Free guide · Cap Coast Gunsmithing

Headspace, finally explained.

The most misunderstood measurement in your rifle, in plain English. The one even keen shooters quietly get wrong.

  • What headspace actually is, without the jargon
  • How it's checked: Go, No-Go and Field, made simple
  • Why it matters for safety, accuracy and brass life
  • Two old gunsmith tricks for when you haven't got gauges
  • The warning signs to catch it early

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Why this one

Everyone talks about it. Almost nobody can explain it.

Headspace gets mentioned in every "is my rifle safe" conversation and quoted in every forum, yet ask ten shooters what it actually is and you'll get ten different answers, most of them a bit wrong. It's invisible, measured in thousandths of an inch, and behaves differently on different cartridges. No wonder it gets muddled. This guide clears it up in one honest read, written by a working gunsmith, not a comment section. Understand it once and you'll know more about it than most people at your club.

Who it's for

If any of these are you, it'll land.

The curious shooter who's nodded along to "headspace" for years and would quietly like to actually get it.
The used-rifle buyer who wants to know what to check before trusting an unknown action.
The reloader chasing brass life and wondering why cases stretch or split.
The new long-range shooter building a real foundation instead of forum folklore.

There's a lot more where this came from.

Headspace is one piece of the bigger picture. First Round Effect is the full CCG Long Range Programme, and the CCG-LR app is free to download.

See the course More free guides

Safety first, data always, ego never.

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