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Double check your digital caliper

Discussion in 'Reloading' started by rquintana, Sep 14, 2011.


  1. rquintana

    rquintana
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    I just started reloading and I opted for a digital caliper to check my OAL. When I first got my caliper i checked it on various things of known measurements. It was off by +/- .1 I figured the caliper was right (and it might be) and decided i was fine.

    When reloading since I am a beginner I am checking the OAL of all rounds I make. I am loading 9mm and my low tolerance is 1.4". When i was checking my all my newly made ammo, I was getting a lot of 1.099" I fiddled with my seating die, machine etc..., but it kept doing the same thing. To make an already long story short, my caliper skips from 1.099 directly to 1.415.

    This is just to let everyone know to really check your digital caliper before you use it. On mine it, it appears everything is fine over 1.415 (checked against many rulers) and below that, it is off by a wide margin. I am sending it in to get it replaced.
     

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  2. dwhite53

    dwhite53
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    I'm currently using a set of verniers.

    Looking to buy a dial set.

    I hate batteries. They're always dead when you most need them.

    All the Best,
    D. white
     

  3. njl

    njl
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    Check your numbers and make your post make sense. You're not loading 9mm to 1.4".

    I have HF digital and dial calipers and they often disagree with each other by 0.001.
     
  4. Boxerglocker

    Boxerglocker
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    Jacks #1 Fan

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    Sounds like your caliper broke a tooth.
     
  5. michael e

    michael e
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    I just went and bought a new one after spending 8 dollars on batterys and that not fixing it. Went and got one from harbor freight for 10 bucks.
     
  6. rquintana

    rquintana
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    you are right, I apologize. My low tolerance is 1.14, and my caliper goes from 1.099 to 1.1415. Sorry for that and thanks for catching it.
     
    #6 rquintana, Sep 14, 2011
    Last edited: Sep 14, 2011
  7. noylj

    noylj
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    Just got a Hornady digital. It is only good for 0.0005", but that is all I need for COL readings. I caught myself a couple of times making an error reading the gauge and decided to go digital. Don't need much for COL readings and I always have the dial if I "need" it.
     
  8. IndyGunFreak

    IndyGunFreak
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    Get dial calipers, no more batteries.... and they are almost just as fast when you know how to read them (which takes all of about 20sec to learn)
     
  9. IndyGunFreak

    IndyGunFreak
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  10. creophus

    creophus
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    I started out with digital calipers but once the batteries ran out I didn't bother to replace them. Now I just use the dial calipers from Dillon.

    I recommend them.
     
  11. jmorris

    jmorris
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    That is only the resolution they have, not the accuracy. Not that you need it for reloading but you would need a mic to get accuracy into the half/tenths range.
     
  12. jmorris

    jmorris
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    I have more dial calipers than anything else as they are fast/easy to read and have no batteries.
    The digital calipers I do have get stored without the battery in them or outside their original box. The reason most are dead when you go to use them is because you turned them on when you shut the lid and put them away.
    Most of the verniers I have were passed down to me but everyone should know how to read them as they are the most cost effective way to measure long items (like 4') to .001
     
  13. cole

    cole
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    I use digital. Never an issue. I case guage (or chamber check) and use the caliber in conjunction. I have a dial caliper as well I never use.
     
  14. GioaJack

    GioaJack
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    Conifer Jack

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    I use a certain body appendage to check OAL of my rounds... of course all I load are 30mm cannon shells. :whistling:


    Jack
     
  15. njl

    njl
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    Is that for checking OAL or cleaning out the primer pockets?
     
  16. aaronmj

    aaronmj
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    http://www1.mscdirect.com/cgi/NNSRI...re=ItemDetail-_-ResultListing-_-SearchResults

    These will never fail you, obviously the battery runs out but not that often, maybe once a year.

    If you have digital's, make SURE you don't get them wet unless they are coolant proof like the link I gave. If they aren't, they will skip and bounce around when wet. Dial calipers are all right, unless you get a very fine metal chip in the rack and it skips a tooth. Also, after extended use on the cheaper ones, they tend to not zero out when you open and close them multiple times, they bounce around +/- .010"..... from experience.
     
  17. GioaJack

    GioaJack
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    Conifer Jack

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    Aren't you supposed to be at work? :fist:


    Jack
     
  18. IndyGunFreak

    IndyGunFreak
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  19. aaronmj

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    Yeah, this is true, they are expensive but you pay for what you get. I've been working in a machine shop for 16 years now and seen A LOT of calipers be bought, I know what ones last and which don't. The cheap $20 calipers are just that. Cheap. But I guess if your only using them a few times a year or whatever, they might hold up. I use calipers 5 days a week probably anywhere from 30-100 times a day. Maybe more.
     
  20. IndyGunFreak

    IndyGunFreak
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    Trust me, I totally understand that "you get what you pay for". I rarely cheap out on anything. However, there is such a thing as "overspending". If I want to get a boat for fishing, knowing I'll only use it a few times a year, a small 3k boat will be fine, rather than spending 20k on a boat.

    I have no doubt that for someone that is using calipers for a living, those would have some use. However, for the hobbyist reloader, they are way way over priced.

    I've had my $18 Dial Calipers for about 5-6yrs. I have a pair of $20 digitals that are about the same age.
     
    #20 IndyGunFreak, Sep 21, 2011
    Last edited: Sep 21, 2011
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