Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 142gr | Lehigh Defense Controlled Chaos bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Alliant Reloder-16.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 53,766 psi | 86% | 2890 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,753 psi | 89% | 2992 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 53,505 psi | 86% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,157 psi | 87% | 2992 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 53,200 psi | 85% | 2913 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,984 psi | 88% | 3035 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 98% | 52,692 psi | 84% | 3022 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,217 psi | 90% | 3094 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,215 psi | 87% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,157 psi | 87% | 2956 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,795 psi | 88% | 3051 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,188 psi | 90% | 3071 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,534 psi | 87% | 3022 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,593 psi | 89% | 3084 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,446 psi | 84% | 3012 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,614 psi | 73% | 2933 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,489 psi | 84% | 3094 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 2999 fps | 97.4% |
| Bofors RP3 | <<locked>> | 84% | 54,998 psi | 88% | 2956 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,593 psi | 89% | 3084 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 54,433 psi | 87% | 2940 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 55,288 psi | 89% | 2969 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,130 psi | 90% | 3041 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 55,912 psi | 90% | 3002 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,317 psi | 89% | 3009 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,201 psi | 89% | 2969 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,599 psi | 72% | 2963 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 88% | 52,547 psi | 84% | 3015 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,579 psi | 59% | 1867 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,043 psi | 90% | 2946 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,201 psi | 89% | 2930 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 55,448 psi | 89% | 2976 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,840 psi | 90% | 2966 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 54,534 psi | 87% | 2982 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,579 psi | 89% | 2986 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,418 psi | 87% | 2959 fps | 96.3% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,737 psi | 86% | 3054 fps | 96.7% |
| Lovex S062 | <<locked>> | 82% | 53,127 psi | 85% | 2894 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,173 psi | 90% | 2966 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 53,983 psi | 87% | 2953 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,354 psi | 74% | 2838 fps | 98.6% |
| Norma 203B | <<locked>> | 82% | 53,461 psi | 86% | 2943 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,202 psi | 90% | 3025 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 54,998 psi | 88% | 3107 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 56,260 psi | 90% | 3028 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,288 psi | 87% | 2969 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,404 psi | 87% | 3077 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 92% | 55,158 psi | 88% | 3028 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,443 psi | 78% | 2940 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,188 psi | 60% | 1909 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,100 psi | 88% | 2953 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,564 psi | 89% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,882 psi | 86% | 3009 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,231 psi | 90% | 3100 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,614 psi | 72% | 2959 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 54,955 psi | 88% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,129 psi | 88% | 2953 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,330 psi | 86% | 2946 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 96% | 53,737 psi | 86% | 3009 fps | 98% |
| Rottweil R 907 | <<locked>> | 88% | 54,433 psi | 87% | 2940 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,173 psi | 90% | 2966 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 53,127 psi | 85% | 2894 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,983 psi | 87% | 2953 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,069 psi | 85% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,898 psi | 90% | 2835 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,782 psi | 89% | 2913 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,272 psi | 85% | 3002 fps | 97.9% |
| Somchem S355 | <<locked>> | 86% | 55,071 psi | 88% | 2949 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,810 psi | 88% | 2936 fps | 96.1% |
| Somchem S365 | <<locked>> | 94% | 55,912 psi | 90% | 3031 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,462 psi | 87% | 2986 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 55,376 psi | 89% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,361 psi | 89% | 2874 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,304 psi | 90% | 2920 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,926 psi | 88% | 2972 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,563 psi | 86% | 2953 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 53,621 psi | 86% | 2871 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,099 psi | 87% | 2976 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,926 psi | 88% | 3038 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,274 psi | 89% | 3094 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,360 psi | 87% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,391 psi | 90% | 3048 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,703 psi | 76% | 3074 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,447 psi | 87% | 2976 fps | 97.9% |
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 2700 | <<locked>> | 80% | 50,343 psi | 81% | 2831 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 34,635 psi | 56% | 2589 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 50,227 psi | 81% | 2835 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,363 psi | 62% | 2694 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 46,992 psi | 75% | 2805 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 45,092 psi | 72% | 2848 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 49,385 psi | 79% | 2959 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,373 psi | 84% | 3031 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,630 psi | 76% | 2831 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,894 psi | 82% | 2904 fps | 100% |
| Alliant Reloder-16 | 51.9 gr | 80% | 37,202 psi | 60% | 2703 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,293 psi | 68% | 2835 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,918 psi | 72% | 2844 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,453 psi | 68% | 2838 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,441 psi | 44% | 2448 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,011 psi | 53% | 2628 fps | 95.2% |
| Alliant Reloder-26 | 58.7 gr | 82% | 31,328 psi | 50% | 2621 fps | 95.3% |
| Bofors RP15 | <<locked>> | 96% | 44,643 psi | 72% | 2881 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 48,167 psi | 77% | 2844 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,453 psi | 68% | 2838 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 42,221 psi | 68% | 2710 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,530 psi | 78% | 2858 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 40,263 psi | 65% | 2743 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 43,192 psi | 69% | 2766 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,837 psi | 83% | 2949 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,867 psi | 56% | 2595 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,843 psi | 67% | 2897 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 39,218 psi | 63% | 2749 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,340 psi | 44% | 1667 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,429 psi | 79% | 2841 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,692 psi | 83% | 2871 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,306 psi | 65% | 2687 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,685 psi | 70% | 2743 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 36,912 psi | 59% | 2648 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 52,199 psi | 84% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,184 psi | 82% | 2900 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 47,166 psi | 76% | 2930 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 49,937 psi | 80% | 2841 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,307 psi | 66% | 2694 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 39,378 psi | 63% | 2667 fps | 96.2% |
| Lovex S071 | <<locked>> | 90% | 33,562 psi | 54% | 2562 fps | 95% |
| Norma 203B | <<locked>> | 80% | 50,241 psi | 81% | 2890 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,815 psi | 69% | 2779 fps | 95% |
| Norma MRP | 61.2 gr | 88% | 38,885 psi | 62% | 2785 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 38,014 psi | 61% | 2687 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 50,778 psi | 81% | 2913 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,036 psi | 75% | 2940 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 36,840 psi | 59% | 2671 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 41,858 psi | 67% | 2808 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 45% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,515 psi | 78% | 2841 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,947 psi | 72% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,174 psi | 61% | 2713 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,970 psi | 59% | 2717 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,667 psi | 62% | 2812 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,619 psi | 83% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,266 psi | 73% | 2789 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,789 psi | 75% | 2828 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 43,932 psi | 70% | 2825 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 42,221 psi | 68% | 2710 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,307 psi | 66% | 2694 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 49,937 psi | 80% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,378 psi | 63% | 2667 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,354 psi | 74% | 2841 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,427 psi | 74% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,248 psi | 65% | 2631 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,526 psi | 70% | 2818 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 45,701 psi | 73% | 2789 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,358 psi | 82% | 2877 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 34,505 psi | 55% | 2644 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 39,102 psi | 63% | 2690 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 51,909 psi | 83% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,025 psi | 83% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,453 psi | 70% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,479 psi | 63% | 2687 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 41,118 psi | 66% | 2723 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 50,430 psi | 81% | 2822 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,001 psi | 63% | 2690 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,284 psi | 49% | 2526 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 51,793 psi | 83% | 3035 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,667 psi | 62% | 2657 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,466 psi | 65% | 2746 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,831 psi | 41% | 2474 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,150 psi | 71% | 2792 fps | 95.6% |
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 92 powders for 7 mm Rem. Mag. loaded with the .284 | 142gr | Lehigh Defense Controlled Chaos. Norma MRP delivers the highest muzzle velocity at 3,107 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,107 fps. Accurate 3100 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 142.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2217, ADI AR 2225 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. Alliant Reloder-26, Norma MRP, Alliant Reloder-16 rank at the top here: for 7 mm Rem. Mag. with the .284 | 142gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.