interesting, so the overall design is usually set at the inventory level, meaning you take in so many rifles and make them to a standard system. then deploy them to the units ?
Yes, the military will have one type built to the same spec. Any variation off of baseline requires a MWO. The idea is that any school trained Sniper can use any issue rifle in the inventory, everything is standard.
is camo painting done at this stage or by the unit who is issued one?
The end user will camouflage their equipment.
(sorry my wording is bad, didnt mean to confuse, i was talking about the defects in eyes from one shooter to another, say one has a defect in lens of his eye, do you adjust the eyepiece or get a prescription lens?)
Shooters wear prescription lenses, or undergo PRK corrective surgery. The optic on the rifle is not designed to account for vision differences in shooters.
the clicks refereed tot he windage elevations just my slang for adjustment on the turrets
The Sniper and the Spotter (and generally the radioman/third guy for security) will all confirm zero on the same sniper weapon system. If there are any differences in zero between shooters, those will be recorded in the individual shooters data book about what those differences are.
and i know about ammo characteristics, thus why zeroing in one ammo VS using a new type can change your zero point. but i thought the snipers would either get high end ammo or is it just the standard variety (mass amounts of surplus ?)
There are multiple standards for sniper ammunition, the two that are currently in production are M118LR and M118R Mk316 Mod0. The M118R uses the 175gr SMK, Reloader15 powder, arsenal primer, and Lake City match brass. Mk316 Mod0 uses the 175gr SMK, IMR4065 powder, Fed GMM primer, and a custom Federal match case. The accuracy standards for both loads are very good, but there is no guarantee they will shoot to the same point of aim/impact as the other. There is also no guarantee that two different lots of the same spec ammo will shoot to the same poi.
In 300 Win Mag, there are also two loads in the inventory, the Mk248 Mod0 (190gr SMK) and Mk248 Mod1 (220gr SMK). Either load is ballistically superior to the 7.52x51 in terms of maximum range, but you normally only find 300 Win Mag sniper rifles with SOCOM units, although the XM2010 is filtering into the inventory slowly.
Sniper will also get a "holdover zero" or actual zero for M80 ball just in case they run out of good ammo to shoot. My last sniper team was knocking down pop ups at 500 meters with M80, and the aiming point was five mils low, four mils left. Using ball ammo is not preferred, but it is important to know how to use it if you have to.
Jimro