Tested 13 Scopes

Discussion in 'Scopes, Optics, LRFs, Spotters, BoreScopes' started by Jet, Jan 11, 2020.

  1. Jet

    Jet Gold $$ Contributor

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    Tested 13 scopes with @newbieshooter and results are posted below. We both used similar setups. Bench guns chambered in 6BRAI with Field and Cave's scope checker and frozen scopes mounted on them. Scopes were tested for reticle movement after each shot and to see if reticle moved when optical power was increased/decreased. Test targets were at 100yds. Stated measurements are approximate based on the .250" grid paper used as a target.

    Testing scopes has become part of my off season ritual. We all put in a lot of effort in this quest for precision and cannot afford to put blind trust into any of our equipment or components. Testing lets me know what to trust, what to get repaired and what to put on the shelf. Results are our findings and are not meant to promote or disparage any manufacturer.

    stock.jpg

    Results:
    Golden Eagle #1: No reticle shift when firing. Reticle moved .125" right when magnification reduced from 50 to 30. Reticle moved back to original POA when magnification returned to 50

    Golden Eagle #2: Reticle shifted right .150" on first shot then solid. No movement when magnification changed. This is the scope in the above picture. Mount/rings were provided by the scope's owner. When tested in them, this scope moved to the right a lot even when the scope was snugged up. Rings were changed to BAT rings and then retested.

    Golden Eagle #3: Solid. No reticle movement observed

    March 8-80 #1: Solid. No reticle movement observed

    March 8-80 #2: Solid. No reticle movement observed

    NF Comp Gen 1: Solid. No reticle movement observed. As a side note, I've tested 4-5 of these NF Comp Gen 1s over the past few years and they have all been solid

    NF Comp Gen 2 #1: Reticle shifted left .100" on first shot then solid. No movement when magnification changed. This scope has been "repaired" by NF 2 years ago when it moved a lot. Has been tested twice since returned and it behaves much better now

    NF Comp Gen 2 #2: Solid. No reticle movement observed. This scope has been "repaired" by NF 2 years ago when it moved a lot. Has been tested twice since returned and has been solid since

    NF Comp Gen 2 #3: Solid. No reticle movement observed. This scope has never been returned to NF for repair

    NF Comp Gen 2 #4 (Frozen): Solid. A couple years ago this scope had a lot of reticle movement, sent back to NF, got the standard answer many of you have heard, got it back and it still moved. Had a friend modify it so it can be frozen/unfrozen using a screw pushing up on the erector. It is solid with no movement when frozen

    NF 12-42 BR: Solid. No reticle movement observed

    Leupold Comp 45X #1: Solid. No reticle movement observed

    Leupold Comp 45X #2: Reticle moved up and left a total of .200" on first 5 shots then stopped moving. Will be going to Leupold for repair

    Good Shooting

    Rich
     
    Last edited: Jan 11, 2020
  2. Raythemanroe

    Raythemanroe Bullet Whisperer Silver $$ Contributor

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    All good, no trouble scopes?


    RAY
     
  3. Field & Cave

    Field & Cave Site $$ Sponsor

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    Regarding GE#2... that owner owes you a beer! We call them scope checkers, but they check the entire optic/ mount system. You saved that person a lot of time/ $/ frustration. Thanks for posting!!!
     
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  4. rhovee

    rhovee

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    Sad I missed this. Jeff mentioned he might grab your scope and we can do some testing at Kenmore next week
     
  5. group therapy

    group therapy Gold $$ Contributor

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    thanks for posting!!! :)
     
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  6. Jet

    Jet Gold $$ Contributor

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    Ray

    I think I explain there are scopes that are solid and some that moved. It is up to the owner of the scopes to determine if they are good or not. The two Leupolds tested are mine. As stated in the write up one will be going in for repair since it moved through 5 shots. if scopes are "solid" I trust them. if there is movement at all they go on back up rifles, go in the range box as a back up scope in case one craps out at a match or goes on the shelf.

    Hope this helps.
     
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  7. Jet

    Jet Gold $$ Contributor

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    Jeff has one of the frozen scopes. Said he would get with you to test yours.
     
  8. rhovee

    rhovee

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    I am really interested in it and to see how my scopes do. A couple of the new NX8 4-32’s
     
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  9. SPJ

    SPJ Whoops !! Gold $$ Contributor

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    I can send a couple of scopes if ya need some practice.
    J
     
  10. pat fulghum

    pat fulghum ( ͡° ͜ʖ ͡°) Gold $$ Contributor

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    Jeff/Rich

    I know that a BRA has a lot more recoil than a straight BR. :)

    How do you think things would have changed with a 300 WSM OR 284 ?

    I do encourage every one to check scopes/mounts yearly...something useful when fire forming brass
     
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  11. Jet

    Jet Gold $$ Contributor

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    Pat
    I was fire forming brass so it was BR velocities. I don’t think a 284 or one of the short mags would cause the scopes to move any more. It could but I don’t think so.
    First time I did these tests I used my rail gun. The top that the straight Dasher barrel was mounted in weighed about 45-50lbs. I experienced more movement during that test than any other test after.
    When I do this next time I’ll use 284 barrel (if I can remember)
     
  12. rhovee

    rhovee

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    I’ll bring some of my 338’s! Heavy recoil is what I am really concerned about.
     
  13. muleman69

    muleman69 USMC -1st marine Div. RVN Gold $$ Contributor

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    Great test,I would like to learn more about reticles moving. Do the reticles move in most lower end scopes? Could this be part of the reason other than cold barrel /clean barrel the first shot or so in group is off a bit?
     
  14. Jet

    Jet Gold $$ Contributor

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    High cost does not always equal better performance. I’ve tested a few Weaver 36X and they have all been solid. Those are about the cheapest high magnification scopes you can buy.

    Reticle movement is slight but makes a difference at distance.

    I attribute POI difference on first to oil/solvent left in the barrel
     
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  15. std7mag

    std7mag

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    Interesting test, thank you for posting!

    Although i don't have the budget for almost all the scopes listed.

    If your willing, i'm willing to send for testing the Sightron STAC 4-20X50 (i know, not an SIII), and hopefully i'll have a US Optics TS12-X next winter.
     
  16. SPJ

    SPJ Whoops !! Gold $$ Contributor

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    Rich
    You mentioned scope #2 mount/rings didn’t want to cooperate, was the rail to mount fit the culprit or the scope moving in the rings?
    Jim
     
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  17. Jet

    Jet Gold $$ Contributor

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    20 power is likely to low a power to be able to see any difference
     
  18. Jet

    Jet Gold $$ Contributor

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    Jim

    Rings were very tight. And there was no visible movement. I cannot say if it was the internal base or the rings. Only thing I know is it is flawed so it was removed
     
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  19. std7mag

    std7mag

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    Bummer!

    I use the Sightron for my 600 yards F-Open matches.
     
  20. SPJ

    SPJ Whoops !! Gold $$ Contributor

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    I’ve noticed movement in the base to rail connection on two different sets of mounts until torque was applied while another fit well from hand snug to final torque setting.

    I called no joy / confidence in those first two and moved on. I may order some Bat Machine.

    Thanks for taking your time and resources to test and post your results.
    J
     
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