Caliper opinions

[maudib]

Case gauge time.

Spent a few minutes re-measuring a sample of the 9mm I made last week with both calipers. There was a consistent .005 difference in digital vs the dial, with the dial measuring shorter than the digital. The dial was bought from Craigslist, I asked when it was last calibrated. The short answer I received was, "a month or so ago by the shop's weights and measures guy". Good news is that the there was exact consistency in the readings, which I went through and did twice for 5 different cartridges.

Bad news is that I don't currently own a gauge block so that is next on the list to pick up as soon as possible. If anyone has a reason that I should look for something more that what I found at the Home Depot site, please let me know.

https://www.homedepot.com/p/WEN-3-in...0423/308391064

[RustE]

...
If anyone has a reason that I should look for something more that what I found at the Home Depot site, please let me know.

https://www.homedepot.com/p/WEN-3-in...0423/308391064

My, um, critique of this idea: there is no statement about the accuracy of the block. Maybe this information is somewhere, just wasn’t obvious to me on the Home Depot website or the WEN website. You’re looking for something that is ground to less than 0.0005 inch and preferably closer to 0.0002 inch or better.

If you’re into woodworking, then the Veritas set-up blocks with 1-2-3 block sold by Lee Valley are worth a look. Although, sadly, out of stock at the time of this post.