1022 assembly

parts check

  • before starting the build make sure you have everything!

barrel to receiver

  • assumptions:
    • barrel is "drop-in" i.e. not requiring fitting with adding or subtracting material from barrel or receiver
  • parts/tools involved:
    • barrel
    • v-block aka clamp
    • v-block screws aka clamp screws
    • receiver
    • tool to tightening v-block screws into receiver
  • pre-warning / caution:
    • do not overtighten v-block screws
      • typically screws are steel & receiver softer alumninum, thus overtightening could strip/damage receiver

part 1

  • steps:
    • carefully/slowly insert barrel into receiver w gentle twisting if resistance
    • rest v-block against barrel/receiver
    • insert 2 v-block screws partly into v-block and partially turn the screws but not to resistance yet with alternating sides
    • stop here, proceed to bolt assembly/spring/handle insertion and come back here to fully align/tighten vblock/barrel once bolt inserted

part 2

aligning barrel/receiver

  • see Stocky's image
  • ensure barrel is fully seated
  • v-block should be flush: check alignment bottom surface and both sides
  • if sights attached to barrel ensure these appear aligned as if you were sighting in
  • extractor on bolt assembly - if using this assembly order come back to this step after bolt inserted (i.e. leave v-block screws not fully tightened)
    • should not contact extractor recess (groove) in barrel (see huntdaily image)
    • slowly release bolt forward checking alignment (i.e. don't slam misaligned extractor onto barrel)
    • indexing method (via rimfirecentral):
      • start with bolt into estimated center of groove
      • very gently rotate barrel until resistance (extractor contacting wall of groove)
      • make index mark with pencil on barrel
      • rotate the other way
      • make another barrel index mark
      • now rotate the barrel to approximate center in between marks to better estimate center of extractor groove
    • Brownells re extractor
  • adjust with gentle twisting motion
  • if tight fit heating barrel may help with initial insertion
  • after alignment checked further tighten v-block screws with alternating sides

how tight should v-block screws be?

  • I cannot find explicit authoritative information on torque or best tools to use to measure it, partly I think because may be dependent on specific parts used and involved dimensions/tolerances
  • I hand tightened approximately a quarter turn once more significant resistance encountered (note subject terminology due to lack of measuring device), not as much torque as seemingly applied in Brownells video
  • if you have authoritative references on this topic these would be much appreciated
  • via rimfirecentral forums reportedly from ruger: 10-20 in lbs
  • Brownells:
    • "we find 45 in lbs is adequate"
    • "some manufacturers recommend 65 in lbs"
    • in their video they do not measure
  • iraqveteran8888:
    • hand tight + quarter turn, up to ~20 in lbs
  • Stocky's:
    • "28 in lbs is factory spec" (subjectively "snug")
  • forums: all over the map - e.g.:
    • https://rugerforum.net/ruger-10-22-rimfire/124667-torquing-10-22-screws.html
    • https://nygunforum.com/threads/10-22-torque-amounts.12141/
  • note that some torque measuring tools that are used for takedown screw torque settings cannot reach the v-block screw heads (another tool is necessary)
  • see:

bolt assembly with spring and bolt lever

  • start with barreled receiver (w loose vblock screws) upside-down
  • insert charging handle with spring
  • hardest part:
    • hold spring/handle back
    • drop bolt down so spring catches it - press lightly down and forward (sounds easy, was definitively not the first time I did this)
  • see Brownells

trigger group insertion

  • obviously make any planned modifications to trigger group now before insertion (e.g. auto bolt release)
  • drop trigger assembly into receiver
  • insert cross receiver pins
  • see Brownells

function test / headspace check

  • check fit with dummy ammo
    • "go-gauge": ~normal-size dummy ammo. ensure bolt closes fully on breach face
    • "no-go gauge": too-large dummy ammo. ensure bolt does not fully close
  • I did not do this
  • see Brownells

insertion of barreled action into stock

  • barreled action = barrel + receiver + bolt assembly + trigger assembly
  • note:
    • if you have add-on options for stock, sometimes these need adding before insertion of barreled action (e.g. magpul x-22 side-rail mounts)
  • ensure safety is in mid position, halfway between safe & fire
    • needed in order to clear rim of most stocks
  • lower the barreled action into the stock
  • ensure any resistance is not the safety
  • sometimes some gentle wiggling is necessary
  • see Brownells

insert takedown screw

  • takedown screw holds stock against barreled action
  • most are hex-head now
  • torque wrench is of utility here
  • some shooters report significant group differences with torque honing, others just hand-fit to snug
  • how tight should takedown screw be?
    • this may vary depending on exact parts/dimensions used
    • via rimfirecentral forums reportedly from ruger: 15-20 in lbs ()
    • Stocky's: "proper torque value is about 18-25 in lbs" - recommend accuracy testing at 1-2 in lb intervals. never go above 30 in lbs
    • Kidd: recommend 10 in lbs
    • I started with 15 in lbs
    • too tight and might damage receiver
    • recommend starting on low end and shooting groups with torque-wrench adjustments at range
  • also see:

test action for proper operation

  • action/bolt back/forward
  • safety movement
  • trigger release/reset