If your Mission Sub-1 XR or Ravin R500 crossbow needs new cams, strings, or cables, this step-by-step shop walk-through shows exactly how I do it—including the Mission “backout system” (no press required) and the Ravin press process (with finger blocks) for the R500. We diagnose a catastrophic cam failure on the Sub-1 XR, replace cams, install cables and string on the correct tracks, re-tension limb bolts evenly, and then re-string a Ravin R500—routing cables through the bridge guides, setting the S-curve string path, and test-firing safely. Here is a link to the Ravin store so you can check out and order new strings or the press we used here. Unfortunately to purchase any Mission gear you will have to visit a Mathews/Mission dealer. note: If you click on this link and make a purchase we may receive a small commision. This helps us out and we really appreciate that. Chapters 0:00 Intro 0:22 Mission Sub-1 XR: damage inspection 1:59 Backing out limb bolts (backout system) 4:57 Cam removal & limb inspection 6:00 New cam orientation & top-hat shims 10:37 Cable routing (C1/C2) 13:27 String routing & track check (string vs. cable) 15:52 Even re-tension & final checks 16:14 Ravin R500 setup (scope off, press on) 18:25 Press alignment & compression 19:52 Cable swap (through bridge guides) 21:34 String install (S-curve path) 23:36 Re-tension, track confirmations & test fire 26:05 Wrap-up & what’s next Tools & notes Mission Sub-1 XR uses a 3/8" limb-bolt Allen—bigger than most kits Do not use the backout method on other bows/crossbows Ravin R500 requires the Ravin press (model-specific fingers) If you like shop videos like this (and the AcuSlide Max / TenPoint teardown from last week), hit 👍 and subscribe. We just crossed 5,000 subs—thank you, y’all! Drop questions below or tell me which bow you want to see next. Hashtags #MissionSub1XR #RavinR500 #CrossbowRepair #StringReplacement #CamsAndCables #ArcheryTech #TrinityWild