Load Specifications
Load data in caliber .350 Rem. Mag. with .355 | 123gr | MEN FMJ RN bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World Buffalo Rifle, Lovex D060 and ReloadSwiss RS 36.
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>> | 96% | 55,042 psi | 88% | 3238 fps | 98.3% |
| Accurate 5744 | <<locked>> | 82% | 53,751 psi | 86% | 3274 fps | 98.8% |
| Accurate No. 11 FS | <<locked>> | 84% | 53,403 psi | 86% | 3215 fps | 100% |
| ADI APS 450 | <<locked>> | 82% | 54,723 psi | 88% | 2497 fps | 100% |
| ADI AR 2205 | <<locked>> | 88% | 54,418 psi | 87% | 3143 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 51,648 psi | 83% | 3297 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 42,540 psi | 68% | 3140 fps | 96.2% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 54,520 psi | 87% | 3294 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,602 psi | 47% | 1991 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 45,658 psi | 73% | 3146 fps | 97.7% |
| IMR 4227 | <<locked>> | 94% | 53,447 psi | 86% | 3235 fps | 99.7% |
| Lovex D060 | <<locked>> | 88% | 54,317 psi | 87% | 3287 fps | 98.9% |
| Lovex D063 | <<locked>> | 84% | 54,607 psi | 88% | 3261 fps | 99% |
| Lovex S040 | <<locked>> | 82% | 55,840 psi | 90% | 3156 fps | 100% |
| Lovex S053 | <<locked>> | 96% | 54,302 psi | 87% | 3235 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 3245 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,993 psi | 46% | 2034 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 96% | 55,912 psi | 90% | 3317 fps | 99.8% |
| Shooters World Blackout | <<locked>> | 84% | 54,607 psi | 88% | 3261 fps | 99% |
| Shooters World Buffalo Rifle | <<locked>> | 88% | 54,317 psi | 87% | 3287 fps | 98.9% |
| Shooters World SOCOM | <<locked>> | 88% | 55,738 psi | 89% | 3255 fps | 99.5% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 54,752 psi | 88% | 3081 fps | 100% |
| Vihtavuori N110 | <<locked>> | 90% | 53,998 psi | 87% | 3159 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 51,779 psi | 83% | 3251 fps | 100% |
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>> | 86% | 39,421 psi | 63% | 2943 fps | 95% |
| Accurate 5744 | <<locked>> | 80% | 50,589 psi | 81% | 3219 fps | 98.4% |
| Accurate No. 11 FS | <<locked>> | 80% | 46,920 psi | 75% | 3104 fps | 99.7% |
| ADI APS 450 | <<locked>> | 80% | 52,765 psi | 85% | 2467 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 42,699 psi | 68% | 2940 fps | 100% |
| ADI AR 2207 | <<locked>> | 82% | 29,283 psi | 47% | 2795 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 98% | 39,885 psi | 64% | 3081 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 88% | 37,594 psi | 60% | 2956 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,509 psi | 34% | 1781 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 36,347 psi | 58% | 2930 fps | 95% |
| IMR 4227 | <<locked>> | 80% | 35,085 psi | 56% | 2854 fps | 96.5% |
| Lovex D060 | 42.5 gr | 80% | 42,757 psi | 69% | 3054 fps | 96.9% |
| Lovex D063 | <<locked>> | 80% | 47,659 psi | 76% | 3136 fps | 98.1% |
| Lovex S040 | <<locked>> | 80% | 52,663 psi | 84% | 3110 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 34,084 psi | 55% | 2835 fps | 99% |
| Norma 200 | <<locked>> | 92% | 37,550 psi | 60% | 3012 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,161 psi | 34% | 1821 fps | 100% |
| ReloadSwiss RS 36 | 44.3 gr | 80% | 33,982 psi | 54% | 2864 fps | 95.9% |
| Shooters World Blackout | <<locked>> | 80% | 47,659 psi | 76% | 3136 fps | 98.1% |
| Shooters World Buffalo Rifle | 42.5 gr | 80% | 42,757 psi | 69% | 3054 fps | 96.9% |
| Shooters World SOCOM | <<locked>> | 80% | 42,743 psi | 69% | 3015 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 32,010 psi | 51% | 2674 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 40,190 psi | 64% | 2923 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 27,789 psi | 45% | 2713 fps | 96.5% |
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 24 powders for .350 Rem. Mag. loaded with the .355 | 123gr | MEN FMJ RN. ReloadSwiss RS 36 delivers the highest muzzle velocity at 3,317 fps; across all powders the maximum-charge window runs from 1,991 fps to 3,317 fps. ADI AR 2207 gives the best case fill at 100 %, and 24 of the 24 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 46–90 %, leaving at least 10 % headroom. ADI AR 2207, Alliant Reloder-10x, Alliant Reloder-7 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. Shooters World Buffalo Rifle, Lovex D060, ReloadSwiss RS 36 rank at the top here: for .350 Rem. Mag. with the .355 | 123gr | MEN FMJ RN they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.