They used to be available for. Introduction. The Ruger SP is a great revolver, but the factory double action trigger pull can be heavy and a bit rough. It can be improved with a “trigger job”. In the library they have DIY tutorials for Ruger revolvers called the “Iowegian book of Knowledge” (IBOK). They’re pretty informational and have.

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Pull the center pin rod part 2 and center pin spring part 3 out from the front and the ejector part 58 out from the rear. I started this blog to help fellow shooters with good accurate unbiased information and that makes it well worth writing when someone ryger yourself finds it useful.

Checker4TixJan 4, Insert the trigger guard latch part 43 with the flat surface up.

Iboi Dec 03, 6: With the gun fully assembled, measure the gap between one side of the hammer and the frame. Removing the firing pin is not recommended because it will damage the finish.

Flood the inside of the cylinder hole with a good cleaner and blow it out with compressed air. If endshake is too tight, the gun may bind up when you shoot it. When pushed in all the way, the firing pin should protrude.


Now you know one of the biggest reasons I started this blog—the satisfaction it gives me to be able to help fellow shooters. Parts function, disassembly, tuning, and reassembly.

Ruger SP Trigger Job Guide

Watch the cylinder latch from the right side as you begin cocking the hammer. You need all the energy you can get to prevent light primer hits.

Hold the hammer dog in position and install the hammer dog pivot pin. The grip inserts for the compact grips are the same size as SP inserts.

IBOK for SP? : ruger

Iowagen book of knoledge. The info for the SP is pretty much the same. Harbec55Dec 18, Timing is the series of events that happen from the moment you begin to squeeze the trigger in DA or begin to cock the hammer in SA and ends when the trigger finally resets for the next shot.

Transfer bar is lifted into position. Footer title This content can be configured within your theme settings in your ACP. A worn or out of spec trigger plunger part 48 or cylinder latch part 6 will cause late initial timing. He does make a little money on them if a person is inclined to help him out for all the trouble and time it took to write these. I’m really happy with the way the trigger is out of the box though, so I’m not sure I actually will mess with it any time soon.


Jan 2, This is a link contained in the above thread, but it is one to study closely if you want to go all the way into the Ruger.

The exceptions are the springs where stainless is inferior. Slide the spring in place then use the kitchen fork to compress the spring.

The gun is already better than I am, but with use and this information I hope it helps me become even better. Refer to the schematic when part numbers are referenced.

Sorry for the Q, but what is an IBOK?

Remove the pawl spring and plunger. I removed the pin but all replacement sights found are not drilled for a pin.

Remove the grip screw. I am not responsible if you break something or injure someone. All rounds fire with no failures both SA and DA. Have about rounds and works good. Use of this site constitutes acceptance of our User Agreement and Privacy Policy.