Digital Vernier

I say digital, because they are ubiquitous and cheap. If you don't already have any, buy two and keep one spare. You must have this to

• ensure that your case is within the allowable trim length

• ensure your loaded rounds are to within the maximum permissable AOL for the cartridge and bullet you are reloading

A manual vernier is just as accurate, if you already have one use it.

Basic Equipment - Rifle Reloading   The Press   Priming   Trimming   Dies   Case Lube   Powder Scale   Case Tumbler   Bullet Puller   Case Tray   Vernier   Powder Dispenser   Powder Trickler   Conclusion