setback force
setback force
[′set‚bak ‚fȯrs] (mechanics)
The rearward force of inertia which is created by the forward acceleration of a projectile or missile during its launching phase; the forces are directly proportional to the acceleration and mass of the parts being accelerated.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
As the crimp develops, the pellets are forced back by normal
setback forces, and the center of the plastic wad starts to bulge.
The lower-velocity loads, on the other hand, may not deform as many pellets via
setback forces, and the gas level at the muzzle will be lower to let the shot charge escape without taking a rap on the fanny from gas-pushed wads.
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