Load Specifications
Bullet Manufacturer:Swift
Bullet Weight:100 gr
Bullet Diameter:0.257"
Bullet Length:<<locked>>
Caliber:.250 Savage load data
Case Length (l3):1.912"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:45.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:52,939 psi
Recommended Twist Rate:1:9.5
Load data in caliber .250 Savage with .257 | 100gr | Swift Scirocco bullet and 143 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, IMR 4895 and Hodgdon BL-C2.
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 2015 | <<locked>> | 88% | 46,485 psi | 88% | 2743 fps | 100% |
| Accurate 2015 | <<locked>> | 88% | 47,326 psi | 89% | 2766 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 47,529 psi | 90% | 2792 fps | 99.6% |
| Accurate 2460 | <<locked>> | 84% | 45,745 psi | 86% | 2776 fps | 99.5% |
| Accurate 2495 | <<locked>> | 94% | 45,353 psi | 86% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 47,036 psi | 89% | 2818 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 45,194 psi | 85% | 2792 fps | 99.2% |
| Accurate 2520 | <<locked>> | 88% | 46,746 psi | 88% | 2828 fps | 99.4% |
| Accurate 4064 | <<locked>> | 96% | 45,179 psi | 85% | 2815 fps | 99.7% |
| Accurate 4064 | <<locked>> | 96% | 46,760 psi | 88% | 2848 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 82% | 47,398 psi | 90% | 2694 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 47,790 psi | 90% | 2710 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 90% | 45,324 psi | 86% | 2792 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 90% | 46,760 psi | 88% | 2828 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 96% | 46,137 psi | 87% | 2782 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 96% | 47,500 psi | 90% | 2818 fps | 96.5% |
| ADI AR 2219 | <<locked>> | 82% | 46,325 psi | 88% | 2795 fps | 99.9% |
| ADI AR 2219 | <<locked>> | 82% | 47,587 psi | 90% | 2828 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 47,906 psi | 90% | 2808 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 46,079 psi | 87% | 2789 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 90% | 46,369 psi | 88% | 2818 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 47,761 psi | 90% | 2844 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 46,949 psi | 89% | 2887 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 47,834 psi | 90% | 2858 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 46,296 psi | 87% | 2841 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 84% | 46,528 psi | 88% | 2756 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 47,877 psi | 90% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 45,614 psi | 86% | 2818 fps | 96.1% |
| Alliant Reloder-15 | <<locked>> | 94% | 47,036 psi | 89% | 2854 fps | 96.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,295 psi | 86% | 2884 fps | 96.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,702 psi | 88% | 2927 fps | 97.4% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 46,209 psi | 87% | 2687 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 47,137 psi | 89% | 2713 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 47,659 psi | 90% | 2844 fps | 95.8% |
| Bofors RP3 | <<locked>> | 98% | 47,355 psi | 89% | 2861 fps | 98.1% |
| Bofors RP3 | <<locked>> | 96% | 45,788 psi | 86% | 2844 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 88% | 47,427 psi | 90% | 2756 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 86% | 45,687 psi | 86% | 2736 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 90% | 45,934 psi | 87% | 2828 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 90% | 47,311 psi | 89% | 2864 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 47,355 psi | 89% | 2907 fps | 96.4% |
| Hodgdon CFE223 | <<locked>> | 86% | 45,469 psi | 86% | 2884 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 84% | 45,455 psi | 86% | 2779 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 84% | 46,731 psi | 88% | 2812 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 45,992 psi | 87% | 2795 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 84% | 47,485 psi | 90% | 2831 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 90% | 45,585 psi | 86% | 2802 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 90% | 47,050 psi | 89% | 2841 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 46,702 psi | 88% | 2874 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 45,136 psi | 85% | 2858 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,750 psi | 64% | 1749 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,837 psi | 64% | 1762 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 47,021 psi | 89% | 2808 fps | 97.4% |
| Hodgdon VARGET | <<locked>> | 90% | 45,585 psi | 86% | 2795 fps | 97.3% |
| IMR 3031 | <<locked>> | 92% | 46,833 psi | 88% | 2861 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 45,571 psi | 86% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 45,585 psi | 86% | 2762 fps | 96.1% |
| IMR 4064 | <<locked>> | 94% | 46,949 psi | 89% | 2802 fps | 96.6% |
| IMR 4198 | <<locked>> | 84% | 47,384 psi | 90% | 2726 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 45,876 psi | 87% | 2713 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 46,731 psi | 88% | 2854 fps | 97% |
| IMR 4895 | <<locked>> | 92% | 45,295 psi | 86% | 2838 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 90% | 47,906 psi | 90% | 2808 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 88% | 46,079 psi | 87% | 2789 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 86% | 47,398 psi | 90% | 2795 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 84% | 45,629 psi | 86% | 2776 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 92% | 46,340 psi | 88% | 2825 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 92% | 47,877 psi | 90% | 2861 fps | 99.5% |
| Lovex S060 | <<locked>> | 90% | 46,282 psi | 87% | 2730 fps | 96.8% |
| Lovex S060 | <<locked>> | 90% | 47,703 psi | 90% | 2769 fps | 97.3% |
| Lovex S062 | <<locked>> | 96% | 47,718 psi | 90% | 2822 fps | 98.4% |
| Lovex S062 | <<locked>> | 94% | 46,267 psi | 87% | 2805 fps | 98.3% |
| Norma 201 | <<locked>> | 92% | 47,123 psi | 89% | 2795 fps | 98.2% |
| Norma 201 | <<locked>> | 90% | 45,716 psi | 86% | 2782 fps | 98.1% |
| Norma 202 | <<locked>> | 92% | 47,282 psi | 89% | 2815 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 45,498 psi | 86% | 2795 fps | 99.6% |
| Norma 203B | <<locked>> | 96% | 47,688 psi | 90% | 2858 fps | 97.2% |
| Norma 203B | <<locked>> | 94% | 46,166 psi | 87% | 2841 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 94% | 45,049 psi | 85% | 2822 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 94% | 46,224 psi | 87% | 2858 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 90% | 47,166 psi | 89% | 2831 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 45,237 psi | 85% | 2808 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 46,151 psi | 87% | 2753 fps | 96.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 47,456 psi | 90% | 2789 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,779 psi | 64% | 1788 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,243 psi | 65% | 1808 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 47,790 psi | 90% | 2805 fps | 99.2% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 46,050 psi | 87% | 2785 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 47,790 psi | 90% | 2927 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 46,209 psi | 87% | 2910 fps | 96.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 45,092 psi | 85% | 2897 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 46,557 psi | 88% | 2940 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 88% | 45,484 psi | 86% | 2749 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 88% | 46,659 psi | 88% | 2782 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 94% | 47,297 psi | 89% | 2789 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 92% | 45,919 psi | 87% | 2779 fps | 98.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,297 psi | 89% | 2851 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 98% | 45,658 psi | 86% | 2835 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 92% | 46,340 psi | 88% | 2825 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 92% | 47,877 psi | 90% | 2861 fps | 99.5% |
| Shooters World Precision | <<locked>> | 96% | 47,718 psi | 90% | 2822 fps | 98.4% |
| Shooters World Precision | <<locked>> | 94% | 46,267 psi | 87% | 2805 fps | 98.3% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 47,659 psi | 90% | 2766 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 45,788 psi | 86% | 2743 fps | 97.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 47,036 psi | 89% | 2805 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 46,485 psi | 88% | 2858 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 47,630 psi | 90% | 2890 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 46,615 psi | 88% | 2717 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 45,397 psi | 86% | 2749 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 46,804 psi | 88% | 2812 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 44,933 psi | 85% | 2792 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 46,833 psi | 88% | 2717 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 45,078 psi | 85% | 2700 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 45,890 psi | 87% | 2710 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 46,891 psi | 89% | 2740 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 45,455 psi | 86% | 2789 fps | 98.1% |
| Somchem S321 | <<locked>> | 86% | 46,905 psi | 89% | 2825 fps | 98.5% |
| Somchem S335 | <<locked>> | 90% | 45,672 psi | 86% | 2717 fps | 99.8% |
| Somchem S335 | <<locked>> | 90% | 47,094 psi | 89% | 2749 fps | 99.9% |
| Somchem S341 | <<locked>> | 90% | 45,368 psi | 86% | 2772 fps | 96.4% |
| Somchem S341 | <<locked>> | 90% | 46,659 psi | 88% | 2808 fps | 96.9% |
| Somchem S355 | <<locked>> | 98% | 45,382 psi | 86% | 2802 fps | 97.1% |
| Somchem S355 | <<locked>> | 98% | 46,775 psi | 88% | 2838 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 86% | 46,630 psi | 88% | 2703 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 45,063 psi | 85% | 2687 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 46,615 psi | 88% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 47,776 psi | 90% | 2746 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 45,730 psi | 86% | 2782 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 47,427 psi | 90% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 47,790 psi | 90% | 2795 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 92% | 45,876 psi | 87% | 2776 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,731 psi | 88% | 2792 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 98% | 45,078 psi | 85% | 2776 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 88% | 45,034 psi | 85% | 2753 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 88% | 46,499 psi | 88% | 2792 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 94% | 45,818 psi | 87% | 2779 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 94% | 47,500 psi | 90% | 2822 fps | 99.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,757 psi | 81% | 2710 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,266 psi | 84% | 2756 fps | 96.8% |
| Winchester 748 | <<locked>> | 90% | 46,702 psi | 88% | 2848 fps | 98.9% |
| Winchester 748 | <<locked>> | 88% | 44,860 psi | 85% | 2828 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 92% | 45,948 psi | 87% | 2818 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 92% | 47,282 psi | 89% | 2854 fps | 97.8% |
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 2015 | <<locked>> | 80% | 35,882 psi | 68% | 2543 fps | 99.6% |
| Accurate 2015 | <<locked>> | 80% | 37,130 psi | 70% | 2579 fps | 99.8% |
| Accurate 2460 | <<locked>> | 80% | 38,885 psi | 73% | 2635 fps | 98.4% |
| Accurate 2460 | <<locked>> | 80% | 40,045 psi | 76% | 2667 fps | 98.7% |
| Accurate 2495 | <<locked>> | 80% | 28,616 psi | 54% | 2431 fps | 98.5% |
| Accurate 2495 | <<locked>> | 80% | 29,472 psi | 56% | 2464 fps | 98.8% |
| Accurate 2520 | <<locked>> | 80% | 34,200 psi | 65% | 2569 fps | 96.8% |
| Accurate 2520 | <<locked>> | 80% | 35,273 psi | 67% | 2602 fps | 97.3% |
| Accurate 4064 | <<locked>> | 80% | 27,079 psi | 51% | 2402 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 27,920 psi | 53% | 2434 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 44,556 psi | 84% | 2644 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 44,860 psi | 85% | 2657 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 40,045 psi | 76% | 2684 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 86% | 41,075 psi | 78% | 2717 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 94% | 43,352 psi | 82% | 2726 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 92% | 42,032 psi | 79% | 2713 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 43,410 psi | 82% | 2743 fps | 99.7% |
| ADI AR 2219 | <<locked>> | 80% | 44,643 psi | 84% | 2776 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 37,362 psi | 71% | 2598 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,795 psi | 68% | 2572 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,315 psi | 63% | 2572 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 34,229 psi | 65% | 2602 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,901 psi | 77% | 2766 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,970 psi | 70% | 2644 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,694 psi | 67% | 2625 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,191 psi | 78% | 2661 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,235 psi | 80% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 42,873 psi | 81% | 2762 fps | 95.3% |
| Alliant Reloder-15 | <<locked>> | 90% | 41,597 psi | 79% | 2749 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 42,177 psi | 80% | 2818 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 40,611 psi | 77% | 2799 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,163 psi | 82% | 2635 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,121 psi | 83% | 2661 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 44,483 psi | 84% | 2785 fps | 95% |
| Bofors RP3 | <<locked>> | 90% | 36,376 psi | 69% | 2644 fps | 95.2% |
| Bofors RP3 | <<locked>> | 88% | 35,085 psi | 66% | 2621 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,159 psi | 70% | 2549 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,203 psi | 72% | 2585 fps | 96.9% |
| Hodgdon BL-C2 | 31.7 gr | 82% | 34,983 psi | 66% | 2602 fps | 95.7% |
| Hodgdon BL-C2 | 30.9 gr | 80% | 33,489 psi | 63% | 2575 fps | 95.4% |
| Hodgdon CFE223 | <<locked>> | 86% | 44,077 psi | 83% | 2841 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 84% | 42,366 psi | 80% | 2818 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 39,508 psi | 75% | 2667 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 40,756 psi | 77% | 2703 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 40,176 psi | 76% | 2684 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 80% | 41,249 psi | 78% | 2717 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 84% | 37,782 psi | 71% | 2641 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 84% | 38,856 psi | 73% | 2677 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 38,464 psi | 73% | 2703 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 37,028 psi | 70% | 2684 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,903 psi | 47% | 1562 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,193 psi | 48% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 38,943 psi | 74% | 2648 fps | 95.3% |
| Hodgdon VARGET | <<locked>> | 84% | 37,565 psi | 71% | 2628 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 31,633 psi | 60% | 2546 fps | 98.4% |
| IMR 3031 | <<locked>> | 80% | 32,779 psi | 62% | 2582 fps | 98.8% |
| IMR 4064 | <<locked>> | 92% | 43,149 psi | 82% | 2717 fps | 95.4% |
| IMR 4064 | <<locked>> | 90% | 41,510 psi | 78% | 2697 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 42,366 psi | 80% | 2641 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 43,018 psi | 81% | 2664 fps | 100% |
| IMR 4895 | 32.7 gr | 90% | 41,133 psi | 78% | 2743 fps | 95.6% |
| IMR 4895 | 31.9 gr | 88% | 39,668 psi | 75% | 2723 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 82% | 37,362 psi | 71% | 2598 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 35,795 psi | 68% | 2572 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 80% | 38,537 psi | 73% | 2625 fps | 97.2% |
| Lovex D073.5 | <<locked>> | 80% | 39,595 psi | 75% | 2661 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 30,705 psi | 58% | 2493 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 80% | 31,763 psi | 60% | 2530 fps | 96.1% |
| Lovex S060 | <<locked>> | 86% | 41,336 psi | 78% | 2635 fps | 95.5% |
| Lovex S060 | <<locked>> | 84% | 39,871 psi | 75% | 2618 fps | 95.3% |
| Lovex S062 | <<locked>> | 86% | 35,143 psi | 66% | 2566 fps | 95.1% |
| Lovex S062 | <<locked>> | 86% | 36,201 psi | 68% | 2602 fps | 95.7% |
| Norma 201 | <<locked>> | 84% | 36,622 psi | 69% | 2585 fps | 95.6% |
| Norma 201 | <<locked>> | 82% | 35,476 psi | 67% | 2566 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 32,213 psi | 61% | 2503 fps | 96.8% |
| Norma 202 | <<locked>> | 80% | 33,301 psi | 63% | 2539 fps | 97.4% |
| Norma 203B | <<locked>> | 90% | 39,494 psi | 75% | 2697 fps | 95% |
| Norma 203B | <<locked>> | 90% | 40,857 psi | 77% | 2736 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 92% | 41,989 psi | 79% | 2759 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 90% | 40,654 psi | 77% | 2746 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 41,278 psi | 78% | 2717 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 39,740 psi | 75% | 2694 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 40,596 psi | 77% | 2644 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 82% | 41,872 psi | 79% | 2680 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,063 psi | 47% | 1601 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,338 psi | 48% | 1617 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,218 psi | 74% | 2641 fps | 97.7% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,335 psi | 76% | 2674 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 44,773 psi | 85% | 2871 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 42,989 psi | 81% | 2844 fps | 95.5% |
| ReloadSwiss RS 60 | 33.5 gr | 90% | 34,969 psi | 66% | 2657 fps | 95.9% |
| ReloadSwiss RS 60 | 33.5 gr | 88% | 33,605 psi | 63% | 2635 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 36,100 psi | 68% | 2556 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 80% | 36,941 psi | 70% | 2585 fps | 98% |
| Rottweil R 902 | <<locked>> | 86% | 37,130 psi | 70% | 2589 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 84% | 35,926 psi | 68% | 2569 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 94% | 38,754 psi | 73% | 2687 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 92% | 37,333 psi | 71% | 2667 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,705 psi | 58% | 2493 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,763 psi | 60% | 2530 fps | 96.1% |
| Shooters World Precision | <<locked>> | 86% | 35,143 psi | 66% | 2566 fps | 95.1% |
| Shooters World Precision | <<locked>> | 86% | 36,201 psi | 68% | 2602 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,582 psi | 79% | 2651 fps | 96.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,627 psi | 81% | 2684 fps | 97% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,845 psi | 83% | 2746 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 40,741 psi | 77% | 2743 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 41,901 psi | 79% | 2779 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,069 psi | 64% | 2480 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,946 psi | 81% | 2707 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 41,046 psi | 78% | 2700 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 39,537 psi | 75% | 2680 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,185 psi | 65% | 2467 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,317 psi | 67% | 2503 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,688 psi | 52% | 2323 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,674 psi | 54% | 2359 fps | 96.8% |
| Somchem S321 | <<locked>> | 80% | 37,072 psi | 70% | 2615 fps | 96% |
| Somchem S321 | <<locked>> | 80% | 38,072 psi | 72% | 2648 fps | 96.6% |
| Somchem S335 | <<locked>> | 80% | 33,837 psi | 64% | 2477 fps | 98.1% |
| Somchem S335 | <<locked>> | 80% | 34,577 psi | 65% | 2503 fps | 98.4% |
| Somchem S341 | <<locked>> | 88% | 42,627 psi | 81% | 2720 fps | 95.7% |
| Somchem S341 | <<locked>> | 86% | 40,959 psi | 77% | 2700 fps | 95.4% |
| Somchem S355 | <<locked>> | 94% | 39,987 psi | 76% | 2697 fps | 95.7% |
| Somchem S355 | <<locked>> | 92% | 38,827 psi | 73% | 2680 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 38,856 psi | 73% | 2566 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,103 psi | 76% | 2598 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,069 psi | 64% | 2480 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 80% | 35,230 psi | 67% | 2513 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 29,109 psi | 55% | 2438 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 30,284 psi | 57% | 2474 fps | 98.9% |
| Vihtavuori N140 | <<locked>> | 80% | 30,501 psi | 58% | 2441 fps | 96.6% |
| Vihtavuori N140 | <<locked>> | 80% | 31,270 psi | 59% | 2470 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 90% | 33,736 psi | 64% | 2533 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 88% | 32,518 psi | 61% | 2513 fps | 95% |
| Vihtavuori N530 | <<locked>> | 82% | 37,115 psi | 70% | 2592 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 35,520 psi | 67% | 2566 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 29,240 psi | 55% | 2418 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 30,182 psi | 57% | 2454 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 40,263 psi | 76% | 2661 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,682 psi | 73% | 2641 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 33,402 psi | 63% | 2566 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 34,403 psi | 65% | 2602 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 86% | 37,405 psi | 71% | 2644 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 86% | 38,638 psi | 73% | 2684 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 143 powders for .250 Savage loaded with the .257 | 100gr | Swift Scirocco. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,940 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,940 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 143 of the 143 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.257" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Alliant Reloder-17, Hodgdon TrailBoss 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. ReloadSwiss RS 60, IMR 4895, Hodgdon BL-C2 rank at the top here: for .250 Savage with the .257 | 100gr | Swift Scirocco 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.