primer seat

primer seat

[′prīm·ər ‚sēt]
(ordnance)
The chamber, in the breech mechanism of a gun that uses separate-loading ammunition, into which the primer is set.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The inspiring and smartly turned out parade mark the culmination of strenuous training of respective batches conducted at the Naval and Maritime Academy (NMA), the primer seat of learning of the Sri Lanka Navy.
Many reloaders prefer to hand seat their primers, believing that the ability to feel each primer seat produces more consistent and accurate loads.
I listen for the sound of the primer, feel the primer seat, watch the powder measure move and look at the finished round as it falls into the bin.
This, however, makes feeling the primer seat in the pocket difficult.
Slide a cartridge case into the spring loaded Universal Shell Holder, squeeze the handle and you'll feel the primer seat properly into place.
The primer seated deeper (right) preloads the pellet (note its flattened face).
Initially, these improved rounds were inside primed; however, case designs evolved until the more powerful centerfire cartridges used a primer seated into an external pocket formed in the case head.
With a load consisting of four, 50-grain pellets of Hodgdon Triple Seven, topped off with a 250-grain Premier AccuTip sabot round and touched off by a Remington 9-1/2 magnum primer seated in a short, brass case, the Model 700 Ultimate Muzzleloader is being touted as a 300-yard rifle.
At the front of the bolt, a small, cup shaped primer holder accepts a regular 209 shotshell primer seated into the rear of the breech plug when the bolt is closed.