4 of 4 .300 Rem SAUM factory loads carry 1,000 ft·lb and expansion velocity for whitetail deer; the best reach 900 yd (Hornady Precision Hunter 178 gr ELD-X). Ranked, with the drop chart for each.
| Load | gr | Max ethical yd | MV fps | 500 yd ft·lb | Shoulder shot |
|---|---|---|---|---|---|
| Hornady Precision Hunter 178 gr ELD-X | 178 | 900 | 2,950 | 1,826 | yes |
| Nosler Trophy Grade 180 gr Partition | 180 | 600 | 2,950 | 1,639 | yes |
| Nosler Trophy Grade 165 gr Partition | 165 | 550 | 3,025 | 1,402 | yes |
| Remington 165 gr Pointed Soft Point Core-Lokt | 165 | 550 | 3,075 | 1,190 | behind the shoulder only |
The 1,000 ft·lb deer figure traces to Townsend Whelen and is the one everyone repeats; Hawks puts the floor nearer 800. An 8–10″ heart/lung zone. Legal: CO: 1,000 ft·lb at 100 yd · SD: 1,000 ft·lb at muzzle. Floor used: 1,000 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.outdoorlife.com, www.petersenshunting.com, chuckhawks.com.