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2003 US Army BRADLEY GUNNERY 503p.pdf - Survival Books

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FM 3-22.1Figure B-5. Reticle for 1-1000 telescope.(1) Objective Assembly. The objective assembly has an objective lens, an objectivecell assembly, and a lens cap with a parallax-reduction hole.(2) Diopter-Adjustment Knob. The diopter-adjustment knob allows you to adjust theimage to plus or minus 4 diopters.(3) Knurled Handle. Grasp the knurled handle (end) of the 25-mm adapter to install,rotate, or remove it from the gun bore.(4) Tapered Muzzle Cone, Each piece has a tapered muzzle cone to fit theappropriate gun bore.(5) Spring-Loaded Fingers. These center and secure the telescope to the adapter andthe adapter to the gun bore.CAUTIONOnly rotate the telescope itself when using it with the7.62-mm coax, that is, when using it without the25-mm adapter.When using the 25-mm adapter, do not turn the telescopeitself; instead, grasp and rotate the knurled end of the25-mm adapter.(6) Purging Valve Assembly. The telescope has a valve assembly to purge andcharge nitrogen.(7) Outlet Port Screw. This allows for nitrogen purging.B-5

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