Hey geowood
Most shooters who are loading the 300 RUM prefer the 200 gr Accubond for target and game. The 200 gr bullet can be pushed to 3150 fps in the 300RUM and if you compare ballistics
130 gr Barnes TTSX, ballistic coefficient of .350, 3900 fps
yardage / drop / fpe / wind drift
400 yd / -11.5" / 2179 fpe / 10.56"
500 yd / -23.81" / 1807 fpe / 17.15"
600 yd / -41.68" / 1487 fpe / 25.76"
drops below 2000 fpe at approx 435 yards
200 gr Accubond, ballistic coefficient of .588, 3150 fps
400 yd / -15.94" / 2857 fpe / 7.7"
500 yd / -31.62" / 2548 fpe / 12.27"
600 yd / -53.52" / 2266 fpe / 18.27"
drops below 2000 fpe at approx 800 yards
exceptional accuracy can usually be obtained with almost any bullet with some work
but the heavier bullets fly better and deliver a lot more downrange where it counts.
JMHO, YMMV