Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 132gr | Brenneke TIG nature bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Alliant Reloder-17 and Alliant Reloder-16.
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.
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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 2495 | <<locked>> | 82% | 54,549 psi | 85% | 3225 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,550 psi | 89% | 3297 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,882 psi | 86% | 3323 fps | 99% |
| Accurate 4064 | <<locked>> | 84% | 55,085 psi | 86% | 3284 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,724 psi | 89% | 3392 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 55,680 psi | 87% | 3320 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 96% | 54,346 psi | 85% | 3373 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,230 psi | 87% | 3451 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,405 psi | 88% | 3346 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,681 psi | 89% | 3373 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 57,667 psi | 90% | 3465 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,361 psi | 87% | 3428 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,348 psi | 90% | 3422 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,868 psi | 86% | 3419 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,706 psi | 81% | 3346 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,860 psi | 70% | 3241 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,188 psi | 88% | 3504 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 57,392 psi | 90% | 3363 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,868 psi | 86% | 3419 fps | 97.1% |
| Bofors RP7 | <<locked>> | 90% | 56,782 psi | 89% | 3343 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 84% | 54,172 psi | 85% | 3317 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 90% | 55,317 psi | 87% | 3386 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 88% | 54,984 psi | 86% | 3343 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,215 psi | 85% | 3317 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,463 psi | 87% | 3363 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 56,072 psi | 88% | 3422 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,143 psi | 57% | 2159 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,072 psi | 88% | 3330 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,998 psi | 86% | 3304 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,725 psi | 90% | 3340 fps | 98.7% |
| IMR 4350 | <<locked>> | 92% | 54,491 psi | 85% | 3310 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,013 psi | 86% | 3310 fps | 98.2% |
| IMR 4831 | <<locked>> | 94% | 57,261 psi | 90% | 3386 fps | 99.9% |
| IMR 4895 | <<locked>> | 82% | 54,404 psi | 85% | 3340 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,536 psi | 89% | 3294 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,158 psi | 86% | 3297 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,984 psi | 86% | 3304 fps | 99.2% |
| Lovex S070 | <<locked>> | 92% | 56,550 psi | 89% | 3353 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,252 psi | 71% | 3143 fps | 97.2% |
| Norma 201 | <<locked>> | 82% | 56,318 psi | 88% | 3310 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,188 psi | 90% | 3310 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,970 psi | 88% | 3356 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,535 psi | 87% | 3366 fps | 96.8% |
| Norma MRP | <<locked>> | 98% | 54,592 psi | 86% | 3448 fps | 98.3% |
| Norma URP | <<locked>> | 92% | 55,463 psi | 87% | 3379 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 57,246 psi | 90% | 3386 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 54,462 psi | 85% | 3369 fps | 98.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,921 psi | 75% | 3251 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,753 psi | 58% | 2208 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,099 psi | 85% | 3297 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,592 psi | 86% | 3422 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,014 psi | 89% | 3415 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,492 psi | 87% | 3448 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 57,014 psi | 89% | 3314 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,479 psi | 90% | 3360 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,898 psi | 88% | 3340 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 98% | 56,710 psi | 89% | 3409 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 56,782 psi | 89% | 3343 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,984 psi | 86% | 3304 fps | 99.2% |
| Shooters World Precision | <<locked>> | 84% | 55,158 psi | 86% | 3297 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,550 psi | 89% | 3353 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,622 psi | 87% | 3363 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,449 psi | 88% | 3343 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,087 psi | 89% | 3241 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,824 psi | 86% | 3189 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,737 psi | 86% | 3251 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,217 psi | 88% | 3402 fps | 97.3% |
| Somchem S335 | <<locked>> | 82% | 56,869 psi | 89% | 3232 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,319 psi | 90% | 3356 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 54,984 psi | 86% | 3383 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,217 psi | 90% | 3376 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 82% | 57,653 psi | 90% | 3222 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,522 psi | 90% | 3274 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,288 psi | 85% | 3232 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,245 psi | 87% | 3268 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 57,682 psi | 90% | 3376 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,997 psi | 83% | 3284 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 84% | 56,246 psi | 88% | 3278 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,695 psi | 89% | 3373 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 3438 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,867 psi | 84% | 3274 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,506 psi | 87% | 3392 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,050 psi | 74% | 3399 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,811 psi | 89% | 3350 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,809 psi | 84% | 3304 fps | 96.6% |
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 2495 | <<locked>> | 80% | 50,995 psi | 80% | 3169 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,284 psi | 77% | 3159 fps | 96.4% |
| Accurate 3100 | <<locked>> | 90% | 38,319 psi | 60% | 2982 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,341 psi | 76% | 3169 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,840 psi | 58% | 2976 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 80% | 45,948 psi | 72% | 3136 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 50,807 psi | 80% | 3304 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,242 psi | 80% | 3379 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,456 psi | 73% | 3166 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,676 psi | 78% | 3241 fps | 99.6% |
| Alliant Reloder-16 | 72.1 gr | 80% | 35,998 psi | 56% | 2992 fps | 96.3% |
| Alliant Reloder-17 | 77.7 gr | 80% | 41,191 psi | 65% | 3143 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 50,169 psi | 79% | 3287 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 47,761 psi | 75% | 3274 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 29,950 psi | 47% | 2818 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 96% | 39,175 psi | 61% | 3097 fps | 96.1% |
| Alliant Reloder-26 | 85.6 gr | 86% | 35,172 psi | 55% | 3025 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 46,731 psi | 73% | 3173 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 47,761 psi | 75% | 3274 fps | 95.3% |
| Bofors RP7 | <<locked>> | 82% | 43,758 psi | 69% | 3077 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 47,181 psi | 74% | 3179 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 41,901 psi | 66% | 3107 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 84% | 48,037 psi | 75% | 3205 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,518 psi | 53% | 2874 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,779 psi | 81% | 3301 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 44,411 psi | 70% | 3192 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,963 psi | 42% | 1936 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,417 psi | 82% | 3268 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,327 psi | 76% | 3179 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,734 psi | 80% | 3212 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 44,875 psi | 70% | 3117 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,583 psi | 67% | 3054 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 35,462 psi | 56% | 2923 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 50,995 psi | 80% | 3278 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 53,113 psi | 83% | 3235 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,515 psi | 76% | 3176 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,943 psi | 63% | 2989 fps | 96% |
| Lovex S070 | <<locked>> | 82% | 40,741 psi | 64% | 3025 fps | 95% |
| Lovex S071 | <<locked>> | 96% | 39,508 psi | 62% | 3009 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 52,823 psi | 83% | 3255 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,650 psi | 84% | 3251 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,052 psi | 77% | 3228 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 48,109 psi | 75% | 3222 fps | 95% |
| Norma MRP | <<locked>> | 92% | 43,772 psi | 69% | 3219 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 36,811 psi | 58% | 2976 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 49,632 psi | 78% | 3251 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 84% | 41,191 psi | 65% | 3094 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 98% | 44,454 psi | 70% | 3176 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,296 psi | 43% | 1978 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,355 psi | 74% | 3163 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,816 psi | 69% | 3215 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,782 psi | 58% | 2992 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 38,609 psi | 61% | 3071 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 50,169 psi | 79% | 3196 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,888 psi | 69% | 3107 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 94% | 52,373 psi | 82% | 3278 fps | 95% |
| Rottweil R 905 | <<locked>> | 94% | 49,342 psi | 77% | 3268 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 82% | 43,758 psi | 69% | 3077 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,943 psi | 63% | 2989 fps | 96% |
| Shooters World Precision | <<locked>> | 80% | 48,515 psi | 76% | 3176 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 40,741 psi | 64% | 3025 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,324 psi | 71% | 3169 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,823 psi | 83% | 3278 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,693 psi | 84% | 3186 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,353 psi | 71% | 3028 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,872 psi | 66% | 2992 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 48,892 psi | 77% | 3261 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 53,403 psi | 84% | 3179 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,266 psi | 69% | 3110 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 33,214 psi | 52% | 2920 fps | 98.3% |
| Somchem S385 | <<locked>> | 90% | 43,497 psi | 68% | 3107 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 54,288 psi | 85% | 3173 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,575 psi | 79% | 3163 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,937 psi | 80% | 3176 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,293 psi | 66% | 3031 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 38,261 psi | 60% | 2982 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 96% | 46,180 psi | 72% | 3150 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 49,269 psi | 77% | 3159 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,753 psi | 59% | 2976 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 33,228 psi | 52% | 2907 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,608 psi | 59% | 2946 fps | 98.7% |
| Winchester 760 | <<locked>> | 82% | 42,061 psi | 66% | 3110 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 88% | 30,385 psi | 48% | 2920 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,924 psi | 83% | 3284 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 50,038 psi | 78% | 3235 fps | 95.7% |
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 100 powders for .300 Norma Mag. loaded with the .308 | 132gr | Brenneke TIG nature. Alliant Reloder-26 delivers the highest muzzle velocity at 3,504 fps; across all powders the maximum-charge window runs from 2,159 fps to 3,504 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 132.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 Reloder-26, Alliant Reloder-17, Alliant Reloder-16 rank at the top here: for .300 Norma Mag. with the .308 | 132gr | Brenneke TIG nature they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Hodgdon H1000, Hodgdon H4831 SC burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.