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Introduced in 1963, the 340 Weatherby was designed as a response to the 338 Winchester Mag. However, Roy took advantage of the longer case to pack in more powder for greater velocity. And, it shoots heavier 338 bullets at higher velocities as well – a decidedly powerful combination. Ideally suited for animals the size of elk or larger, the 340 can also be used by deer hunters with lighter bullet weights.
| Bullet Type | Bullet Weight | B/C | @Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|---|---|
| Hornady® Interlock® | 225 | .397 | 3000 | 2762 | 2537 | 2322 | 2118 | 1924 |
| Barnes® TTSX™ | 225 | .514 | 2970 | 2786 | 2609 | 2440 | 2276 | 2119 |
| Hornady® Interlock® | 250 | .431 | 2900 | 2685 | 2481 | 2285 | 2098 | 1921 |
| Nosler® Partition® | 250 | .473 | 2941 | 2743 | 2553 | 2371 | 2197 | 2029 |
| Bullet Type | Bullet Weight | B/C | @Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|---|---|
| Hornady® Interlock® | 225 | .397 | 4496 | 3811 | 3215 | 2694 | 2247 | 1850 |
| Barnes® TTSX™ | 225 | .514 | 4407 | 3877 | 3401 | 2973 | 2588 | 2243 |
| Hornady® Interlock® | 250 | .431 | 4668 | 4002 | 3416 | 2899 | 2444 | 2048 |
| Nosler® Partition® | 250 | .473 | 4801 | 4176 | 3618 | 3120 | 2678 | 2286 |
| Bullet Type | Bullet Weight | B/C | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|---|
| Hornady® Interlock® | 225 | .397 | 1.5 | 0.0 | -7.00 | -20.4 | -41.6 |
| Barnes® TTSX™ | 225 | .514 | 3.7 | 4.4 | 0.0 | -10.3 | -27.2 |
| Hornady® Interlock® | 250 | .431 | 1.7 | 0.0 | -7.3 | -21.3 | -43.3 |
| Nosler® Partition® | 250 | .473 | 3.9 | 4.6 | 0.0 | -10.9 | -28.9 |
Todd K –
When choosing a rifle and ammunition for the task the 340 Weatherby made the choice easy. Loaded with 250 grain nosler partition even the big boys drop like lightning hit them between the horns. Phenomenal performance on plains game. African animals are tough and the 340 Weatherby delivers performance at extended range.
Hell’s Canyon –
I was shooting at a steep downward angle and the bull was 413 yards away. He was facing towards me at slight angle I held at the base of his neck and shoulder. At the shot the bull tumbled down hill about 75 yds. I recovered the bullet intact just under the skin on the left ham it almost went completely through him from one end to the other. That was the 17th elk I have taken with my .340 I have always used 225 grain loading Outstanding