Load Specifications
Load data in caliber 7 mm STW with .284 | 168gr | Peregrine Glider GRM bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N560.
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 3100 | <<locked>> | 92% | 58,189 psi | 87% | 2799 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 59,045 psi | 89% | 2822 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 57,276 psi | 86% | 2904 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 90% | 60,249 psi | 90% | 2894 fps | 100% |
| ADI AR 2213 | <<locked>> | 92% | 58,436 psi | 88% | 2907 fps | 99.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 56,449 psi | 85% | 2874 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 50,908 psi | 76% | 2835 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 60,350 psi | 90% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 59,683 psi | 89% | 2881 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 92% | 58,537 psi | 88% | 2897 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 94% | 60,118 psi | 90% | 2854 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 60,176 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 56,884 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 53,577 psi | 80% | 2894 fps | 97.3% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 59,321 psi | 89% | 2867 fps | 98.4% |
| Bofors RP15 | <<locked>> | 94% | 57,682 psi | 86% | 2884 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 59,654 psi | 89% | 2940 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 58,537 psi | 88% | 2897 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 56,768 psi | 85% | 2772 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 58,117 psi | 87% | 2897 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 56,797 psi | 85% | 2828 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 59,030 psi | 88% | 2838 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 57,798 psi | 87% | 2844 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 56,550 psi | 85% | 2825 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 56,652 psi | 85% | 2749 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 59,059 psi | 89% | 3012 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 57,754 psi | 87% | 2864 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,376 psi | 56% | 1778 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 59,074 psi | 89% | 2815 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 58,204 psi | 87% | 2792 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 59,335 psi | 89% | 2815 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 58,262 psi | 87% | 2822 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 56,376 psi | 85% | 2884 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,238 psi | 69% | 2746 fps | 98.7% |
| Lovex S065 | <<locked>> | 84% | 59,074 psi | 89% | 2789 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 57,392 psi | 86% | 2789 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 59,524 psi | 89% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 84% | 56,536 psi | 85% | 2822 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 46,847 psi | 70% | 2769 fps | 99.9% |
| Norma MRP | <<locked>> | 90% | 58,697 psi | 88% | 2917 fps | 100% |
| Norma URP | <<locked>> | 84% | 57,290 psi | 86% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 57,725 psi | 87% | 2910 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 86% | 60,234 psi | 90% | 2871 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 60,249 psi | 90% | 2894 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,261 psi | 57% | 1821 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 59,466 psi | 89% | 2848 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 58,160 psi | 87% | 2877 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 55,970 psi | 84% | 2946 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 59,524 psi | 89% | 2969 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 88% | 57,130 psi | 86% | 2808 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 90% | 59,393 psi | 89% | 2871 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 56,768 psi | 85% | 2772 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 59,074 psi | 89% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 57,392 psi | 86% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 58,088 psi | 87% | 2746 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 58,972 psi | 88% | 2871 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 58,595 psi | 88% | 2799 fps | 99.5% |
| Somchem S365 | <<locked>> | 86% | 58,523 psi | 88% | 2805 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 59,495 psi | 89% | 2838 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 59,205 psi | 89% | 2726 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 59,016 psi | 88% | 2795 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 59,350 psi | 89% | 2822 fps | 100% |
| Vihtavuori N170 | <<locked>> | 98% | 58,436 psi | 88% | 2841 fps | 96.6% |
| Vihtavuori N550 | <<locked>> | 84% | 58,131 psi | 87% | 2802 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 58,059 psi | 87% | 2831 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 58,276 psi | 87% | 2917 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 96% | 58,552 psi | 88% | 2904 fps | 99.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 60,089 psi | 90% | 2969 fps | 99.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 56,985 psi | 85% | 2966 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 58,697 psi | 88% | 2749 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 57,058 psi | 86% | 2831 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 59,828 psi | 90% | 2943 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 59,741 psi | 90% | 2838 fps | 100% |
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 3100 | <<locked>> | 80% | 38,435 psi | 58% | 2480 fps | 99.3% |
| Accurate 4350 | <<locked>> | 80% | 51,314 psi | 77% | 2717 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 39,914 psi | 60% | 2592 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 42,902 psi | 64% | 2612 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 80% | 38,261 psi | 57% | 2546 fps | 96% |
| ADI AR 2217 | <<locked>> | 88% | 37,159 psi | 56% | 2520 fps | 96% |
| ADI AR 2225 | <<locked>> | 84% | 29,327 psi | 44% | 2362 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 49,371 psi | 74% | 2723 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,801 psi | 64% | 2605 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,725 psi | 58% | 2552 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,420 psi | 56% | 2507 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,198 psi | 48% | 2431 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,814 psi | 63% | 2654 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 45,963 psi | 69% | 2759 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 45,876 psi | 69% | 2641 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 36,013 psi | 54% | 2490 fps | 96.5% |
| Bofors RP30 | <<locked>> | 84% | 34,156 psi | 51% | 2474 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 38,725 psi | 58% | 2552 fps | 97.5% |
| Bofors RP7 | <<locked>> | 80% | 53,243 psi | 80% | 2723 fps | 100% |
| Hodgdon H1000 | <<locked>> | 84% | 35,360 psi | 53% | 2477 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 53,026 psi | 79% | 2772 fps | 100% |
| Hodgdon H4350 | <<locked>> | 80% | 55,419 psi | 83% | 2785 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 80% | 40,843 psi | 61% | 2552 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,118 psi | 60% | 2536 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,340 psi | 69% | 2605 fps | 100% |
| Hodgdon Retumbo | 61.6 gr | 80% | 31,473 psi | 47% | 2454 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 53,606 psi | 80% | 2805 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 42% | 1591 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,660 psi | 73% | 2657 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,694 psi | 82% | 2743 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 48,617 psi | 73% | 2661 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,264 psi | 63% | 2549 fps | 96.8% |
| IMR 7828 SSC | <<locked>> | 80% | 36,912 psi | 55% | 2526 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 92% | 34,940 psi | 52% | 2510 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 52,112 psi | 78% | 2690 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,575 psi | 76% | 2690 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 33,011 psi | 49% | 2362 fps | 98% |
| Norma 204 | <<locked>> | 80% | 49,153 psi | 74% | 2703 fps | 99.3% |
| Norma 217 | <<locked>> | 88% | 30,429 psi | 46% | 2415 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 40,886 psi | 61% | 2621 fps | 99.1% |
| Norma URP | <<locked>> | 80% | 50,270 psi | 75% | 2703 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,666 psi | 55% | 2530 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 49,095 psi | 74% | 2707 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,561 psi | 49% | 2408 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,587 psi | 43% | 1631 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 51,750 psi | 78% | 2740 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,125 psi | 75% | 2762 fps | 100% |
| ReloadSwiss RS 76 | 65.9 gr | 80% | 30,487 psi | 46% | 2421 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 40,190 psi | 60% | 2638 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 44,048 psi | 66% | 2589 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 80% | 42,337 psi | 63% | 2595 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 80% | 53,243 psi | 80% | 2723 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,112 psi | 78% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,575 psi | 76% | 2690 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,053 psi | 77% | 2644 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,003 psi | 63% | 2592 fps | 98.4% |
| Somchem S361 | <<locked>> | 80% | 44,744 psi | 67% | 2579 fps | 97.3% |
| Somchem S365 | <<locked>> | 80% | 47,601 psi | 71% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,670 psi | 64% | 2572 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 80% | 55,535 psi | 83% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 51,605 psi | 77% | 2697 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,072 psi | 56% | 2451 fps | 97.6% |
| Vihtavuori N170 | <<locked>> | 96% | 54,549 psi | 82% | 2782 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 51,010 psi | 76% | 2700 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,626 psi | 62% | 2575 fps | 100% |
| Vihtavuori N560 | 63.9 gr | 80% | 40,843 psi | 61% | 2615 fps | 96.4% |
| Vihtavuori N565 | <<locked>> | 84% | 38,464 psi | 58% | 2546 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 90% | 41,713 psi | 63% | 2657 fps | 95.6% |
| Vihtavuori N570 | <<locked>> | 96% | 49,139 psi | 74% | 2835 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,039 psi | 77% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,243 psi | 80% | 2776 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 34,432 psi | 52% | 2543 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,131 psi | 59% | 2500 fps | 97.6% |
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 73 powders for 7 mm STW loaded with the .284 | 168gr | Peregrine Glider GRM. Hodgdon Retumbo delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,012 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (460 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.284" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for 7 mm STW with the .284 | 168gr | Peregrine Glider GRM 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.