Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 135gr | IBEX Viper bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 57,667 psi | 90% | 3107 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,508 psi | 90% | 3140 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,549 psi | 85% | 3143 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 57,188 psi | 90% | 3186 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,405 psi | 88% | 3255 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 56,347 psi | 88% | 3202 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 92% | 56,942 psi | 89% | 3192 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,216 psi | 87% | 3150 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 56,086 psi | 88% | 3136 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,666 psi | 87% | 3320 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,493 psi | 90% | 3228 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,621 psi | 86% | 3192 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 3307 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,462 psi | 85% | 3287 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,611 psi | 65% | 3018 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,615 psi | 73% | 3189 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,898 psi | 88% | 3209 fps | 99.1% |
| Bofors RP3 | <<locked>> | 90% | 55,114 psi | 86% | 3192 fps | 99.9% |
| Bofors RP7 | <<locked>> | 94% | 54,781 psi | 86% | 3140 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,840 psi | 89% | 3136 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,984 psi | 86% | 3182 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,318 psi | 88% | 3281 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 90% | 55,709 psi | 87% | 3196 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 96% | 55,071 psi | 86% | 3238 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 56,869 psi | 89% | 3215 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,156 psi | 83% | 3173 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,202 psi | 88% | 3248 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,651 psi | 87% | 3268 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,926 psi | 56% | 1995 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,389 psi | 85% | 3156 fps | 99.7% |
| IMR 3031 | <<locked>> | 86% | 56,753 psi | 89% | 3202 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,739 psi | 89% | 3182 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,449 psi | 88% | 3150 fps | 96.7% |
| IMR 4350 | <<locked>> | 98% | 54,694 psi | 86% | 3159 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,347 psi | 88% | 3176 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 3241 fps | 99.1% |
| IMR 4895 | <<locked>> | 88% | 55,912 psi | 88% | 3225 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 84% | 55,216 psi | 87% | 3150 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 56,536 psi | 89% | 3182 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,463 psi | 87% | 3120 fps | 99.6% |
| Lovex S062 | <<locked>> | 90% | 57,000 psi | 89% | 3182 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,246 psi | 88% | 3173 fps | 98% |
| Lovex S070 | <<locked>> | 98% | 57,290 psi | 90% | 3209 fps | 97.1% |
| Norma 201 | <<locked>> | 86% | 55,680 psi | 87% | 3153 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,695 psi | 87% | 3153 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,159 psi | 90% | 3232 fps | 99.7% |
| Norma URP | <<locked>> | 98% | 55,027 psi | 86% | 3238 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 90% | 57,696 psi | 90% | 3255 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,232 psi | 90% | 3281 fps | 97.8% |
| Ramshot TAC | <<locked>> | 84% | 55,332 psi | 87% | 3156 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,187 psi | 86% | 3186 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,072 psi | 88% | 3146 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,376 psi | 57% | 2041 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,782 psi | 87% | 3169 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,810 psi | 86% | 3261 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,418 psi | 85% | 3297 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,854 psi | 88% | 3271 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,187 psi | 86% | 3294 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 84% | 56,956 psi | 89% | 3143 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,144 psi | 88% | 3150 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,897 psi | 86% | 3179 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 94% | 54,781 psi | 86% | 3140 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,246 psi | 88% | 3173 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,536 psi | 89% | 3182 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,000 psi | 89% | 3182 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,290 psi | 90% | 3209 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,043 psi | 88% | 3235 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,273 psi | 85% | 3136 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,694 psi | 86% | 3169 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,565 psi | 89% | 3087 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,594 psi | 89% | 3081 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,434 psi | 88% | 3117 fps | 96.7% |
| Somchem S321 | <<locked>> | 82% | 56,623 psi | 89% | 3186 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,231 psi | 88% | 3087 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,029 psi | 89% | 3186 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 55,013 psi | 86% | 3176 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,011 psi | 83% | 3241 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 56,188 psi | 88% | 3048 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,608 psi | 89% | 3071 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,550 psi | 87% | 3117 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,999 psi | 88% | 3123 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,478 psi | 89% | 3153 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,319 psi | 90% | 3228 fps | 99% |
| Vihtavuori N530 | <<locked>> | 84% | 55,666 psi | 87% | 3150 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,520 psi | 85% | 3120 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,579 psi | 89% | 3238 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,847 psi | 72% | 3110 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,638 psi | 90% | 3202 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,695 psi | 87% | 3202 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,332 psi | 87% | 3245 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,753 psi | 59% | 3012 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,549 psi | 85% | 3176 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 51,082 psi | 80% | 3005 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,208 psi | 71% | 2940 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,097 psi | 80% | 3087 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 42,641 psi | 67% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 38,247 psi | 60% | 2894 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 46,963 psi | 74% | 3031 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,987 psi | 63% | 2858 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,791 psi | 76% | 3038 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 49,501 psi | 78% | 3038 fps | 100% |
| Alliant Power Pro 2000-MR | 60.6 gr | 80% | 42,728 psi | 67% | 3051 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,103 psi | 63% | 2890 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,830 psi | 67% | 2956 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 39,740 psi | 62% | 2949 fps | 95.6% |
| Alliant Reloder-17 | 59.7 gr | 80% | 34,867 psi | 55% | 2844 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 34,911 psi | 55% | 2841 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,741 psi | 64% | 3048 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,035 psi | 72% | 3025 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 40,219 psi | 63% | 2900 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 51,648 psi | 81% | 3084 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,531 psi | 79% | 3028 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,196 psi | 76% | 3064 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,765 psi | 83% | 3219 fps | 99% |
| Hodgdon H380 | <<locked>> | 80% | 40,872 psi | 64% | 2897 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 92% | 48,559 psi | 76% | 3117 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 47,398 psi | 74% | 3041 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 34,795 psi | 55% | 2782 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,497 psi | 68% | 3009 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 94% | 51,880 psi | 81% | 3199 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,919 psi | 42% | 1788 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,208 psi | 71% | 2982 fps | 98.6% |
| IMR 3031 | <<locked>> | 80% | 47,108 psi | 74% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,930 psi | 66% | 2897 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,995 psi | 78% | 3031 fps | 95.3% |
| IMR 4350 | <<locked>> | 96% | 51,503 psi | 81% | 3104 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 90% | 50,111 psi | 79% | 3061 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 39,044 psi | 61% | 2894 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 43,801 psi | 69% | 2992 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 48,791 psi | 76% | 3038 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 46,644 psi | 73% | 3015 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 46,688 psi | 73% | 2959 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 42,467 psi | 67% | 2913 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 44,454 psi | 70% | 2949 fps | 95.4% |
| Lovex S070 | <<locked>> | 92% | 47,761 psi | 75% | 3035 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,528 psi | 73% | 2989 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 46,499 psi | 73% | 2995 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,235 psi | 66% | 2946 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 40,205 psi | 63% | 2940 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 41,611 psi | 65% | 2953 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 94% | 47,442 psi | 74% | 3100 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 48,921 psi | 77% | 3038 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,443 psi | 76% | 3061 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,736 psi | 83% | 3091 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,224 psi | 43% | 1827 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 46,398 psi | 73% | 2992 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,991 psi | 71% | 3071 fps | 97.6% |
| ReloadSwiss RS 60 | 59.7 gr | 80% | 36,898 psi | 58% | 2920 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 40,059 psi | 63% | 2959 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,467 psi | 67% | 3022 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 50,879 psi | 80% | 3041 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,469 psi | 70% | 2936 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 38,000 psi | 60% | 2841 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 92% | 51,648 psi | 81% | 3084 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 88% | 44,454 psi | 70% | 2949 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,644 psi | 73% | 3015 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 42,467 psi | 67% | 2913 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 47,761 psi | 75% | 3035 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,363 psi | 60% | 2881 fps | 96.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,674 psi | 75% | 3015 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,455 psi | 71% | 2992 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,224 psi | 74% | 2930 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,624 psi | 62% | 2782 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,937 psi | 78% | 3002 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 52,953 psi | 83% | 3123 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 47,210 psi | 74% | 2936 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,862 psi | 73% | 3005 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 38,609 psi | 61% | 2844 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 30,327 psi | 48% | 2710 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 52,910 psi | 83% | 2999 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,355 psi | 74% | 2923 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,656 psi | 68% | 2917 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,048 psi | 69% | 2917 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,680 psi | 57% | 2772 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 39,436 psi | 62% | 2884 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,023 psi | 77% | 3035 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 42,743 psi | 67% | 2907 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 41,568 psi | 65% | 2946 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 38,029 psi | 60% | 2936 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 34,679 psi | 54% | 2740 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 48,878 psi | 77% | 3084 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 48,559 psi | 76% | 3117 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 33,417 psi | 52% | 2871 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,991 psi | 71% | 2995 fps | 98.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 92 powders for .308 Norma Mag. loaded with the .308 | 135gr | IBEX Viper. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,320 fps; across all powders the maximum-charge window runs from 1,995 fps to 3,320 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .308 Norma Mag. with the .308 | 135gr | IBEX Viper they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.