Load Specifications
Load data in caliber .358 Norma Mag. with .356 | 125gr | SNS Coated Bullets RN bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, SNPE Vectan SP 3 and Shooters World AR Plus.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 57,174 psi | 90% | 3484 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 3507 fps | 99.6% |
| Accurate 2460 | <<locked>> | 98% | 56,971 psi | 89% | 3579 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,843 psi | 66% | 3337 fps | 98.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,314 psi | 80% | 3527 fps | 96.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,314 psi | 80% | 3527 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 94% | 57,319 psi | 90% | 3491 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 92% | 54,172 psi | 85% | 3438 fps | 97.3% |
| ADI APS 450 | <<locked>> | 82% | 56,942 psi | 89% | 2749 fps | 100% |
| ADI AR 2205 | <<locked>> | 82% | 57,725 psi | 90% | 3376 fps | 100% |
| ADI AR 2207 | <<locked>> | 92% | 56,710 psi | 89% | 3550 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 55,869 psi | 88% | 3606 fps | 99% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,980 psi | 78% | 3547 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 54,259 psi | 85% | 3553 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 55,419 psi | 87% | 3507 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 56,144 psi | 88% | 3465 fps | 99.3% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 56,376 psi | 88% | 3524 fps | 96.6% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 55,869 psi | 88% | 3606 fps | 99% |
| Hodgdon H335 | <<locked>> | 94% | 55,535 psi | 87% | 3586 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 92% | 55,245 psi | 87% | 3484 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,068 psi | 50% | 2208 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 42,699 psi | 67% | 3409 fps | 97.5% |
| IMR 4198 | <<locked>> | 96% | 55,390 psi | 87% | 3533 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 55,463 psi | 87% | 3465 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 57,725 psi | 90% | 3609 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 98% | 57,305 psi | 90% | 3576 fps | 97.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 47,181 psi | 74% | 3445 fps | 95.9% |
| Lovex S053 | <<locked>> | 88% | 57,159 psi | 90% | 3455 fps | 100% |
| Norma 200 | <<locked>> | 92% | 54,375 psi | 85% | 3533 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 48,544 psi | 76% | 3455 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,923 psi | 50% | 2254 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 55,695 psi | 87% | 3501 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 57,232 psi | 90% | 3596 fps | 97.6% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 3504 fps | 97.5% |
| Shooters World AR Plus | <<locked>> | 92% | 57,725 psi | 90% | 3609 fps | 97.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 47,181 psi | 74% | 3445 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 57,217 psi | 90% | 3271 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 56,695 psi | 89% | 3606 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 55,419 psi | 87% | 3566 fps | 99.4% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 52,054 psi | 82% | 3419 fps | 97.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,669 psi | 65% | 3215 fps | 96.3% |
| Somchem S321 | <<locked>> | 98% | 54,998 psi | 86% | 3563 fps | 96% |
| Somchem S335ᴾ | <<locked>> | 100% | 50,241 psi | 79% | 3406 fps | 98.1% |
| Vihtavuori N110 | <<locked>> | 82% | 55,622 psi | 87% | 3343 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 56,710 psi | 89% | 3491 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 54,955 psi | 86% | 3488 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 3422 fps | 99.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,946 psi | 67% | 3356 fps | 98.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,890 psi | 72% | 3366 fps | 96.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 57,334 psi | 90% | 3652 fps | 97.1% |
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 1680 | <<locked>> | 80% | 43,700 psi | 68% | 3235 fps | 99.1% |
| Accurate 2015 | <<locked>> | 86% | 34,330 psi | 54% | 3084 fps | 95.8% |
| Accurate 2460 | <<locked>> | 90% | 42,931 psi | 67% | 3304 fps | 95.2% |
| Accurate 2495 | <<locked>> | 92% | 31,691 psi | 50% | 3077 fps | 95.2% |
| Accurate 2520 | <<locked>> | 96% | 44,338 psi | 69% | 3386 fps | 95.1% |
| Accurate 2520 | <<locked>> | 96% | 44,338 psi | 69% | 3386 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 37,014 psi | 58% | 3068 fps | 95% |
| Accurate LT-32 | <<locked>> | 86% | 45,034 psi | 71% | 3255 fps | 95.2% |
| ADI APS 450 | <<locked>> | 80% | 54,998 psi | 86% | 2720 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 54,215 psi | 85% | 3323 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 38,972 psi | 61% | 3215 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 39,610 psi | 62% | 3264 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 82% | 27,702 psi | 43% | 2963 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,634 psi | 51% | 3064 fps | 96.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,379 psi | 63% | 3209 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 38,029 psi | 60% | 3097 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 50,024 psi | 78% | 3402 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 88% | 37,927 psi | 59% | 3222 fps | 95% |
| Hodgdon H335 | 73.1 gr | 86% | 41,756 psi | 65% | 3307 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 82% | 40,785 psi | 64% | 3182 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,511 psi | 37% | 1978 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 37,478 psi | 59% | 3274 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 34,389 psi | 54% | 3077 fps | 97.9% |
| IMR 4227 | <<locked>> | 80% | 46,282 psi | 73% | 3301 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 46,369 psi | 73% | 3392 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 94% | 49,632 psi | 78% | 3438 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 98% | 43,888 psi | 69% | 3376 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 45,266 psi | 71% | 3251 fps | 100% |
| Norma 200 | <<locked>> | 80% | 37,101 psi | 58% | 3169 fps | 98.4% |
| Norma 202 | <<locked>> | 96% | 42,540 psi | 67% | 3327 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,366 psi | 37% | 2021 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,224 psi | 72% | 3333 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 46,862 psi | 73% | 3396 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 94% | 43,859 psi | 69% | 3323 fps | 95.5% |
| Shooters World AR Plus | 71.8 gr | 86% | 46,369 psi | 73% | 3392 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 98% | 43,888 psi | 69% | 3376 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,713 psi | 65% | 3018 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 43,033 psi | 67% | 3330 fps | 95.4% |
| SNPE Vectan SP 3 | 60.4 gr | 82% | 35,346 psi | 55% | 3130 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 43,047 psi | 67% | 3235 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 39,102 psi | 61% | 3153 fps | 95.5% |
| Somchem S321 | <<locked>> | 96% | 51,242 psi | 80% | 3494 fps | 95.2% |
| Somchem S335 | <<locked>> | 92% | 39,189 psi | 61% | 3169 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 52,547 psi | 82% | 3297 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 39,117 psi | 61% | 3173 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,517 psi | 49% | 2966 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 86% | 32,982 psi | 52% | 3012 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 92% | 33,127 psi | 52% | 3107 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 96% | 40,234 psi | 63% | 3238 fps | 95.1% |
| Winchester 748 | <<locked>> | 96% | 49,647 psi | 78% | 3504 fps | 95.4% |
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 74 powders for .358 Norma Mag. loaded with the .356 | 125gr | SNS Coated Bullets RN. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,704 fps; across all powders the maximum-charge window runs from 2,208 fps to 3,704 fps. Accurate 2015 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. Accurate 2015, Accurate 2495, Accurate 2520 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. Hodgdon H335, SNPE Vectan SP 3, Shooters World AR Plus rank at the top here: for .358 Norma Mag. with the .356 | 125gr | SNS Coated Bullets RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 4064 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.