The Grandmaster's Guide to the GP100

This is everything I know, and most of what I think I know, about tuning up your GP100, Super Redhawk, or SP101 for competition or general use. See my pinned comment for errata.

If you want to support the labor this video took to produce, consider buying some moon clip carriers, dry fire targets, or Ruger revolver tools/parts off of me at https://generico.ltd, or buy me a beer after a match someday.

There are very few sources that cover working on the modern Ruger revolvers, and no sources (to my knowledge) that go into this kind of depth on topics like fitting replacement parts, adjusting timing, and diagnosing and correcting common trigger flaws. I'm not a formally-trained gunsmith, but by following this process, I have all of my guns running reliably with double action trigger pulls below 7lb. I believe that you can attain the same results.

Three years of chasing the best trigger pull I can manage, 100 gigabytes of raw video, and dozens of hours of editing went into crafting this video. If you find it helpful, share it! Rugers are totally capable of winning matches, and the more legitimate options there are for revolver competition, the better off we are.

Materials referenced in the video:
• Iowegan's Book of Knowledge (the IBOK): https://manywords.press/other-stuff/g...
• My website, where you can find competition moon clip carriers, tools, and parts: https://generico.ltd
• Trigger shims: http://triggershims.com

I'm pretty sure I said I'd link to more things, but I didn't write them down. Remind me in the comments if you come across a missing link.

00:00 Intro
02:01 Tools
04:38 Reference Materials
05:50 Parts and Service
07:55 Initial Trigger Measurement
09:05 Disassembly
10:41 Trigger Unit Disassembly
13:50 Cylinder Disassembly
15:41 Where Does This Tiny Spring Go?
16:18 Trigger Assembly Parts Interaction
19:37 Trigger and Hammer Interaction
21:35 Trigger Job Intro
22:45 Measuring Hammer Fall Weight
24:38 Polishing Technique
25:22 Polishing: Transfer Bar
28:56 Polishing: Cylinder Latch
32:10 Polishing: Pawl
35:23 Trigger Plunger Timing Test
36:42 Polishing: Trigger Plunger
38:46 Polishing: Trigger
40:24 Trigger Guard Tasks
42:45 Trigger Guard Reassembly
46:13 Hammer Profile
47:37 Polishing: Hammer
49:05 Polishing: Hammer Dog
51:00 Polishing: Hammer Pivot
52:15 Polishing: Mainspring Strut
54:55 Mainspring Strut Reassembly
56:38 Cylinder Cleaning and Reassembly
01:01:31 Final Reassembly
01:03:16 Hammer and Trigger Return Springs
01:04:35 Shims and What They Do
01:11:24 The End of the Basic Trigger Job
01:11:53 Hammer Modifications
01:12:04 Hammer Bobbing/Lightening
01:13:26 Hammer Step Reduction
01:17:17 Hammer Dog Fitting
01:24:44 Light Tune Final Check-in
01:25:43 Trigger Return Tuning
01:26:57 How Reset Works
01:28:34 Reset Test Techniques
01:30:56 Installing Trigger Shims
01:32:16 Trigger Plunger Fitting
01:34:38 Firing Pin Spring
01:35:33 Firing Pin Bushing Removal
01:36:55 Firing Pin Parts
01:38:47 Firing Pin Reassembly
01:41:14 Firing Pin Wrench Maintenance
01:42:53 Timing: Introduction
01:44:02 Timing: Pawl Fitting
01:46:29 Timing: Adjusting Latch Pulldown
01:48:31 Timing: Effects of Changing Dimensions
01:51:45 Representative Hammer Fall Weights
01:52:50 .40 and 10mm Moon Clips
01:53:32 OEM Grip Screw Interference
01:54:57 Frame Size Parts Interchangeability
01:55:27 Transfer Bar Styles
01:56:46 Cylinder Release Replacement
01:59:46 Cylinder Latch Pulldown Wall/Hitch
02:01:43 Lubrication
02:03:27 Supporting Me