The only way I can justify using 130g bullets from a 300 RUM is so you can shoot the throat out in 100 rounds so you can rebarrel it. Other then that, I see no practical use to the 130g bullet. It surely will shoot flat, but thats about it. As far as long range hutning goes, your at the total opposite end of the spectrum and way of thinking. Light/fast bullets only get you so far, where heavy/slow bullets will get you a lot farther and do so with more energy and more FPS and less wind drift.
You should be using at the smallest, 180g bullets from your 300 RUM to use the caliber to its full potential, and its better with 200+ bullets.
I shot a few (50) 125g NBT's from my 300 RUM at 3900fps. They were a BOMB to say the least and I doubt they would have even killed a coyote with there lack of penetration, probly would have knocked him out more then anything. It would totally vaporize a gallon jug of water out to 300 yards.
I'd use the 130g barnes on antelope and deer out to 600 yards or so, but thats about it. There is A LOT better bullets to be used out of the 300 RUM then the 130g barnes.