Load Specifications
Load data in caliber .350 Rem. Mag. with .357 | 158gr | Fiocchi SJSP bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 and Hodgdon H335.
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: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 55,434 psi | 89% | 2972 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 51,793 psi | 83% | 2999 fps | 99.6% |
| Accurate 2460 | <<locked>> | 98% | 54,491 psi | 87% | 3058 fps | 98% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,885 psi | 64% | 2851 fps | 98.3% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,053 psi | 82% | 3041 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 94% | 55,840 psi | 90% | 2979 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 94% | 56,347 psi | 90% | 2989 fps | 97.9% |
| ADI AR 2207 | <<locked>> | 92% | 55,245 psi | 89% | 3028 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 53,867 psi | 86% | 3081 fps | 99% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 47,964 psi | 77% | 3028 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 55,782 psi | 89% | 3084 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 53,882 psi | 86% | 2992 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 54,346 psi | 87% | 2966 fps | 99.3% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 54,650 psi | 88% | 3015 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 98% | 55,288 psi | 89% | 3104 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 96% | 53,388 psi | 86% | 3071 fps | 98.1% |
| Hodgdon H4198 | <<locked>> | 90% | 54,404 psi | 87% | 2979 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,111 psi | 51% | 1837 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,498 psi | 73% | 2999 fps | 98.4% |
| IMR 4198 | <<locked>> | 96% | 53,954 psi | 87% | 3012 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 54,476 psi | 87% | 2949 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 55,622 psi | 89% | 3087 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 98% | 54,708 psi | 88% | 3058 fps | 96.9% |
| Lovex S053 | <<locked>> | 88% | 55,941 psi | 90% | 2936 fps | 100% |
| Norma 200 | <<locked>> | 94% | 56,231 psi | 90% | 3068 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 46,398 psi | 74% | 2949 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,952 psi | 51% | 1880 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 54,331 psi | 87% | 2982 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 55,056 psi | 88% | 3071 fps | 97.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,792 psi | 81% | 2995 fps | 97.5% |
| Shooters World AR Plus | <<locked>> | 92% | 55,622 psi | 89% | 3087 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 53,737 psi | 86% | 2743 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 54,331 psi | 87% | 3081 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 53,534 psi | 86% | 3041 fps | 99.4% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,241 psi | 81% | 2917 fps | 97.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,219 psi | 64% | 2743 fps | 96.2% |
| Somchem S321ᴾ | <<locked>> | 100% | 56,362 psi | 90% | 3107 fps | 96.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,573 psi | 78% | 2913 fps | 98% |
| Vihtavuori N110 | <<locked>> | 82% | 55,071 psi | 88% | 2838 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 55,201 psi | 89% | 2976 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 53,171 psi | 85% | 2979 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,269 psi | 79% | 2923 fps | 99.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,118 psi | 66% | 2864 fps | 98.4% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,048 psi | 71% | 2874 fps | 96.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 42,525 psi | 68% | 2753 fps | 99.1% |
| Accurate 2015 | <<locked>> | 84% | 31,415 psi | 50% | 2579 fps | 95.2% |
| Accurate 2460 | <<locked>> | 90% | 41,379 psi | 66% | 2825 fps | 95.2% |
| Accurate 2495 | <<locked>> | 92% | 30,298 psi | 49% | 2625 fps | 95.2% |
| Accurate 2520 | <<locked>> | 96% | 44,237 psi | 71% | 2920 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 36,477 psi | 58% | 2615 fps | 95.4% |
| Accurate LT-32 | <<locked>> | 86% | 44,150 psi | 71% | 2776 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 38,058 psi | 61% | 2733 fps | 100% |
| ADI AR 2219 | 54.8 gr | 84% | 38,493 psi | 62% | 2785 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 82% | 27,050 psi | 43% | 2526 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,937 psi | 51% | 2612 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,581 psi | 63% | 2733 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,664 psi | 56% | 2592 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 96% | 48,356 psi | 78% | 2907 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 86% | 37,521 psi | 60% | 2762 fps | 95.4% |
| Hodgdon H335 | 59.4 gr | 88% | 40,654 psi | 65% | 2831 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 40,176 psi | 64% | 2713 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,540 psi | 38% | 1640 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 35,418 psi | 57% | 2772 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 33,808 psi | 54% | 2618 fps | 98.2% |
| IMR 4227 | <<locked>> | 80% | 45,368 psi | 73% | 2802 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 44,773 psi | 72% | 2897 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 94% | 47,500 psi | 76% | 2936 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 44,527 psi | 71% | 2759 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,085 psi | 58% | 2700 fps | 98.6% |
| Norma 202 | <<locked>> | 96% | 41,017 psi | 66% | 2841 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,554 psi | 38% | 1683 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,310 psi | 73% | 2838 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 45,208 psi | 72% | 2897 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 94% | 42,482 psi | 68% | 2835 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 86% | 44,773 psi | 72% | 2897 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,249 psi | 66% | 2559 fps | 100% |
| SNPE Vectan SP 10 | 58 gr | 86% | 41,495 psi | 67% | 2841 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 34,650 psi | 56% | 2667 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 41,655 psi | 67% | 2759 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 37,768 psi | 61% | 2690 fps | 95.5% |
| Somchem S321 | <<locked>> | 98% | 52,489 psi | 84% | 3048 fps | 95.7% |
| Somchem S335 | <<locked>> | 92% | 37,898 psi | 61% | 2703 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 51,924 psi | 83% | 2795 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 38,218 psi | 61% | 2697 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,806 psi | 49% | 2523 fps | 96% |
| Vihtavuori N133 | <<locked>> | 86% | 32,213 psi | 52% | 2569 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 92% | 32,126 psi | 52% | 2654 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 96% | 38,856 psi | 62% | 2769 fps | 95.1% |
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 72 powders for .350 Rem. Mag. loaded with the .357 | 158gr | Fiocchi SJSP. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,163 fps. Accurate 2015 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 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. ADI AR 2219, SNPE Vectan SP 10, Hodgdon H335 rank at the top here: for .350 Rem. Mag. with the .357 | 158gr | Fiocchi SJSP 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.