Lyman Receiver Peep Sight Scale
Page 1 of 2 12 LastLast
Results 1 to 10 of 19
Like Tree36Likes

Thread: Lyman Receiver Peep Sight Scale



  1. #1
    Tinhorn
    Join Date
    Jul 2009
    Posts
    59
    Member #
    10849
    Thanked
    25 times

    Lyman Receiver Peep Sight Scale

    I inherited a Marlin 81-DL 22lr with a Lyman receiver peep sight, pictured here.
    3572088_receiver_sight_57.jpg

    However, the labels on my sight are in increments of 50 whereas this, and all that I have found online, are labeled in increments of 15. Is the scale on my sight feet instead of yards (50/15 is ~3)?

    As I understand the function of this peep sight, the idea is that you zero using the screw on top but you set the range using the button on the side and the scale for the range. Is that correct?

    https://www.lymanproducts.com/brands...er-peep-sights

  2. #2
    Super Moderator
    Join Date
    Dec 2012
    Location
    Opelika, Alabama
    Posts
    13,201
    Member #
    37870
    Thanked
    19333 times
    Look like this?

    Lyman 58E.jpg
    ipser and 1Merlin like this.
    Bart

    Team Old Pharts, Team Marlin Express, Team 30-30, Team 45-70, Team 60, Team Henry, Team Semi-Auto, Marlin League, Team Glenfield

    Symptoms of Marlinitis

  3. #3
    Tinhorn
    Join Date
    Jul 2009
    Posts
    59
    Member #
    10849
    Thanked
    25 times
    Yes, the scale looks like that though the rest of the sight looks like the one in the OP. Is that feet?
    1Merlin likes this.

  4. Remove Advertisements
    MarlinOwners.com
    Advertisements
     

  5. #4
    Super Moderator
    Join Date
    Dec 2012
    Location
    Opelika, Alabama
    Posts
    13,201
    Member #
    37870
    Thanked
    19333 times
    I believe it is yards... They were used on bolt action rimefire Winchesters and Marlins for the long shots...
    ipser and 1Merlin like this.
    Bart

    Team Old Pharts, Team Marlin Express, Team 30-30, Team 45-70, Team 60, Team Henry, Team Semi-Auto, Marlin League, Team Glenfield

    Symptoms of Marlinitis

  6. #5
    Tinhorn
    Join Date
    Jul 2009
    Posts
    59
    Member #
    10849
    Thanked
    25 times
    Ok, thanks! And am I correct in the OP how the range is adjusted?
    Scorpiusb and 1Merlin like this.

  7. #6
    Super Moderator
    Join Date
    Dec 2012
    Location
    Opelika, Alabama
    Posts
    13,201
    Member #
    37870
    Thanked
    19333 times
    That I know nothing about... Someone with experience with that peep sight going to have to chime in...
    1Merlin likes this.
    Bart

    Team Old Pharts, Team Marlin Express, Team 30-30, Team 45-70, Team 60, Team Henry, Team Semi-Auto, Marlin League, Team Glenfield

    Symptoms of Marlinitis

  8. #7
    Marlin Marksman
    Join Date
    Oct 2016
    Location
    Cucamonga, Ca
    Posts
    1,035
    Member #
    79145
    Thanked
    2731 times
    Quote Originally Posted by ipser View Post
    I inherited a Marlin 81-DL 22lr with a Lyman receiver peep sight, pictured here.
    3572088_receiver_sight_57.jpg

    However, the labels on my sight are in increments of 50 whereas this, and all that I have found online, are labeled in increments of 15. Is the scale on my sight feet instead of yards (50/15 is ~3)?

    As I understand the function of this peep sight, the idea is that you zero using the screw on top but you set the range using the button on the side and the scale for the range. Is that correct?

    https://www.lymanproducts.com/brands...er-peep-sights

    Good question, depends. Depends on the thread pitch, the number of clicks per revolution, and distance between the peep and front sight.

    Here is a tried a true formula that will give you MOA calculations.

    ((Vertical movement of rear sight in inches * 3600"s per 100 yards)/sight radius in inches)

    Example: If you have a 36 thread pitch, one revolution is .028". If there are 10 clicks per revolution then each click is .0028". Let's say you have a 26" sight radius. Then each click would be ((.0028*3600)/24)=.39" at 100 yards. Each full revolution is 3.9 inches at 100 yards.

    In other words, set your zero to a point on the scale and then work from there based on your knowledge of you bullet drop at yardage increments.

    Hope this helps.






    Last edited by PoopDeckPappy; 06-12-2019 at 11:29 PM.
    PDP aka: Pappy
    My Favorites: 22 Hornet and all wildcats, 28-30 Stevens, 32-20 and all wildcats, plus all hyphenated rifle cartridges
    Team: "Old Pharts" #348,
    Team Winchester #145

  9. #8
    Tinhorn
    Join Date
    Nov 2015
    Posts
    25
    Member #
    64718
    Thanked
    30 times
    To the last part of your question the button on the side is to remove the slide, or make rough adjustments only. The click knobs are for making point of impact adjustment. On a. 22 I would sight it in carefully at the range you shoot most at most. Zero the scale, then see what it reads at longer distance.

    Sent from my SM-G930R4 using Tapatalk
    Last edited by Strugl4xsc; 06-13-2019 at 08:39 AM. Reason: His scale: on your scale 50 is your normal zero.
    ipser and PoopDeckPappy like this.

  10. #9
    Tinhorn
    Join Date
    Jul 2009
    Posts
    59
    Member #
    10849
    Thanked
    25 times
    Quote Originally Posted by PoopDeckPappy View Post
    Good question, depends. Depends on the thread pitch, the number of clicks per revolution, and distance between the peep and front sight.

    Here is a tried a true formula that will give you MOA calculations.

    ((Vertical movement of rear sight in inches * 3600"s per 100 yards)/sight radius in inches)

    Example: If you have a 36 thread pitch, one revolution is .028". If there are 10 clicks per revolution then each click is .0028". Let's say you have a 26" sight radius. Then each click would be ((.0028*3600)/24)=.39" at 100 yards. Each full revolution is 3.9 inches at 100 yards.

    In other words, set your zero to a point on the scale and then work from there based on your knowledge of you bullet drop at yardage increments.

    Hope this helps.
    Yeah, this was going to be my next question since there are so many variables to bullet drop. I'll do some experimenting with it to see how close it is to the numbers as yards. Zeroing at 50 yards and testing at 100 yards should yield a predictable ratio against a ballistic chart.

    Thanks, everyone.

  11. #10
    Tinhorn
    Join Date
    Nov 2015
    Posts
    25
    Member #
    64718
    Thanked
    30 times
    That's right, I enjoy math when it is necessary to figure something out, but I enjoy shooting way more. Twenty twos are still affordable enough to shoot at the different distances, and Skip the math entirely. Keep some notes though in a place that you can reference them or you may have to shoot some more.

    Sent from my SM-G930R4 using Tapatalk
    ipser and 1Merlin like this.


Page 1 of 2 12 LastLast

Home | Forum | Active Topics | What's New | Subscribed Threads

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •