Load Specifications
Load data in caliber 7 mm Rem. Mag. with .284 | 148gr | TWENTY-NINE ERTP bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 54,505 psi | 87% | 2848 fps | 98.8% |
| Accurate 3100 | <<locked>> | 98% | 52,881 psi | 85% | 2894 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 54,099 psi | 87% | 2835 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,998 psi | 88% | 2946 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 53,940 psi | 86% | 3035 fps | 97.4% |
| Accurate MAGPRO | <<locked>> | 98% | 55,129 psi | 88% | 3038 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 53,780 psi | 86% | 2864 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,883 psi | 90% | 2989 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 98% | 53,388 psi | 86% | 2979 fps | 96.9% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,898 psi | 90% | 2982 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,898 psi | 90% | 2982 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,897 psi | 88% | 2890 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,810 psi | 88% | 2907 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,564 psi | 89% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,084 psi | 85% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,129 psi | 88% | 2976 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,217 psi | 90% | 3038 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,243 psi | 85% | 2963 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,296 psi | 74% | 2897 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,258 psi | 85% | 3048 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,532 psi | 83% | 2959 fps | 97.9% |
| Bofors RP3 | <<locked>> | 84% | 55,825 psi | 90% | 2907 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,217 psi | 90% | 3038 fps | 98.7% |
| Bofors RP7 | <<locked>> | 88% | 54,955 psi | 88% | 2890 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 55,840 psi | 90% | 2920 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 53,417 psi | 86% | 2940 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 86% | 53,113 psi | 85% | 2897 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 96% | 53,548 psi | 86% | 2923 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,057 psi | 90% | 2966 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,985 psi | 90% | 2920 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,266 psi | 73% | 2927 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 88% | 53,287 psi | 85% | 2972 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,463 psi | 58% | 1818 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,432 psi | 86% | 2848 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,825 psi | 90% | 2884 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 56,159 psi | 90% | 2930 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,185 psi | 85% | 2864 fps | 99.1% |
| IMR 4831 | <<locked>> | 92% | 55,317 psi | 89% | 2936 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,246 psi | 90% | 2936 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,259 psi | 89% | 2913 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,563 psi | 87% | 3012 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 53,679 psi | 86% | 2841 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,330 psi | 86% | 2864 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 54,592 psi | 88% | 2904 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,166 psi | 76% | 2799 fps | 99% |
| Norma 203B | <<locked>> | 82% | 54,157 psi | 87% | 2894 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,200 psi | 85% | 2920 fps | 97.9% |
| Norma MRP | <<locked>> | 98% | 55,956 psi | 90% | 3061 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 53,461 psi | 86% | 2927 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,911 psi | 88% | 2920 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,100 psi | 88% | 3031 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 55,796 psi | 89% | 2979 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,139 psi | 79% | 2900 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,333 psi | 60% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,883 psi | 90% | 2910 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,376 psi | 90% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,810 psi | 88% | 2966 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,084 psi | 85% | 2992 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,295 psi | 73% | 2923 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 55,448 psi | 89% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,666 psi | 89% | 2900 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,809 psi | 86% | 2900 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 96% | 54,389 psi | 87% | 2963 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 54,955 psi | 88% | 2890 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,330 psi | 86% | 2864 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 53,679 psi | 86% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,592 psi | 88% | 2904 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,635 psi | 86% | 2907 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,243 psi | 85% | 2736 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,376 psi | 90% | 2867 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,925 psi | 86% | 2956 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 55,593 psi | 89% | 2894 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,535 psi | 89% | 2894 fps | 96.6% |
| Somchem S365 | <<locked>> | 92% | 53,171 psi | 85% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,114 psi | 88% | 2936 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 55,883 psi | 90% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,188 psi | 90% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 53,330 psi | 86% | 2818 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,622 psi | 89% | 2920 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,331 psi | 87% | 2910 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 54,302 psi | 87% | 2822 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,810 psi | 88% | 2927 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,941 psi | 90% | 2992 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,173 psi | 90% | 3054 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,274 psi | 89% | 2887 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,417 psi | 86% | 2940 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,849 psi | 78% | 3031 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,274 psi | 89% | 2933 fps | 98.3% |
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% | 50,923 psi | 82% | 2789 fps | 98.3% |
| Accurate 3100 | <<locked>> | 84% | 32,967 psi | 53% | 2500 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 50,792 psi | 81% | 2785 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,899 psi | 62% | 2654 fps | 98.7% |
| Accurate High Country | 62.8 gr | 92% | 46,978 psi | 75% | 2910 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 96% | 51,300 psi | 82% | 2972 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 47,659 psi | 76% | 2759 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,004 psi | 69% | 2753 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 94% | 46,804 psi | 75% | 2858 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 43,149 psi | 69% | 2753 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 43,149 psi | 69% | 2753 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,356 psi | 78% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,445 psi | 82% | 2854 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,797 psi | 61% | 2664 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,989 psi | 69% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,670 psi | 68% | 2746 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,190 psi | 64% | 2736 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,804 psi | 45% | 2418 fps | 96.7% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,605 psi | 54% | 2598 fps | 96% |
| Alliant Reloder-26 | 56.3 gr | 80% | 29,762 psi | 48% | 2526 fps | 95% |
| Bofors RP15 | <<locked>> | 94% | 42,337 psi | 68% | 2782 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 48,762 psi | 78% | 2799 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,190 psi | 64% | 2736 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 42,844 psi | 69% | 2671 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 80% | 49,124 psi | 79% | 2812 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 40,828 psi | 65% | 2703 fps | 96.8% |
| Hodgdon H4350 | <<locked>> | 80% | 43,700 psi | 70% | 2723 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 94% | 50,111 psi | 80% | 2864 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,139 psi | 79% | 2848 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,288 psi | 57% | 2552 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,653 psi | 64% | 2792 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 39,740 psi | 64% | 2710 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 44% | 1624 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,140 psi | 80% | 2795 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,199 psi | 84% | 2825 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 38,479 psi | 62% | 2595 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,135 psi | 71% | 2700 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 37,391 psi | 60% | 2608 fps | 98.4% |
| IMR 4895 | <<locked>> | 80% | 52,794 psi | 85% | 2881 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,718 psi | 78% | 2802 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 96% | 47,776 psi | 77% | 2890 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 50,401 psi | 81% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,742 psi | 67% | 2651 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 40,016 psi | 64% | 2631 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 34,185 psi | 55% | 2530 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 50,821 psi | 81% | 2841 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,294 psi | 69% | 2736 fps | 95.6% |
| Norma MRP | 58.7 gr | 86% | 36,811 psi | 59% | 2687 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 38,711 psi | 62% | 2651 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 80% | 51,300 psi | 82% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,761 psi | 77% | 2900 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 37,405 psi | 60% | 2635 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 39,523 psi | 63% | 2707 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,905 psi | 45% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,878 psi | 78% | 2792 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,643 psi | 73% | 2844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,653 psi | 62% | 2671 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,347 psi | 60% | 2677 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,709 psi | 59% | 2713 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 52,315 psi | 84% | 2802 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,035 psi | 74% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,311 psi | 76% | 2785 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 88% | 41,669 psi | 67% | 2726 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 42,844 psi | 69% | 2671 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,742 psi | 67% | 2651 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 50,401 psi | 81% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,016 psi | 64% | 2631 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,992 psi | 75% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,992 psi | 75% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,712 psi | 65% | 2592 fps | 96.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,307 psi | 66% | 2720 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 46,151 psi | 74% | 2743 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,602 psi | 78% | 2779 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 35,244 psi | 57% | 2608 fps | 99.8% |
| Somchem S385 | <<locked>> | 84% | 37,275 psi | 60% | 2598 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 52,605 psi | 84% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,779 psi | 85% | 2776 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,150 psi | 71% | 2671 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,972 psi | 64% | 2644 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 39,117 psi | 63% | 2631 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 51,010 psi | 82% | 2772 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,537 psi | 63% | 2648 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,748 psi | 49% | 2493 fps | 96.8% |
| Vihtavuori N560 | <<locked>> | 94% | 49,023 psi | 79% | 2927 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,059 psi | 63% | 2615 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 41,060 psi | 66% | 2707 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,526 psi | 39% | 2382 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,742 psi | 67% | 2694 fps | 95.3% |
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 88 powders for 7 mm Rem. Mag. loaded with the .284 | 148gr | TWENTY-NINE ERTP. Norma MRP delivers the highest muzzle velocity at 3,061 fps; across all powders the maximum-charge window runs from 1,818 fps to 3,061 fps. Alliant Reloder-22 gives the best case fill at 100 %, and 88 of the 88 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 148.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-22, Alliant Reloder-23, Alliant Reloder-25 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, Accurate High Country, Norma MRP rank at the top here: for 7 mm Rem. Mag. with the .284 | 148gr | TWENTY-NINE ERTP 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.