barrel life

barrel life

[′bar·əl ‚līf]
(ordnance)
As applied to small arms and automatic weapons, the number of rounds which may be fired through a barrel at a particular firing schedule before the barrel becomes unserviceable; varies with the firing schedule.
References in periodicals archive ?
The new Weatherby's barrels are chrome-lined, a feature designed to improve barrel life and pattern consistency.
Since that means putting a new barrel on the rifle, we might as well get one that is hammer-forged so that we benefit from longer barrel life.
An operator with experience may be able to estimate remaining barrel life by closely examining the chamber throat, but for most of us a scope is most useful for evaluating our barrel cleaning habits (or lack thereof).
As a general industry-wide rule of thumb, it is believed that typical barrel life is, on average, two to three times that of the screw life (with compatible wear resistant materials).
The result of all this is improved cooling and thus a longer barrel life.
In addition to the upper receiver requirements listed above, the following information must be provided with any response to this RFR: documentation or verification that upper receiver components currently meet or exceed Mil-Spec requirements, and an estimate of the barrel life (in rounds) with normal use, by the manufacturer.
Longer screw and barrel life reportedly result from an unexpected benefit of the new screw assembly.
The place to start a discussion of PTH and laminate problems is with a review of the standard through via, including barrel life as a function of temperature.
A new barrel erosion indicator gauge, NSN 1005-01-535-5576, now makes it possible to safely extend barrel life up to 50,000 rounds per barrel or 300,000 rounds per set of six barrels.
The intended barrel life is 35,000 to 40,000 rounds--twice that of M16-family weapons.
others, experience considerably shorter barrel life than do the calibers