Ballistics

Ballistic Advantage

We often state that "nothing shoots flatter, hits harder or is more accurate" than a Weatherby. A key component in that claim is the ballistic performance of Weatherby Magnum ammunition. You can use the links below to compare the ballistic information between two different Weatherby calibers, or use the Ballistic PDF to review all Weatherby calibers and bullet weights.

Compare Calibers

Ballistics Specs PDF

Trajectory Comparison

.257 Wby.
Bullet B/C Path of Bullet
(Above or below line-of-sight of rifle scopes mounted 1.5" above bore)
Wt. Grains Bullet Type 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
80 Barnes TTSX .378 1.85 2.55 0.00 -6.41 -17.42
87 SP .322 2.10 2.80 0.00 -7.10 -19.50
100 Spitzer .256 3.00 3.90 0.00 -10.10 -28.50
100 SP .357 2.40 3.10 0.00 -7.70 -21.00
100 Barnes TSX .420 2.90 3.70 0.00 -8.80 -23.70
110 Accubond .418 2.70 3.26 0.00 -7.90 -21.20
115 BST .453 3.00 3.50 0.00 -7.90 -21.50
120 Partition .391 3.00 3.70 0.00 -8.90 -24.30
117 Rn-Ex .243 3.40 4.30 0.00 -11.10 -31.90
.257 Wby.
Bullet B/C Path of Bullet
(Above or below line-of-sight of rifle scopes mounted 1.5" above bore)
Wt. Grains Bullet Type 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
80 Barnes TTSX .378 1.85 2.55 0.00 -6.41 -17.42
87 SP .322 2.10 2.80 0.00 -7.10 -19.50
100 Spitzer .256 3.00 3.90 0.00 -10.10 -28.50
100 SP .357 2.40 3.10 0.00 -7.70 -21.00
100 Barnes TSX .420 2.90 3.70 0.00 -8.80 -23.70
110 Accubond .418 2.70 3.26 0.00 -7.90 -21.20
115 BST .453 3.00 3.50 0.00 -7.90 -21.50
120 Partition .391 3.00 3.70 0.00 -8.90 -24.30
117 Rn-Ex .243 3.40 4.30 0.00 -11.10 -31.90

Energy Comparison

.257 Wby.
Bullet B/C Energy (Foot-Pounds)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
80 Barnes TTSX .378 2661 2253 1904 1605 1346 1123
87 SP .322 2826 2328 1913 1563 1269 1019
100 Spitzer .256 2721 2122 1641 1253 940 693
100 SP .357 2881 2416 2019 1680 1388 1138
100 Barnes TSX .420 2731 2352 2019 1725 1496 1239
110 Accubond .418 2925 2513 2154 1839 1563 1320
115 BST .453 2952 2566 2226 1924 1656 1419
120 Partition .391 2910 2472 2091 1760 1471 1221
117 Rn-Ex .243 3007 2320 1742 1302 956 690
.257 Wby.
Bullet B/C Energy (Foot-Pounds)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
80 Barnes TTSX .378 2661 2253 1904 1605 1346 1123
87 SP .322 2826 2328 1913 1563 1269 1019
100 Spitzer .256 2721 2122 1641 1253 940 693
100 SP .357 2881 2416 2019 1680 1388 1138
100 Barnes TSX .420 2731 2352 2019 1725 1496 1239
110 Accubond .418 2925 2513 2154 1839 1563 1320
115 BST .453 2952 2566 2226 1924 1656 1419
120 Partition .391 2910 2472 2091 1760 1471 1221
117 Rn-Ex .243 3007 2320 1742 1302 956 690

Velocity Comparison

.257 Wby.
Bullet B/C Velocity (Feet per Second)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
80 Barnes TTSX .378 3870 3561 3274 3005 2753 2514
87 SP .322 3825 3472 3147 2845 2563 2297
100 Spitzer .256 3500 3091 2718 2375 2057 1766
100 SP .357 3602 3298 3016 2750 2500 2264
100 Barnes TSX .420 3570 3312 3079 2840 2396 2203
110 Accubond .418 3460 3207 2969 2744 2529 2325
115 BST .453 3400 3170 2952 2745 2547 2357
120 Partition .391 3305 3046 2801 2570 2350 2141
117 Rn-Ex .243 3402 2984 2595 2240 1921 1639
.257 Wby.
Bullet B/C Velocity (Feet per Second)
Wt. Grains Bullet Type Muzzle 100 Yds 200 Yds 300 Yds 400 Yds 500 Yds
80 Barnes TTSX .378 3870 3561 3274 3005 2753 2514
87 SP .322 3825 3472 3147 2845 2563 2297
100 Spitzer .256 3500 3091 2718 2375 2057 1766
100 SP .357 3602 3298 3016 2750 2500 2264
100 Barnes TSX .420 3570 3312 3079 2840 2396 2203
110 Accubond .418 3460 3207 2969 2744 2529 2325
115 BST .453 3400 3170 2952 2745 2547 2357
120 Partition .391 3305 3046 2801 2570 2350 2141
117 Rn-Ex .243 3402 2984 2595 2240 1921 1639

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