Hey Dakota, this data should also convince you:
Ballistics Calculation
Input Variables Firearm type Rifle Sight Height 1.5
Bullet Weight (grains) 150 Ballistic Coefficient .525
Muzzle Velocity (fps) 2900 Temperature 59
Barometric Pressure (hg) 29.53 Relative Humidity 78%
Zero Range (yards) 50 Wind Speed (mph) 0
Ballistics Table in Yards Hornady SST 150 gr., .525 B.C.
www.hornady.com
Range (yards) Muzzle 50 100 200 300 400 500
Velocity (fps) 2900 2811 2723 2553 2389 2231 2079
Energy (ft.-lb.) 2801 2631 2469 2170 1901 1658 1439
Trajectory (50 yd. zero) -1.5 0.0 0.4 -2.4 -10.4 -24.6 -45.8
Come Up in MOA -1.5 0.0 -0.4 1.1 3.3 5.9 8.7
Work up a load to about 2900fps. with 57gr max load of IMR7828.
This load should devistate an elk at any reasonable range with good shot placement to include heavy bone.
You could also buy some Hornady light magnum 140gr;
270 Win., 140 gr. BTSP 8556
Velocity (fps) / Energy (ft-lbs)
Muzzle 100 yd 200 yd 300 yd 400 yd 500 yd
3100/2987 2900/2614 2709/2280 2525/1982 2349/1715 2180/1477
Trajectory (inches)
Muzzle 100 yd 200 yd 300 yd 400 yd 500 yd
-1.50 1.30 0.00 -6.10 -17.60 -35.40
Either one will do the job.