Load Specifications
Load data in caliber 7 mm Exp. Rem. with .284 | 175gr | Speer Grand Slam bullet and 76 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 ReloadSwiss RS 70.
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 2700 | <<locked>> | 82% | 52,170 psi | 89% | 2467 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,692 psi | 90% | 2552 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 51,605 psi | 88% | 2461 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 51,634 psi | 88% | 2549 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 51,721 psi | 88% | 2487 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,678 psi | 90% | 2589 fps | 97.7% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 52,446 psi | 89% | 2582 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,330 psi | 89% | 2507 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,344 psi | 89% | 2520 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,620 psi | 90% | 2602 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 49,922 psi | 85% | 2572 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 51,750 psi | 88% | 2575 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,359 psi | 89% | 2625 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,429 psi | 84% | 2569 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,091 psi | 73% | 2497 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,678 psi | 90% | 2690 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,979 psi | 82% | 2556 fps | 96.8% |
| Bofors RP3 | <<locked>> | 84% | 52,837 psi | 90% | 2516 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,359 psi | 89% | 2625 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 52,431 psi | 89% | 2503 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 49,893 psi | 85% | 2484 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 88% | 50,270 psi | 86% | 2543 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 86% | 50,430 psi | 86% | 2507 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 52,765 psi | 90% | 2536 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 49,908 psi | 85% | 2572 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,332 psi | 62% | 1565 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,068 psi | 87% | 2467 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 49,995 psi | 85% | 2487 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 50,734 psi | 86% | 2480 fps | 98.6% |
| IMR 4831 | <<locked>> | 92% | 51,982 psi | 88% | 2539 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,330 psi | 89% | 2523 fps | 95.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,242 psi | 87% | 2605 fps | 96.2% |
| Lovex S062 | <<locked>> | 82% | 51,300 psi | 87% | 2464 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 50,734 psi | 86% | 2480 fps | 99.4% |
| Lovex S070 | <<locked>> | 90% | 51,793 psi | 88% | 2513 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,034 psi | 75% | 2418 fps | 98.3% |
| Norma 203B | <<locked>> | 82% | 51,677 psi | 88% | 2507 fps | 100% |
| Norma 204 | <<locked>> | 90% | 50,299 psi | 86% | 2530 fps | 97.1% |
| Norma MRP | <<locked>> | 98% | 51,750 psi | 88% | 2648 fps | 98.9% |
| Norma URP | <<locked>> | 90% | 50,430 psi | 86% | 2533 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 52,083 psi | 89% | 2533 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,285 psi | 87% | 2615 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 92% | 52,620 psi | 90% | 2585 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,542 psi | 78% | 2500 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,130 psi | 63% | 1604 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,997 psi | 90% | 2516 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,069 psi | 90% | 2615 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,242 psi | 87% | 2569 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 49,922 psi | 85% | 2589 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,105 psi | 72% | 2513 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 82% | 53,127 psi | 90% | 2470 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 52,982 psi | 90% | 2516 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 50,908 psi | 87% | 2510 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 96% | 50,923 psi | 87% | 2559 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 88% | 52,431 psi | 89% | 2503 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 50,734 psi | 86% | 2480 fps | 99.4% |
| Shooters World Precision | <<locked>> | 82% | 51,300 psi | 87% | 2464 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 51,793 psi | 88% | 2513 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 50,966 psi | 87% | 2520 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 50,879 psi | 87% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,386 psi | 86% | 2438 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,459 psi | 86% | 2556 fps | 97.5% |
| Somchem S355 | <<locked>> | 86% | 53,098 psi | 90% | 2513 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 53,113 psi | 90% | 2589 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 51,721 psi | 88% | 2543 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 86% | 50,908 psi | 87% | 2448 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,620 psi | 90% | 2533 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,836 psi | 87% | 2520 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 82% | 51,866 psi | 88% | 2448 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,576 psi | 88% | 2533 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 52,054 psi | 89% | 2592 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,214 psi | 89% | 2638 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 51,909 psi | 88% | 2507 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,575 psi | 86% | 2546 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,672 psi | 76% | 2621 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,459 psi | 88% | 2533 fps | 97.4% |
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 2700 | <<locked>> | 80% | 48,689 psi | 83% | 2411 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 32,924 psi | 56% | 2201 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,356 psi | 82% | 2415 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,651 psi | 62% | 2290 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 45,759 psi | 78% | 2392 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,308 psi | 74% | 2428 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,453 psi | 74% | 2431 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,035 psi | 78% | 2411 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,110 psi | 84% | 2474 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,926 psi | 61% | 2300 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,625 psi | 69% | 2415 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,975 psi | 73% | 2421 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,004 psi | 73% | 2467 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,353 psi | 45% | 2083 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,649 psi | 57% | 2287 fps | 95.7% |
| Alliant Reloder-26 | 49.1 gr | 84% | 31,894 psi | 54% | 2283 fps | 95.9% |
| Bofors RP15 | <<locked>> | 96% | 42,424 psi | 72% | 2454 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 46,311 psi | 79% | 2421 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,004 psi | 73% | 2467 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 40,828 psi | 70% | 2306 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 46,775 psi | 80% | 2434 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,740 psi | 66% | 2336 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,640 psi | 71% | 2352 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,417 psi | 57% | 2208 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 80% | 37,594 psi | 64% | 2343 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 46% | 1398 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,153 psi | 82% | 2421 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 39,015 psi | 66% | 2290 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,250 psi | 72% | 2336 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,230 psi | 60% | 2251 fps | 97.7% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,168 psi | 84% | 2474 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 47,950 psi | 82% | 2549 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 48,399 psi | 82% | 2421 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,856 psi | 68% | 2293 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 38,159 psi | 65% | 2274 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 33,953 psi | 58% | 2224 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 48,472 psi | 83% | 2461 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,816 psi | 75% | 2418 fps | 95.4% |
| Norma MRP | 50 gr | 88% | 36,999 psi | 63% | 2372 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 36,666 psi | 62% | 2290 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 48,878 psi | 83% | 2484 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 47,848 psi | 81% | 2559 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 35,520 psi | 60% | 2277 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 39,479 psi | 67% | 2385 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,847 psi | 47% | 1434 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,804 psi | 80% | 2418 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,178 psi | 74% | 2464 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,332 psi | 62% | 2306 fps | 97.7% |
| ReloadSwiss RS 70 | 46.4 gr | 80% | 35,476 psi | 60% | 2313 fps | 96.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,218 psi | 67% | 2451 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 50,140 psi | 85% | 2431 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,772 psi | 75% | 2375 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 47,993 psi | 82% | 2461 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 41,945 psi | 71% | 2405 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 40,828 psi | 70% | 2306 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,856 psi | 68% | 2293 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 48,399 psi | 82% | 2421 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,159 psi | 65% | 2274 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,802 psi | 76% | 2425 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,165 psi | 77% | 2293 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,914 psi | 66% | 2241 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,553 psi | 71% | 2402 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 44,063 psi | 75% | 2375 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,054 psi | 56% | 2251 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 39,914 psi | 68% | 2343 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 42,119 psi | 72% | 2313 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,898 psi | 65% | 2287 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,291 psi | 67% | 2323 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 48,704 psi | 83% | 2405 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,449 psi | 64% | 2290 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 28,906 psi | 49% | 2152 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 96% | 48,892 psi | 83% | 2582 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,956 psi | 63% | 2260 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 38,740 psi | 66% | 2336 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,743 psi | 42% | 2103 fps | 95.1% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,003 psi | 72% | 2375 fps | 95% |
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 76 powders for 7 mm Exp. Rem. loaded with the .284 | 175gr | Speer Grand Slam. Alliant Reloder-26 delivers the highest muzzle velocity at 2,690 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,690 fps. Accurate 3100 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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, ReloadSwiss RS 70 rank at the top here: for 7 mm Exp. Rem. with the .284 | 175gr | Speer Grand Slam 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.