Thread: Headspace
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Old December 28, 2018, 09:42 PM   #3
Colorado Redneck
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Join Date: January 6, 2008
Location: Northeast Colorado
Posts: 1,711
Headspace is one of the most critical measures in your rifle. A quick definition: the distance from the face of the locked bolt to a datum line or shoulder in the chamber that arrests the forward movement of the cartridge. The term originated when all cartridges had protruding rims, so the measure was initially taken only at the head. Now it includes other spans.
From Gun Digest
Case head is explained better by a drawing. Hopefully it is attached.
Attached Images
File Type: jpg The-Cartridge-Case-3.jpg (30.8 KB, 61 views)
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