Calipers. Why you need calipers and how to use calipers

Published on December 29, 2020
Duration: 8:09

This guide explains the necessity of calipers for reloading and precise measurements. It details the types of calipers (dial vs. digital), recommended sizes (4-6 inches), and demonstrates their use for measuring outside diameter, inside diameter, depth, and specialized measurements using a lip. The video emphasizes that calipers are accurate enough for most reloading tasks, measuring down to the thousandth of an inch.

Quick Summary

Calipers are crucial for reloading as they allow precise measurement of critical dimensions like overall cartridge length, ensuring ammunition meets recipe specifications for accuracy and safety. Digital calipers offer easy-to-read displays and unit conversions, while a 4-6 inch size is generally recommended for reloading tasks.

Chapters

  1. 00:00Introduction to Calipers
  2. 01:00Why You Need Calipers for Reloading
  3. 01:30Dial vs. Digital Calipers
  4. 02:00Choosing the Right Size Caliper
  5. 02:30Calipers vs. Micrometers
  6. 03:00Recommended Caliper Brands
  7. 04:00How to Use Digital Calipers
  8. 05:00Measuring Outside Diameter
  9. 05:30Measuring Inside Diameter
  10. 06:00Measuring Depth
  11. 06:30Advanced Measurement Technique
  12. 08:00Conclusion and Call to Action

Frequently Asked Questions

Why are calipers essential for reloading ammunition?

Calipers are essential for reloading because most reloading recipes specify precise measurements for components like overall cartridge length. Without calipers, it's impossible to ensure your reloaded ammunition meets these critical specifications, which affects accuracy, function, and safety.

What is the difference between dial and digital calipers?

Dial calipers are purely mechanical and do not require batteries, offering a classic, reliable measurement. Digital calipers, like the ones demonstrated, feature an electronic display for easy reading and often include unit conversion (inches/millimeters) and zeroing functions, though they require batteries.

What size calipers are best for reloading?

For most reloading tasks, a 4-inch caliper is sufficient. However, a 6-inch caliper is often recommended as it's a standardized size, typically offers better pricing, and is still manageable. It's generally advised not to go above 6 inches for reloading to minimize the risk of damage.

Do I need a micrometer for reloading if I have calipers?

No, for standard reloading activities, a good set of calipers is more than accurate enough. Calipers can measure down to the thousandth of an inch, which is sufficient for ensuring cartridges meet specified dimensions like overall length. Micrometers are typically reserved for more specialized, extremely precise measurements.

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