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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A long crane latch pin will prevent the front latch from securing the front of the cylinder assembly. Dec 20, A good compromise is a 12 lb mainspring. Reassembly of the obok guard assembly: Dress the transfer bar with a grit sandpaper to smooth it up. I tell you what he is a real gentleman and very iblk as you can tell from his article. Wed Dec 12, 1: There are several Ruger and aftermarket plug-in front sights available in different colors or styles.

Please remember to send me your email address so I can send the attachments. The straight edge of the strut goes up. Do not try to drill any deeper, just get the hole smooth. Some years ago I got a pdf of Iowegans Ibok, nothing like it anywhere else I’m pretty sure. The cam surface at the top end of the trigger is the area used to cam back the hammer in DA and mates with the back edge of the hammer dog.

Hold the crane vertical with the ejector rod down.

I have yet to find, and now have given up the search, for such a detailed informative resource for this particular hand gun. The machined end of the cam is the SA sear.

Replace the hammer dog spring and plunger. Do you know if this is by design? Harbec55Nov 24, By amprecon Started December Could you publish the same for the SP in. GPs come from rhger factory optimized for jacketed bullets. Submit a new link. Pull the blade to the left with your thumbnail until the right side of the blade drops in.

Pull the trigger all the way back and hold it there. Bluing only affects the surface of the metal so it will wear off, especially from using holsters.

I got rid of the existing stock at local gun shows. With the hammer fully forward, insert the hammer strut assembly in the grip frame. If side play is excessive, a new cylinder latch part 6 may be needed.

Sorry for the Q, but what is an IBOK?

Create a free website or blog at WordPress. Once the trigger guard assembly is snapped in, make sure it is fully latched and the surfaces of the frame mate with the surfaces of the trigger guard assembly. These were copyrighted, printed in hardcopy, and sold on the forum non profit to again encourage forum membership. Minor urger spots are not an issue. The Great Republic of Texas Posts: Remove the grip screw.

The bore diameter is typically very uniform at. You will need an automotive type gap gauge set looks like a pocket knife with multiple blades of different thickness, AKA feeler gauge. You may be able to use either one, however the 10 lb spring will have a more positive trigger reset. You will lose a token amount of velocity, typically fps for a magnum load.

Sorry for the Q, but what is an IBOK? – Ruger Forum

Page 1 of 2. If you examine the firing pin protrusion with the trigger pulled and the guger pushing the transfer bar forward, you will get a false indication of protrusion. Use your left thumb to push the trigger guard latch rugerr part The sight plunger part 38 and spring part 39 can be removed if necessary by pushing the plunger forward with a stiff wire from inside the sight channel. Hammer reaches the cocking point and is held to the rear by the SA sear.

Use a hollow shaft flat tip screwdriver and unscrew left hand thread the ejector retainer part Insert the trigger ibo, in the frame. Pull the crane part 51 out of the cylinder.

Pawl moves up and begins to rotate the cylinder CCW. Avoid using a Dremel or any power tools, except with soft polishing wheels and polishing compound. Insert the trigger guard latch part 43 with the flat surface up. The sear is designed to hold the hammer cocked in the SA mode. I changed out my springs a while back with a set from Wolff Springs I believe. This entry was posted on August 24, rugre 5: Their revolvers are due for the same type of improvement.

The strange thing about this is that for the last 40 years Ruger could have improved the trigger action on their revolvers, but they have not done so.

Once fuger cylinder latch is on the shaft, check for free spring-loaded movement.