Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 135gr | CutEdge ER Raptor bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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 2495 | <<locked>> | 84% | 57,624 psi | 90% | 3235 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,811 psi | 87% | 3248 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,838 psi | 84% | 3274 fps | 98.9% |
| Accurate 4064 | <<locked>> | 84% | 54,447 psi | 85% | 3238 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,767 psi | 87% | 3343 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 57,188 psi | 90% | 3330 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,187 psi | 86% | 3278 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 57,421 psi | 90% | 3396 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,360 psi | 85% | 3402 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,840 psi | 88% | 3301 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,956 psi | 88% | 3323 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,739 psi | 89% | 3415 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,375 psi | 85% | 3379 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,507 psi | 89% | 3373 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,911 psi | 84% | 3366 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,792 psi | 80% | 3301 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,164 psi | 69% | 3196 fps | 97.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,998 psi | 86% | 3451 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,537 psi | 90% | 3343 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 56,739 psi | 89% | 3320 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,911 psi | 84% | 3366 fps | 97% |
| Bofors RP7 | <<locked>> | 90% | 56,072 psi | 88% | 3294 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 86% | 57,159 psi | 90% | 3333 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 90% | 54,650 psi | 86% | 3343 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 88% | 54,259 psi | 85% | 3297 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,116 psi | 90% | 3327 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,766 psi | 86% | 3317 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 55,216 psi | 87% | 3376 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,143 psi | 57% | 2126 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,477 psi | 87% | 3284 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,404 psi | 85% | 3258 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,276 psi | 90% | 3294 fps | 98.7% |
| IMR 4350 | <<locked>> | 94% | 57,464 psi | 90% | 3330 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,462 psi | 85% | 3268 fps | 98.2% |
| IMR 4831 | <<locked>> | 94% | 56,391 psi | 88% | 3337 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 57,450 psi | 90% | 3356 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 55,927 psi | 88% | 3245 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,563 psi | 86% | 3251 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,418 psi | 85% | 3261 fps | 99.1% |
| Lovex S070 | <<locked>> | 92% | 55,666 psi | 87% | 3304 fps | 98.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,338 psi | 69% | 3094 fps | 97.1% |
| Norma 201 | <<locked>> | 82% | 55,680 psi | 87% | 3268 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,507 psi | 89% | 3264 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,201 psi | 87% | 3307 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,607 psi | 86% | 3317 fps | 96.7% |
| Norma MRP | <<locked>> | 98% | 53,606 psi | 84% | 3396 fps | 98.2% |
| Norma URP | <<locked>> | 92% | 54,578 psi | 86% | 3330 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 56,492 psi | 89% | 3337 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 57,406 psi | 90% | 3389 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,767 psi | 58% | 2172 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,145 psi | 90% | 3314 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,087 psi | 89% | 3402 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,780 psi | 84% | 3373 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,057 psi | 88% | 3366 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,621 psi | 86% | 3396 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 56,391 psi | 88% | 3264 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,797 psi | 89% | 3314 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 55,782 psi | 87% | 3360 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 90% | 56,072 psi | 88% | 3294 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,418 psi | 85% | 3261 fps | 99.1% |
| Shooters World Precision | <<locked>> | 84% | 54,563 psi | 86% | 3251 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,666 psi | 87% | 3304 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,071 psi | 86% | 3317 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,753 psi | 87% | 3291 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,550 psi | 89% | 3196 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,740 psi | 90% | 3196 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,070 psi | 85% | 3205 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,303 psi | 87% | 3353 fps | 97.2% |
| Somchem S335 | <<locked>> | 82% | 56,217 psi | 88% | 3189 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,652 psi | 89% | 3307 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 54,056 psi | 85% | 3337 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,391 psi | 88% | 3330 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 82% | 57,101 psi | 89% | 3176 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,753 psi | 89% | 3225 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,290 psi | 90% | 3241 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,650 psi | 86% | 3225 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,768 psi | 89% | 3327 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,054 psi | 82% | 3235 fps | 97% |
| Vihtavuori N540 | <<locked>> | 84% | 55,608 psi | 87% | 3232 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,912 psi | 88% | 3327 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,753 psi | 89% | 3389 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,869 psi | 89% | 3291 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,650 psi | 86% | 3343 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,006 psi | 72% | 3353 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,999 psi | 88% | 3301 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,985 psi | 89% | 3327 fps | 97.3% |
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% | 50,415 psi | 79% | 3123 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,834 psi | 77% | 3117 fps | 96.4% |
| Accurate 3100 | <<locked>> | 92% | 40,466 psi | 63% | 3005 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 47,790 psi | 75% | 3123 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,230 psi | 57% | 2933 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 80% | 53,577 psi | 84% | 3268 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,469 psi | 71% | 3091 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 50,067 psi | 78% | 3255 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,517 psi | 79% | 3327 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,803 psi | 72% | 3117 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,052 psi | 77% | 3199 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,534 psi | 56% | 2949 fps | 96.2% |
| Alliant Reloder-17 | 75.6 gr | 80% | 40,509 psi | 63% | 3100 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 49,443 psi | 77% | 3241 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 46,905 psi | 74% | 3228 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 84% | 29,544 psi | 46% | 2776 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 96% | 38,624 psi | 61% | 3051 fps | 95.9% |
| Alliant Reloder-26 | 85.3 gr | 88% | 37,318 psi | 58% | 3061 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,751 psi | 84% | 3281 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 46,093 psi | 72% | 3127 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 46,905 psi | 74% | 3228 fps | 95.1% |
| Bofors RP7 | <<locked>> | 82% | 43,366 psi | 68% | 3035 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 46,615 psi | 73% | 3136 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 82% | 41,408 psi | 65% | 3064 fps | 95% |
| Hodgdon H4350 | <<locked>> | 84% | 47,427 psi | 74% | 3159 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,054 psi | 52% | 2831 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,010 psi | 80% | 3251 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 43,888 psi | 69% | 3150 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 42% | 1903 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,953 psi | 81% | 3222 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,819 psi | 75% | 3133 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,169 psi | 79% | 3166 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 44,309 psi | 69% | 3074 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,206 psi | 66% | 3012 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 34,925 psi | 55% | 2881 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 50,328 psi | 79% | 3228 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 52,620 psi | 82% | 3189 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,993 psi | 75% | 3133 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,523 psi | 62% | 2949 fps | 96% |
| Lovex S070 | <<locked>> | 84% | 42,975 psi | 67% | 3048 fps | 95.8% |
| Lovex S071 | <<locked>> | 96% | 38,725 psi | 61% | 2966 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 52,315 psi | 82% | 3209 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,910 psi | 83% | 3205 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,414 psi | 76% | 3182 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 51,024 psi | 80% | 3248 fps | 95.8% |
| Norma MRP | <<locked>> | 92% | 42,960 psi | 67% | 3169 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 36,245 psi | 57% | 2933 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 80% | 48,965 psi | 77% | 3202 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 40,625 psi | 64% | 3051 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,354 psi | 43% | 1949 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,702 psi | 73% | 3114 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,301 psi | 84% | 3337 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,105 psi | 68% | 3169 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,289 psi | 57% | 2953 fps | 95.8% |
| ReloadSwiss RS 70 | 78.7 gr | 82% | 37,985 psi | 60% | 3028 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 49,617 psi | 78% | 3150 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,207 psi | 68% | 3061 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 94% | 48,544 psi | 76% | 3219 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 82% | 43,366 psi | 68% | 3035 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,523 psi | 62% | 2949 fps | 96% |
| Shooters World Precision | <<locked>> | 80% | 47,993 psi | 75% | 3133 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 42,975 psi | 67% | 3048 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,802 psi | 70% | 3123 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,301 psi | 82% | 3235 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,084 psi | 83% | 3143 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,817 psi | 70% | 2986 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,408 psi | 65% | 2949 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 48,109 psi | 75% | 3212 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 52,939 psi | 83% | 3136 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,743 psi | 69% | 3068 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 32,663 psi | 51% | 2874 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 45,905 psi | 72% | 3130 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 53,679 psi | 84% | 3127 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,922 psi | 78% | 3117 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,256 psi | 79% | 3130 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,698 psi | 65% | 2986 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 37,666 psi | 59% | 2936 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 96% | 45,353 psi | 71% | 3100 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 48,689 psi | 76% | 3117 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,246 psi | 58% | 2936 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 32,576 psi | 51% | 2861 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,130 psi | 58% | 2907 fps | 98.6% |
| Winchester 760 | <<locked>> | 82% | 41,408 psi | 65% | 3064 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 88% | 29,950 psi | 47% | 2874 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,257 psi | 82% | 3238 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 49,226 psi | 77% | 3186 fps | 95.6% |
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 103 powders for .300 Norma Mag. loaded with the .308 | 135gr | CutEdge ER Raptor. Alliant Reloder-26 delivers the highest muzzle velocity at 3,451 fps; across all powders the maximum-charge window runs from 2,126 fps to 3,451 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 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 135.0 gr projectile in 0.308" calls for a 1:10.0 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. ReloadSwiss RS 70, Alliant Reloder-26, Alliant Reloder-17 rank at the top here: for .300 Norma Mag. with the .308 | 135gr | CutEdge ER Raptor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, Baschieri & Pellagri 109, Hodgdon H1000 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.