9 of 9 .458 Win Mag factory loads carry 800 ft·lb and expansion velocity for pronghorn; the best reach 1,000 yd (Barnes VOR-TX Safari 450 gr Banded Solid RN). Ranked, with the drop chart for each.
| Load | gr | Max ethical yd | MV fps | 500 yd ft·lb | Shoulder shot |
|---|---|---|---|---|---|
| Barnes VOR-TX Safari 450 gr Banded Solid RN | 450 | 1,000 | 2,240 | 1,660 | yes |
| Federal Safari Trophy Bonded Sledgehammer Solid 500 gr | 500 | 900 | 1,950 | 1,311 | yes |
| Hornady Dangerous Game Series 500 gr DGS | 500 | 900 | 2,140 | 1,364 | yes |
| Hornady Dangerous Game Series 500 gr SPF DGX Bonded | 500 | 900 | 2,140 | 1,364 | yes |
| Federal Safari Trophy Bonded Bear Claw 400 gr | 400 | 850 | 2,250 | 1,450 | yes |
| Federal Safari Trophy Bonded Bear Claw 500 gr | 500 | 850 | 2,090 | 1,263 | yes |
| Norma African PH Solids 500 gr Norma Solid | 500 | 800 | 2,100 | 1,217 | yes |
| Federal Safari Woodleigh Hydro Solid 500 gr | 500 | 750 | 2,050 | 1,147 | yes |
| Barnes VOR-TX Safari 450 gr TSX FB | 450 | 200 | 2,240 | 1,695 | yes |
Chuck Hawks: ~800 ft·lb at impact with a .24″+ bullet of SD ≥ .215. Legal: CO: 1,000 ft·lb at 100 yd (rifle). Floor used: 800 ft·lb at impact plus the bullet's published expansion velocity. Orange = a target or varmint bullet (construction, not energy); red = never carries the energy. Sources: www.chuckhawks.com, cpw.state.co.us.