gun-barrel drill
21Gain twist — Twist Twist, n. 1. The act of twisting; a contortion; a flexure; a convolution; a bending. [1913 Webster] Not the least turn or twist in the fibers of any one animal which does not render them more proper for that particular animal s way of life… …
22Gaining twist — Twist Twist, n. 1. The act of twisting; a contortion; a flexure; a convolution; a bending. [1913 Webster] Not the least turn or twist in the fibers of any one animal which does not render them more proper for that particular animal s way of life… …
23Twist — Twist, n. 1. The act of twisting; a contortion; a flexure; a convolution; a bending. [1913 Webster] Not the least turn or twist in the fibers of any one animal which does not render them more proper for that particular animal s way of life than… …
24Uniform twist — Twist Twist, n. 1. The act of twisting; a contortion; a flexure; a convolution; a bending. [1913 Webster] Not the least turn or twist in the fibers of any one animal which does not render them more proper for that particular animal s way of life… …
25Skelp — A Skelp (also spelled Scelp ) is a band of iron commonly forged from melted scrap iron of inferior quality. Cheap gun barrels could be made from this in the Damascus method wrapping the skelps around a mandrel to make spirals which were then… …
26bore — bore1 verb 1》 make (a hole) in something with a drill or other tool. ↘hollow out (a gun barrel or other tube). 2》 (of an athlete or racehorse) push another competitor out of the way. noun the hollow part inside a gun barrel or other tube.… …
27bore — Ⅰ. bore [1] ► VERB 1) make (a hole) in something with a drill or other tool. 2) hollow out (a gun barrel or other tube). ► NOUN 1) the hollow part inside a gun barrel or other tube. 2) the diameter of this: a small bore rifle …
28borer — Ⅰ. bore [1] ► VERB 1) make (a hole) in something with a drill or other tool. 2) hollow out (a gun barrel or other tube). ► NOUN 1) the hollow part inside a gun barrel or other tube. 2) the diameter of this: a small bore rifle …
29boring — Ⅰ. bore [1] ► VERB 1) make (a hole) in something with a drill or other tool. 2) hollow out (a gun barrel or other tube). ► NOUN 1) the hollow part inside a gun barrel or other tube. 2) the diameter of this: a small bore rifle …
30Operation Mawtini — Part of Iraq War Two Marines, watch the sun go down while standing on the gun line before combined arms training as part of the first week of the operation …
