Load Specifications
Load data in caliber 7 mm Exp. Rem. with .284 | 150gr | Barnes X BT bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Somchem S365.
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 2495 | <<locked>> | 82% | 52,402 psi | 89% | 2602 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,431 psi | 89% | 2628 fps | 96.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,979 psi | 83% | 2661 fps | 97.6% |
| Accurate 4064 | <<locked>> | 84% | 52,518 psi | 89% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,430 psi | 88% | 2720 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 86% | 51,677 psi | 88% | 2654 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 49,980 psi | 85% | 2756 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,286 psi | 89% | 2684 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,678 psi | 90% | 2700 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 94% | 51,561 psi | 88% | 2762 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 52,576 psi | 90% | 2795 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,629 psi | 78% | 2677 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,329 psi | 87% | 2844 fps | 99.3% |
| Bofors RP3 | <<locked>> | 84% | 50,082 psi | 85% | 2654 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 52,663 psi | 90% | 2667 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 84% | 50,401 psi | 86% | 2657 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 90% | 49,995 psi | 85% | 2703 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 51,909 psi | 88% | 2703 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 50,821 psi | 87% | 2697 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 52,982 psi | 90% | 2785 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,477 psi | 62% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,170 psi | 89% | 2664 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 51,198 psi | 87% | 2638 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 50,676 psi | 86% | 2612 fps | 97.1% |
| IMR 4350 | <<locked>> | 94% | 52,794 psi | 90% | 2694 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 88% | 50,981 psi | 87% | 2644 fps | 97% |
| IMR 4831 | <<locked>> | 94% | 51,561 psi | 88% | 2707 fps | 99.4% |
| IMR 4895 | <<locked>> | 82% | 50,720 psi | 86% | 2677 fps | 99.8% |
| Lovex S060 | <<locked>> | 82% | 53,098 psi | 90% | 2631 fps | 99.9% |
| Lovex S062 | <<locked>> | 84% | 51,648 psi | 88% | 2641 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 51,285 psi | 87% | 2651 fps | 98.3% |
| Lovex S070 | <<locked>> | 92% | 51,895 psi | 88% | 2680 fps | 97.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,336 psi | 70% | 2523 fps | 95.8% |
| Norma 203B | <<locked>> | 84% | 52,054 psi | 89% | 2690 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 50,691 psi | 86% | 2795 fps | 97% |
| Norma URP | <<locked>> | 92% | 49,937 psi | 85% | 2697 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 84% | 51,822 psi | 88% | 2707 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 94% | 51,750 psi | 88% | 2743 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,014 psi | 63% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 50,212 psi | 85% | 2635 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,707 psi | 90% | 2756 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,344 psi | 89% | 2795 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 50,705 psi | 86% | 2736 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 52,808 psi | 90% | 2805 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 82% | 50,879 psi | 87% | 2612 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,142 psi | 90% | 2694 fps | 100% |
| Rottweil R 907 | <<locked>> | 90% | 52,663 psi | 90% | 2667 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 51,285 psi | 87% | 2651 fps | 98.3% |
| Shooters World Precision | <<locked>> | 84% | 51,648 psi | 88% | 2641 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 51,895 psi | 88% | 2680 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 50,821 psi | 87% | 2697 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,214 psi | 89% | 2671 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 51,111 psi | 87% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 50,749 psi | 86% | 2598 fps | 97.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,968 psi | 90% | 2759 fps | 96% |
| Somchem S355 | <<locked>> | 86% | 50,067 psi | 85% | 2641 fps | 99.9% |
| Somchem S365 | <<locked>> | 96% | 51,808 psi | 88% | 2762 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,227 psi | 87% | 2697 fps | 96.6% |
| Vihtavuori N135 | <<locked>> | 82% | 50,676 psi | 86% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 50,691 psi | 86% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 50,952 psi | 87% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,098 psi | 89% | 2697 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 84% | 52,315 psi | 89% | 2631 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,503 psi | 88% | 2703 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,894 psi | 87% | 2753 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 51,619 psi | 88% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 49,995 psi | 85% | 2703 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,524 psi | 71% | 2710 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,228 psi | 89% | 2680 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 2495 | <<locked>> | 80% | 49,530 psi | 84% | 2562 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,412 psi | 79% | 2523 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 40,553 psi | 69% | 2510 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 46,775 psi | 80% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,070 psi | 60% | 2405 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 43,482 psi | 74% | 2513 fps | 98.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,630 psi | 79% | 2694 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,700 psi | 74% | 2536 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,601 psi | 79% | 2595 fps | 99.1% |
| Alliant Reloder-16 | 42 gr | 80% | 34,316 psi | 58% | 2402 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,087 psi | 65% | 2520 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 30,472 psi | 52% | 2326 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,927 psi | 63% | 2546 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 44,222 psi | 75% | 2552 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 46,891 psi | 80% | 2569 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 44,541 psi | 76% | 2552 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 44,150 psi | 75% | 2598 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,937 psi | 54% | 2313 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,485 psi | 81% | 2641 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 46,325 psi | 79% | 2664 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 46% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,066 psi | 84% | 2615 fps | 99.8% |
| IMR 4064 | <<locked>> | 80% | 45,687 psi | 78% | 2546 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,659 psi | 81% | 2559 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 46,789 psi | 80% | 2589 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,237 psi | 77% | 2543 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 33,692 psi | 57% | 2359 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 47,703 psi | 81% | 2628 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 49,937 psi | 85% | 2582 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 46,006 psi | 78% | 2546 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 38,450 psi | 65% | 2405 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 43,598 psi | 74% | 2530 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 38,972 psi | 66% | 2477 fps | 95% |
| Norma 203B | <<locked>> | 80% | 46,006 psi | 78% | 2585 fps | 99.4% |
| Norma MRP | <<locked>> | 96% | 44,788 psi | 76% | 2684 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 34,838 psi | 59% | 2398 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 45,585 psi | 78% | 2602 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 40,567 psi | 69% | 2533 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 47% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,498 psi | 76% | 2533 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,429 psi | 84% | 2703 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,306 psi | 69% | 2579 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 36,608 psi | 62% | 2464 fps | 95.8% |
| ReloadSwiss RS 70 | 48.2 gr | 84% | 38,247 psi | 65% | 2516 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 48,153 psi | 82% | 2566 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 41,887 psi | 71% | 2503 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 46,891 psi | 80% | 2569 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,450 psi | 65% | 2405 fps | 95.2% |
| Shooters World Precision | <<locked>> | 80% | 46,006 psi | 78% | 2546 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 43,598 psi | 74% | 2530 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,959 psi | 71% | 2536 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,153 psi | 84% | 2621 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,047 psi | 73% | 2425 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 42,438 psi | 72% | 2451 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 49,661 psi | 85% | 2703 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 42,148 psi | 72% | 2500 fps | 99.1% |
| Somchem S365 | 42.9 gr | 80% | 31,575 psi | 54% | 2359 fps | 97.8% |
| Somchem S385 | <<locked>> | 94% | 45,266 psi | 77% | 2592 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 47,819 psi | 81% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,950 psi | 82% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,205 psi | 68% | 2438 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 35,940 psi | 61% | 2395 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 46,398 psi | 79% | 2539 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,737 psi | 61% | 2402 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 33,214 psi | 57% | 2405 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,331 psi | 60% | 2369 fps | 97.8% |
| Winchester 760 | <<locked>> | 86% | 44,150 psi | 75% | 2598 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 30,763 psi | 52% | 2411 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,153 psi | 84% | 2635 fps | 99.9% |
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 69 powders for 7 mm Exp. Rem. loaded with the .284 | 150gr | Barnes X BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,844 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,844 fps. Accurate 3100 gives the best case fill at 100 %, and 69 of the 69 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 150.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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-16, ReloadSwiss RS 70, Somchem S365 rank at the top here: for 7 mm Exp. Rem. with the .284 | 150gr | Barnes X BT 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.