xs sights are pretty damn good. http://xssights.com/
not sure what your meaning by bore sight. bore sighting is a technique of looking down the bore of a firearm and adjusting the sights so the image through the bore appears the same as the sight picture. this gets you roughly on target so fine tuning can then be done with live ammunition.
my preferred optics are nikon, trijicon, nightforce, vortex in no specific order.
a 44 mag is 200 yards max 100yards is typically hunting range. i run a nikon african monarch 1-4x on my ruger 44 carbine.