Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 100gr | Barnes Solid bullet and 42 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 41,626 psi | 87% | 3038 fps | 99.9% |
| Accurate 2460 | <<locked>> | 82% | 42,554 psi | 89% | 3084 fps | 98.7% |
| Accurate 2495 | <<locked>> | 90% | 40,886 psi | 85% | 3081 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 40,480 psi | 85% | 3074 fps | 98% |
| Accurate 4064 | <<locked>> | 92% | 40,857 psi | 85% | 3107 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 84% | 40,524 psi | 85% | 3038 fps | 96.1% |
| Alliant AR-Comp | <<locked>> | 86% | 41,466 psi | 87% | 3123 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 43,221 psi | 90% | 3150 fps | 96.6% |
| Bofors RP3 | <<locked>> | 94% | 42,772 psi | 89% | 3153 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 43,047 psi | 90% | 3051 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 86% | 41,234 psi | 86% | 3110 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 82% | 43,163 psi | 90% | 3123 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 42,134 psi | 88% | 3163 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,852 psi | 71% | 2051 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 42,627 psi | 89% | 3100 fps | 95.9% |
| IMR 3031 | <<locked>> | 88% | 42,366 psi | 89% | 3169 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 40,524 psi | 85% | 3038 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 82% | 42,453 psi | 89% | 3081 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 88% | 41,727 psi | 87% | 3114 fps | 98.3% |
| Lovex S062 | <<locked>> | 90% | 40,799 psi | 85% | 3061 fps | 96.4% |
| Norma 201 | <<locked>> | 88% | 42,627 psi | 89% | 3087 fps | 96.8% |
| Norma 202 | <<locked>> | 88% | 42,786 psi | 89% | 3114 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,910 psi | 71% | 2096 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 42,815 psi | 89% | 3094 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 40,901 psi | 85% | 3182 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 84% | 41,437 psi | 87% | 3048 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 90% | 43,105 psi | 90% | 3087 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 96% | 42,656 psi | 89% | 3140 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 41,727 psi | 87% | 3114 fps | 98.3% |
| Shooters World Precision | <<locked>> | 90% | 40,799 psi | 85% | 3061 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 42,032 psi | 88% | 3005 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 41,510 psi | 87% | 3005 fps | 99.4% |
| Somchem S321 | <<locked>> | 82% | 40,712 psi | 85% | 3064 fps | 96.6% |
| Somchem S335 | <<locked>> | 86% | 41,394 psi | 86% | 3009 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 82% | 42,250 psi | 88% | 3009 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 41,887 psi | 88% | 3012 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 90% | 41,437 psi | 87% | 3084 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 42,975 psi | 90% | 3091 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 96% | 42,177 psi | 88% | 3081 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 84% | 40,553 psi | 85% | 3035 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 90% | 41,713 psi | 87% | 3074 fps | 98.7% |
| Winchester 748 | <<locked>> | 86% | 42,061 psi | 88% | 3140 fps | 97.6% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 36,825 psi | 77% | 2930 fps | 99.5% |
| Accurate 2460 | <<locked>> | 80% | 39,726 psi | 83% | 3018 fps | 98.1% |
| Accurate 2495 | <<locked>> | 80% | 29,312 psi | 61% | 2792 fps | 98.2% |
| Accurate 2520 | <<locked>> | 80% | 35,085 psi | 73% | 2943 fps | 96.5% |
| Accurate 4064 | <<locked>> | 82% | 29,588 psi | 62% | 2812 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 38,058 psi | 80% | 2982 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,852 psi | 71% | 2949 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 38,043 psi | 79% | 3031 fps | 95.1% |
| Bofors RP3 | <<locked>> | 92% | 40,045 psi | 84% | 3091 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,855 psi | 79% | 2930 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,926 psi | 75% | 2982 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 40,437 psi | 84% | 3064 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 39,363 psi | 82% | 3097 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,034 psi | 52% | 1837 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 39,813 psi | 83% | 3038 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 32,416 psi | 68% | 2927 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 82% | 38,058 psi | 80% | 2982 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 80% | 39,639 psi | 83% | 3018 fps | 97% |
| Lovex D073.6 | <<locked>> | 80% | 31,531 psi | 66% | 2861 fps | 95.1% |
| Lovex S062 | <<locked>> | 88% | 38,290 psi | 80% | 3002 fps | 95.6% |
| Norma 201 | <<locked>> | 84% | 37,652 psi | 79% | 2969 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 32,938 psi | 69% | 2874 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,961 psi | 52% | 1873 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,205 psi | 84% | 3035 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,795 psi | 75% | 3041 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 36,593 psi | 76% | 2933 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 86% | 38,029 psi | 79% | 2972 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 94% | 39,929 psi | 83% | 3077 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,531 psi | 66% | 2861 fps | 95.1% |
| Shooters World Precision | <<locked>> | 88% | 38,290 psi | 80% | 3002 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,867 psi | 73% | 2838 fps | 97% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,311 psi | 59% | 2671 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 38,014 psi | 79% | 3002 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 34,432 psi | 72% | 2844 fps | 97.8% |
| Vihtavuori N130 | <<locked>> | 80% | 39,682 psi | 83% | 2953 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,766 psi | 73% | 2851 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 29,834 psi | 62% | 2802 fps | 98.2% |
| Vihtavuori N140 | <<locked>> | 80% | 31,038 psi | 65% | 2799 fps | 96.1% |
| Vihtavuori N150 | <<locked>> | 92% | 37,057 psi | 77% | 2963 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 82% | 38,043 psi | 79% | 2976 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 29,979 psi | 63% | 2776 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 34,171 psi | 71% | 2943 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 78 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 100gr | Barnes Solid. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,219 fps; across all powders the maximum-charge window runs from 2,051 fps to 3,219 fps. Accurate 4350 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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. As outliers, Accurate 4350, ADI AR 2206H, ADI AR 2208 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.