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About

Opening its doors in 2017, Viper bullets began as a side project for owner Peter Sutton who designed mono-metal bullets in his downtime between manufacturing precision mining and firearm parts in his machine shop. Located in the West Rand, the small engineering company has since taken on larger premises and produces bullets day and night.

All our bullets are manufactured to the highest standards from brass and copper bar stock on CNC lathes, with each piece individually tested for tolerance, weight and hand polished before shipping. Our designs are carefully tested in the range and veld, and since its inception our lines of bullets have successfully been used by enthusiastic shooters and Professional Hunters alike on a multitude of antelope, varmint species and even the big 5 across three continents.

BC & Twist: Plains Supreme

Calibre Weight (gr) BC G1 BC G7 Twist Rate Stab Fac. @ Sea Level Stab Fac. @ 1520m
.224
Flat Base 30 0.122 1 in 14 1.53 1.84
Flat Base 45 0.144 1 in 13 @ sea
1 in 14 @ 1520m
1.63 1.4
Flat Base 47 0.169 1 in 12 1.49 1.79
50 0.221 1 in 10 1.69 2.03
Flat Base 50 0.187 1 in 12 1.35 1.62
Flat Base 55 0.2 1 in 12 1.31 1.57
60 0.286 0.141 1 in 9 1.56 1.87
65 0.299 1 in 9 1.39 1.67
70 0.33 0.164 1 in 8 1.6 1.93
80 0.338 0.193 1 in 7 1.81 2.18
.243
70 0.32 0.155 1 in 10 1.59 1.91
75 0.348 0.169 1 in 10 1.39 1.69
80 0.337 0.163 1 in 10 1.4 1.68
85 0.372 0.18 1 in 10 1.22 1.5
T7 85 0.317 1.5 1.79
Flat Base 90 0.328 1 in 9 1.46 1.75
95 0.416 1 in 8 1.61 1.53
100 0.43 0.208 1 in 8 1.5 1.8
.257(6.35mm)
T7 87 0.331 1 in 10 1.96 2.36
T7 100 0.375 1 in 10 1.54 1.85
.264(6.5mm)
85 0.307 1 in 9 2.87 3.29
100 0.364 1 in 9 1.95 2.34
115 0.41 1 in 9 1.7 2.04
120 0.431 1 in 8 1.97 2.36
125 0.467 1 in 8 1.75 2.1
130 0.484 0.269 1 in 8 1.63 1.95
.270(.277″)
120 0.432 1 in 10 1.55 1.86
130 0.459 1 in 10 1.39 1.68
140 0.46 1.29 1.55
T7 145 0.451 1 in 10 1.32 1.59
7mm(.284″)
130 0.331 1 in 9 2.58 3.1
140 0.35 1 in 9 2.25 2.7
154 0.466 1 in 9 1.61 1.93
162 0.51 1 in 9 1.48 1.78
Flat Base 170 0.466 1 in 9 1.55 1.86
.308
130 0.34 1 in 13 1.56 1.88
140 0.362 1 in 12 1.48 1.78
150 0.4 1 in 12 1.5 1.78
T10 165 0.425 1 in 12 1.22 1.5
T7 165 0.407 1 in 12 1.5 1.81
180 0.441 1 in 10 1.67 2.01
Flat Base 200 0.478 1 in 10 1.59 1.91
Flat Base 220 0.526 1 in 10 1.31 1.58
.303
130 0.309 1 in 10 2.64 3.17
150 0.382 1 in 10 2.36 2.83
180 0.45 1 in 10 1.84 2.21
8mm
160 0.357 1 in 10 2.57 3.09
175 0.47 1 in 10 2.22 2.67
200 0.541 0.278 1 in 9.5 1.82 2.15
220 0.536 0.302 1 in 10 1.85 2.22
.330
Flat Base 250 0.55 1 in 10 1.72 2.06
.338
180 0.43 1 in 10 2.95 3.54
200 0.49 1 in 10 2.63 3.16
225 0.469 2.23 2.67
250 0.63 1 in 10 1.7 2.05
T10 250 0.6 1 in 10 1.81 2.17
275 0.59 1 in 10 1.82 2.19
300 0.553 1.63 1.95
9.3mm
250 0.477 0.271 1 in 14 1.64 1.97
Flat Base 286 0.474 0.309 1 in 15 1.66 2
.375
235 0.45 0.236 1 in 12 2.68 3.23
250 0.486 0.243 1 in 12 2.54 3.05
270 0.49 0.251 1 in 12 2.35 2.83
Flat Base 300 0.506 1 in 12 2.24 2.69
.404
300 0.341 0.241 2.97 3.57
350 0.397 0.281 2.46 2.95
400 0.45 0.321 2.23 2.68
.416
300 0.352 0.25
350 0.4 0.293
400 0.46 0.335
.458
350
400
450
500
.50 BMG
650 0.756 0.358 1 in 19
750 0.88 0.416 1 in 16

BC & Twist: Bush Supreme

Calibre Weight (gr) BC G1 BC G7 Twist Rate Stab Fac. @ Sea Level Stab Fac. @ 1520m
.224
40 0.12 1 in 14 1.53 1.84
45 0.14 1 in 14 1.35 1.64
50 0.144 1 in 12 1.71 2.05
55 0.154 1 in 11 1.61 1.94
60 0.163 1 in 10 1.69 2.04
.257(6.35mm)
115 0.21 1 in 10 1.52 1.8
.264(6.5mm)
140 0.28 1 in 9 1.54 1.85
.270(.277″)
150
7mm(.284″)
154 0.177 1 in 9 2.78 3.34
.308
150 0.22 0.23 1 in 14 1.57 1.89
165 0.253 1 in 13 1.54 1.86
180 0.27 0.279 1 in 12 1.58 1.9
215
.303
165 0.244 1 in 10 3.05 3.68
180 0.271 1 in 10
215
8mm
200 0.36 0.273 1 in 10 2.37 2.85
.338
250 0.26 0.318 1 in 10 2.79 3.36
9mm
250 0.314 1 in 10 3.45 4.15
9.3mm
250 0.22 0.272 2.44 2.93
286 0.249 0.309 1 in 14 1.59 1.91
0.375
250 0.224 0.253 1 in 14 2.79 3.16
300 0.268 0.305 1 in 12 3.23 3.88
.416
350 0.212 0.290 1 in 16 4.12 4.95
400 0.24 0.33 1 in 16 2.36 2.84
.404
350 0.21 3.99 4.8
400 0.215 0.323 1 in 16 2.54 3.06
.458
350 0.18 0.243 1 in 16
400 0.206 0.279 1 in 16
450 0.215 0.315 1 in 16
500 0.253 0.343 1 in 16

BC & Twist: Percussion Cup

Calibre Weight (gr) BC G1 BC G7 Twist Rate Stab Fac. @ Sea Level Stab Fac. @ 1520m
.338
250 0.178 0.316 1 in 10 3.23 3.88
9.3mm
286 0.225 0.313 1 in 14 2.19 2.63
.375
300 0.19 0.313 1 in 15 3.37 4.05
320 0.199 0.328
.416
350 0.179 0.292 1 in 16 3.34 4.02
400 0.203 0.332 1 in 16 2.7 3.07
.404
350 0.175 4.07 4.89
400 1 in 16 2.87 3.33
.425
400 0.216 0.322 1 in 18
.458
310 0.142 0.215 1 in 35
350 1 in 24
400 0.181 0.276 1 in 24
425 0.202 0.312 1 in 16
450 0.207 0.312 1 in 16
470 0.212 0.325 1 in 16
Brass 470 0.222 0.345 1 in 16
500 0.226 0.345 1 in 16
550 0.249 0.382 1 in 16
.470
500 0.249 0.324 1 in 20
550
.505
535 0.207 0.299 1 in 26
570 0.222 0.321 1 in 22
.510
535 0.207 0.296 1 in 26
570 0.221 0.315 1 in 24
0.600 (0.62″)
900 0.278 0.338 1 in 34
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