For your enjoyment....here is a guy breaking 4000 fps with a 300 wsm.....NO KIDDING. (that case is one tough mother)
AND IMAGINE....HE HASN'T EVEN TAPPED INTO THE NEW RE17 POWDER....IT WASN'T HERE YET!

http://accurateshooter.wordpress.co...fps-30-cal-varminter-a-hit-with-hunters/