12.7x99, also known as .50 BMG (Browning Machine Gun).
A "sniper rifle" is simply a rifle employed for that purpose. So long as the "sniper rifle" meets the criteria and restrictions for hunting firearms in the state you're hunting in, you can use it.
It was a Remington M-40 Sniper Rifle.
Have it examined by a good gunsmith. This rifle use a .22 caliber bullet, long rifle.
It depends on the rifle. The .300 Winchester Magnum has a muzzle velocity in excess of 3000 feet per second (914 meters/sec). The .338 Lapua Magnum runs about 823 m/s (2,700 ft/s). The .50 Browning is in the same general range. All are handloaded for sniper use, so details may vary with the bullet weight and adjustments made for the particular rifle and scope.
Use your sniper rifle. Look at the green button through the scope of the sniper rifle and it turns off.
The Mauser es340b was a single shot .22 long rifle. It was made too look and feel like a Mauser 98K. It is not a sniper rifle. It is a target rifle.
.22 long rifle.
He was rifling through his folders to find an important paper.
I wouldn't
You practice.
for your assalt rifle you should set it as the M16 with shotgun and FMJ. for sniper Barrett 50 cal with thermal and FMJ and for light machine gun set it as Mg4 with grip. for SMG use the MP5k with thermal.
Contact the maker of your rifle for their instructions. It will depend on bullet weight. Assuming you mean a .50 cal MUZZLELOADER- and not a .50 Barrett- between 75 and 90 grains of ffG black powder is an average load for a patched ball.