Load Specifications
Load data in caliber .358 Norma Mag. with .355 | 145gr | Winchester FMJ TC bullet and 57 powders. The key underlying parameters are shown in the table above.
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>> | 86% | 55,332 psi | 87% | 3219 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 56,115 psi | 88% | 3314 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 55,230 psi | 87% | 3323 fps | 98.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,338 psi | 69% | 3173 fps | 99.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 56,014 psi | 88% | 3373 fps | 98.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,133 psi | 64% | 3123 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 92% | 55,593 psi | 87% | 3232 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 92% | 56,043 psi | 88% | 3241 fps | 98.5% |
| ADI APS 450 | <<locked>> | 82% | 57,363 psi | 90% | 2536 fps | 100% |
| ADI AR 2207 | <<locked>> | 90% | 55,666 psi | 87% | 3284 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 54,360 psi | 85% | 3346 fps | 99.4% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 3323 fps | 96.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,330 psi | 82% | 3350 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 55,637 psi | 87% | 3445 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 96% | 56,565 psi | 89% | 3350 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 57,334 psi | 90% | 3294 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 54,462 psi | 85% | 3212 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 98% | 54,969 psi | 86% | 3274 fps | 97.3% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 53,127 psi | 83% | 3346 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 96% | 56,144 psi | 88% | 3376 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 94% | 54,041 psi | 85% | 3337 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 90% | 57,696 psi | 90% | 3291 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,489 psi | 51% | 2028 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,588 psi | 78% | 3327 fps | 99.5% |
| IMR 4198 | <<locked>> | 96% | 57,508 psi | 90% | 3320 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 57,493 psi | 90% | 3248 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 55,129 psi | 86% | 3323 fps | 96.8% |
| Lovex D073.4 | <<locked>> | 90% | 56,130 psi | 88% | 3353 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 96% | 55,535 psi | 87% | 3323 fps | 97.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 49,516 psi | 78% | 3274 fps | 97.5% |
| Lovex S053 | <<locked>> | 86% | 55,956 psi | 88% | 3186 fps | 100% |
| Norma 200 | <<locked>> | 92% | 56,927 psi | 89% | 3330 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,662 psi | 79% | 3248 fps | 95.9% |
| Norma 202ᴾ | <<locked>> | 100% | 50,546 psi | 79% | 3271 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,445 psi | 51% | 2077 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 57,740 psi | 90% | 3284 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 55,593 psi | 87% | 3340 fps | 98.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 54,795 psi | 86% | 3314 fps | 98.7% |
| Shooters World AR Plus | <<locked>> | 90% | 56,130 psi | 88% | 3353 fps | 98.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 49,516 psi | 78% | 3274 fps | 97.5% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 56,811 psi | 89% | 3301 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 56,289 psi | 88% | 3012 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 54,998 psi | 86% | 3346 fps | 98.8% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 57,537 psi | 90% | 3360 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 3232 fps | 98.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,424 psi | 68% | 3045 fps | 97.8% |
| Somchem S321 | <<locked>> | 98% | 57,058 psi | 89% | 3376 fps | 97.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 52,388 psi | 82% | 3222 fps | 99.1% |
| Vihtavuori N110 | <<locked>> | 82% | 57,595 psi | 90% | 3117 fps | 100% |
| Vihtavuori N120 | <<locked>> | 90% | 55,637 psi | 87% | 3228 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 57,058 psi | 89% | 3284 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,127 psi | 83% | 3228 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,136 psi | 71% | 3179 fps | 99.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 47,877 psi | 75% | 3189 fps | 98.1% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 56,188 psi | 88% | 3333 fps | 97% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,253 psi | 72% | 3173 fps | 97.3% |
| Winchester 748ᴾ | <<locked>> | 100% | 54,186 psi | 85% | 3373 fps | 97.6% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 45,237 psi | 71% | 3045 fps | 99.7% |
| Accurate 2015 | <<locked>> | 80% | 29,675 psi | 47% | 2749 fps | 95.2% |
| Accurate 2460 | <<locked>> | 86% | 39,233 psi | 61% | 3012 fps | 95.3% |
| Accurate 2495 | <<locked>> | 88% | 29,283 psi | 46% | 2808 fps | 95.6% |
| Accurate 2520 | <<locked>> | 92% | 42,235 psi | 66% | 3117 fps | 95.8% |
| Accurate 4064 | <<locked>> | 96% | 35,926 psi | 56% | 2999 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 38,479 psi | 60% | 2897 fps | 96.8% |
| Accurate LT-32 | <<locked>> | 82% | 41,321 psi | 65% | 2959 fps | 95.4% |
| ADI APS 450 | <<locked>> | 80% | 55,288 psi | 87% | 2503 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 40,799 psi | 64% | 3025 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,114 psi | 57% | 2966 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 96% | 48,573 psi | 76% | 3205 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 27,296 psi | 43% | 2759 fps | 96.9% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 52,243 psi | 82% | 3383 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,287 psi | 54% | 2900 fps | 98% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,177 psi | 66% | 3025 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,927 psi | 58% | 2871 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 92% | 45,861 psi | 72% | 3104 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 96% | 46,122 psi | 72% | 3215 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 82% | 35,317 psi | 55% | 2943 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 84% | 38,290 psi | 60% | 3015 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 42,438 psi | 67% | 3005 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,946 psi | 38% | 1818 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 33,591 psi | 53% | 2956 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 35,781 psi | 56% | 2900 fps | 99.1% |
| IMR 4227 | <<locked>> | 80% | 47,935 psi | 75% | 3094 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 48,573 psi | 76% | 3205 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 82% | 41,989 psi | 66% | 3084 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 90% | 44,875 psi | 70% | 3130 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 94% | 40,089 psi | 63% | 3081 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 46,905 psi | 74% | 3041 fps | 100% |
| Norma 200 | <<locked>> | 80% | 38,812 psi | 61% | 2992 fps | 99.4% |
| Norma 201 | <<locked>> | 98% | 47,427 psi | 74% | 3182 fps | 95.1% |
| Norma 202 | <<locked>> | 92% | 39,015 psi | 61% | 3035 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,743 psi | 37% | 1857 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 47,993 psi | 75% | 3127 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 42,902 psi | 67% | 3094 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 88% | 38,218 psi | 60% | 2976 fps | 95% |
| Shooters World AR Plus | <<locked>> | 82% | 41,989 psi | 66% | 3084 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 94% | 40,089 psi | 63% | 3081 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 49,400 psi | 77% | 3173 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,221 psi | 68% | 2815 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 39,160 psi | 61% | 3028 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,751 psi | 54% | 2904 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 39,523 psi | 62% | 2946 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 35,882 psi | 56% | 2877 fps | 95.7% |
| Somchem S321 | <<locked>> | 92% | 46,398 psi | 73% | 3182 fps | 95.1% |
| Somchem S335 | <<locked>> | 88% | 36,114 psi | 57% | 2890 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 80% | 54,505 psi | 85% | 3074 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 40,930 psi | 64% | 2979 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,880 psi | 52% | 2802 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 82% | 30,458 psi | 48% | 2743 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 88% | 30,603 psi | 48% | 2835 fps | 95.9% |
| Vihtavuori N140 | <<locked>> | 92% | 36,985 psi | 58% | 2956 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 96% | 49,240 psi | 77% | 3209 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 94% | 38,101 psi | 60% | 2992 fps | 95.1% |
| Winchester 748 | <<locked>> | 94% | 44,164 psi | 69% | 3176 fps | 95.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 57 powders for .358 Norma Mag. loaded with the .355 | 145gr | Winchester FMJ TC. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,445 fps; across all powders the maximum-charge window runs from 2,028 fps to 3,445 fps. Accurate 2015 gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.