There are two adjustment screws located on the laser housing (elevation and windage). There is only one distance where the bullet path will coincide with the laser. On a normal weapon, the sights are mounted above the bore line and are adjusted to look slightly down with relation to the bore line. When the weapon is fired, the bullet “climbs” (actually, a bullet DROPS from the bore line from the moment it first leaves the barrel, but the bore is tilted upward slightly so the bullet is physically traveling upward for a short distance), crosses the sight line, reaches its upward peak (the peak of the “mid-range trajectory” ), descends to cross the sight line a SECOND time, and after that it’s all downhill. How the sights are adjusted, along with the muzzle velocity of the bullet (a 10mm is faster than a .45, and a rifle faster yet), determine where these points occur. The user must decide how high above or below the sight line the bullet can be allowed to strike and adjust the sights accordingly. A laser is seldom mounted above the bore line. It is usually below or to the side. This means the bullet crosses the laser sight line ONLY ONCE. This point is the “zero range.” For a laser mounted below the bore, at distances less than the zero range the bullet will be above the sight line. Beyond the sight line it will be below. The bullet will deviate from the sight line FASTER WITH A LASER than with conventional sights. If mounted to the side, the bullet will also deviate to the side of the laser line as well free video poker how to play backgammon no deposit bonus online casino 888 no download casino play roulette craps game black jack download american roulette play video poker baccarat free casino game no download online casino free money on line casino wagering roulette online online casino betting free online casino slots free craps best casino roulette gambling internet casino gambling uk best casino online full pay video poker no deposit casino code best craps game black jack tournament best online casino site craps online game newest online casino free slots no download play blackjack online free dueces wild video poker black jack gambling online video poker game free casino cash no deposit video poker tutorial play free video poker how to win at black jack casino roulette casino guide how to win at roulette rules of craps casino game online real money backgammon baccarat casino online free video poker game play free video poker video poker odds video poker tournaments as up and down. In practice, an M6 on a handgun can be adjusted to keep the bullet strike within about 2″ high and 2″ low out to about 100 feet, which is better than most people, and a lot of guns, can shoot.