I found a pretty cool site featuring a bunch of WWII fanatics firing authentic guns. I like to look here often for reference, since I don't own an MG42 myself or anything, lol.
Warning: videos are pretty slow to dl.
http://198.144.2.125/MG42/Machinengewehr 42 - Videos.htm
Warning: videos are pretty slow to dl.
http://198.144.2.125/MG42/Machinengewehr 42 - Videos.htm