Reloading firearm cartridges: Part 5

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2
Part 3
Part 4

This report covers:

  • Reloading rimfire cartridges
  • Top speed for lead bullets
  • Strip out?
  • Case preparation
  • CUP?
  • Transducers
  • So what?
  • Brass flow
  • 5.56 mm brass
  • Trimming cases
  • Summary

There is a lot of interest in this series. I’m stretching it out over time because it deals with firearms, but it’s useful for all of us to understand in order to better understand airguns.

Reloading rimfire cartridges

Reader Yogi asked about reloading rimfire cartridges. And he was justified in doing so, for the first firearm cartridges in any caliber were either rimfire or needlefire — a type of ignition I don’t want to get into in this series. Centerfire cartridges — the kind we reload today — came a little later in the world of self-contained cartridges.

Actually, Yogi, you not only can reload rimfire cartridges — there are actual kits to help you do it! Since I had no idea any of this was possible, I’m not going to pretend I know what I’m talking about. Here is an excellent article on reloading rimfire cartridges. And here is the place where the supplies and tools are sold. read more