Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 115gr | Lehigh Defense Controlled Chaos bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 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.
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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>> | 84% | 54,462 psi | 85% | 3409 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,420 psi | 88% | 3455 fps | 96.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 3399 fps | 97% |
| Accurate 4064 | <<locked>> | 86% | 54,766 psi | 86% | 3461 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,666 psi | 87% | 3550 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 84% | 57,609 psi | 90% | 3553 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 88% | 55,303 psi | 87% | 3491 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,072 psi | 88% | 3494 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,273 psi | 85% | 3615 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,999 psi | 88% | 3520 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,130 psi | 88% | 3543 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,434 psi | 88% | 3625 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,099 psi | 85% | 3589 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,978 psi | 74% | 3425 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,317 psi | 85% | 3642 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,128 psi | 85% | 3494 fps | 99.1% |
| Bofors RP3 | <<locked>> | 88% | 57,000 psi | 89% | 3537 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 56,478 psi | 89% | 3497 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,479 psi | 90% | 3478 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,449 psi | 88% | 3524 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 57,638 psi | 90% | 3550 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 92% | 54,447 psi | 85% | 3537 fps | 97% |
| Hodgdon H4895 | <<locked>> | 82% | 54,520 psi | 85% | 3501 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,782 psi | 89% | 3537 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,752 psi | 86% | 3533 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,013 psi | 86% | 3570 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,868 psi | 56% | 2287 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,695 psi | 87% | 3507 fps | 99.9% |
| IMR 3031 | <<locked>> | 82% | 54,897 psi | 86% | 3494 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,650 psi | 86% | 3471 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,740 psi | 90% | 3507 fps | 97.5% |
| IMR 4350 | <<locked>> | 96% | 57,450 psi | 90% | 3530 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,607 psi | 86% | 3468 fps | 96.9% |
| IMR 4831 | <<locked>> | 96% | 56,231 psi | 88% | 3540 fps | 99.4% |
| IMR 4895 | <<locked>> | 86% | 57,624 psi | 90% | 3579 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 56,072 psi | 88% | 3494 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,404 psi | 85% | 3465 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,449 psi | 88% | 3471 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 54,868 psi | 86% | 3474 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,549 psi | 85% | 3465 fps | 98.1% |
| Lovex S070 | <<locked>> | 94% | 55,970 psi | 88% | 3507 fps | 97.5% |
| Norma 201 | <<locked>> | 84% | 56,188 psi | 88% | 3491 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,855 psi | 89% | 3494 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,405 psi | 87% | 3524 fps | 99.8% |
| Norma MRPᴾ | <<locked>> | 100% | 53,171 psi | 83% | 3583 fps | 96.7% |
| Norma URP | <<locked>> | 94% | 54,433 psi | 85% | 3533 fps | 99% |
| Ramshot Big Game | <<locked>> | 86% | 56,521 psi | 89% | 3550 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 96% | 57,305 psi | 90% | 3589 fps | 98.3% |
| Ramshot TAC | <<locked>> | 82% | 56,724 psi | 89% | 3504 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,594 psi | 89% | 3530 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,419 psi | 57% | 2339 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 57,725 psi | 90% | 3527 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,116 psi | 90% | 3622 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 57,537 psi | 90% | 3661 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,840 psi | 88% | 3573 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,636 psi | 86% | 3596 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 82% | 56,898 psi | 89% | 3481 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,869 psi | 89% | 3491 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,811 psi | 89% | 3527 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 56,478 psi | 89% | 3497 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,549 psi | 85% | 3465 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,404 psi | 85% | 3465 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,868 psi | 86% | 3474 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,970 psi | 88% | 3507 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,955 psi | 86% | 3530 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,535 psi | 87% | 3484 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,115 psi | 88% | 3514 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,159 psi | 90% | 3425 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,665 psi | 86% | 3366 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,694 psi | 86% | 3409 fps | 97% |
| Somchem S335 | <<locked>> | 84% | 56,797 psi | 89% | 3415 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,071 psi | 86% | 3471 fps | 99.7% |
| Somchem S355 | <<locked>> | 90% | 56,811 psi | 89% | 3524 fps | 99.9% |
| Somchem S365 | <<locked>> | 98% | 57,203 psi | 90% | 3602 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,347 psi | 88% | 3524 fps | 96.8% |
| Vihtavuori N133 | <<locked>> | 84% | 57,551 psi | 90% | 3409 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,884 psi | 89% | 3455 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,682 psi | 90% | 3468 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,737 psi | 86% | 3438 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,710 psi | 89% | 3533 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 82% | 56,811 psi | 89% | 3497 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,057 psi | 88% | 3455 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,941 psi | 88% | 3530 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 3524 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,985 psi | 89% | 3497 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,464 psi | 90% | 3550 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,650 psi | 86% | 3543 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,496 psi | 67% | 3445 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,362 psi | 88% | 3520 fps | 100% |
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% | 47,645 psi | 75% | 3291 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,765 psi | 83% | 3386 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 43,482 psi | 68% | 3255 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 45,063 psi | 71% | 3281 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 39,030 psi | 61% | 3192 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 50,618 psi | 79% | 3422 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 42,888 psi | 67% | 3232 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,692 psi | 83% | 3432 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,992 psi | 74% | 3461 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,105 psi | 68% | 3261 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,180 psi | 72% | 3340 fps | 98.2% |
| Alliant Reloder-16 | 75.5 gr | 84% | 38,101 psi | 60% | 3202 fps | 95.3% |
| Alliant Reloder-17 | 77.4 gr | 80% | 37,782 psi | 59% | 3215 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 33,678 psi | 53% | 3074 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 92% | 40,016 psi | 63% | 3307 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,488 psi | 79% | 3422 fps | 98.6% |
| Bofors RP3 | <<locked>> | 80% | 43,279 psi | 68% | 3264 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 49,705 psi | 78% | 3363 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,041 psi | 85% | 3419 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,576 psi | 82% | 3455 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,874 psi | 69% | 3271 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 88% | 47,471 psi | 74% | 3392 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 51,140 psi | 80% | 3435 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 33,025 psi | 52% | 3009 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,732 psi | 75% | 3399 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 90% | 51,140 psi | 80% | 3494 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 42% | 2057 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,023 psi | 77% | 3376 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 51,300 psi | 80% | 3435 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,034 psi | 71% | 3274 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,529 psi | 74% | 3301 fps | 95.2% |
| IMR 4350 | <<locked>> | 92% | 50,488 psi | 79% | 3392 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 48,240 psi | 76% | 3340 fps | 95.3% |
| IMR 4831 | <<locked>> | 84% | 37,536 psi | 59% | 3133 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 47,355 psi | 74% | 3376 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 52,692 psi | 83% | 3432 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 50,792 psi | 80% | 3399 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,821 psi | 78% | 3346 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 45,281 psi | 71% | 3284 fps | 99.3% |
| Lovex S065 | <<locked>> | 84% | 42,424 psi | 66% | 3205 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 46,108 psi | 72% | 3304 fps | 95% |
| Norma 201 | <<locked>> | 80% | 49,472 psi | 78% | 3363 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 50,038 psi | 78% | 3373 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,542 psi | 71% | 3323 fps | 98.5% |
| Norma MRP | <<locked>> | 98% | 49,342 psi | 77% | 3501 fps | 95.6% |
| Norma URP | <<locked>> | 84% | 38,928 psi | 61% | 3189 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 45,759 psi | 72% | 3340 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 88% | 43,410 psi | 68% | 3304 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 53,040 psi | 83% | 3438 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,997 psi | 83% | 3461 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,151 psi | 43% | 2103 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 47,152 psi | 74% | 3317 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,545 psi | 78% | 3474 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,161 psi | 63% | 3301 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 38,899 psi | 61% | 3202 fps | 95% |
| ReloadSwiss RS 70 | 84.5 gr | 86% | 41,017 psi | 64% | 3284 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 53,432 psi | 84% | 3419 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,123 psi | 74% | 3304 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 40,654 psi | 64% | 3196 fps | 98% |
| Rottweil R 907 | <<locked>> | 88% | 49,705 psi | 78% | 3363 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 84% | 42,424 psi | 66% | 3205 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,792 psi | 80% | 3399 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,281 psi | 71% | 3284 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 88% | 46,108 psi | 72% | 3304 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,800 psi | 66% | 3251 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,692 psi | 81% | 3409 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,211 psi | 77% | 3379 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,372 psi | 79% | 3310 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,351 psi | 66% | 3136 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 47,863 psi | 75% | 3271 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 50,198 psi | 79% | 3304 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,343 psi | 80% | 3399 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 41,162 psi | 65% | 3199 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 30,414 psi | 48% | 2982 fps | 95.5% |
| Somchem S385 | <<locked>> | 96% | 49,081 psi | 77% | 3379 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 50,807 psi | 80% | 3297 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,949 psi | 74% | 3284 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,427 psi | 74% | 3287 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,262 psi | 62% | 3123 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 40,451 psi | 63% | 3192 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 53,069 psi | 83% | 3432 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,948 psi | 72% | 3271 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 40,016 psi | 63% | 3189 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 37,231 psi | 58% | 3176 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,896 psi | 55% | 3018 fps | 96.4% |
| Winchester 748 | <<locked>> | 80% | 53,722 psi | 84% | 3484 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 47,645 psi | 75% | 3396 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 32,140 psi | 50% | 3100 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,124 psi | 77% | 3383 fps | 99.4% |
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 112 powders for .300 Norma Mag. loaded with the .308 | 115gr | Lehigh Defense Controlled Chaos. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,661 fps; across all powders the maximum-charge window runs from 2,287 fps to 3,661 fps. Accurate 3100 gives the best case fill at 100 %, and 112 of the 112 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 115.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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-16, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for .300 Norma Mag. with the .308 | 115gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Alliant Reloder-22 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.