Load Specifications
Load data in caliber .358 Norma Mag. with .350 | 225gr | Sierra GameKing bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and ReloadSwiss RS 60.
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>> | 90% | 56,478 psi | 89% | 2690 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 56,666 psi | 89% | 2785 fps | 99.1% |
| Accurate 2460 | <<locked>> | 86% | 55,071 psi | 86% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 57,537 psi | 90% | 2753 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 56,521 psi | 89% | 2772 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 56,797 psi | 89% | 2789 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,585 psi | 71% | 2690 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 84% | 56,231 psi | 88% | 2638 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 56,710 psi | 89% | 2661 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,477 psi | 87% | 2779 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 98% | 56,318 psi | 88% | 2769 fps | 99.2% |
| ADI AR 2219 | <<locked>> | 84% | 57,174 psi | 90% | 2759 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,853 psi | 86% | 2736 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 54,520 psi | 85% | 2720 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 56,275 psi | 88% | 2838 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,984 psi | 86% | 2884 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,506 psi | 87% | 2792 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 86% | 56,420 psi | 88% | 2697 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 56,449 psi | 88% | 2812 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,571 psi | 71% | 2694 fps | 97.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,562 psi | 82% | 2848 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,521 psi | 87% | 2638 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 55,303 psi | 87% | 2792 fps | 98.8% |
| Bofors RP3 | <<locked>> | 98% | 56,043 psi | 88% | 2808 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 90% | 57,029 psi | 89% | 2723 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 57,174 psi | 90% | 2815 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,361 psi | 87% | 2854 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 55,622 psi | 87% | 2740 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 56,695 psi | 89% | 2766 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,056 psi | 85% | 2766 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 92% | 55,985 psi | 88% | 2789 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,814 psi | 66% | 2585 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,549 psi | 85% | 2815 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,693 psi | 54% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 57,464 psi | 90% | 2792 fps | 99.8% |
| IMR 3031 | <<locked>> | 92% | 55,158 psi | 86% | 2776 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,825 psi | 87% | 2756 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,869 psi | 89% | 2736 fps | 96.4% |
| IMR 4198 | <<locked>> | 86% | 56,840 psi | 89% | 2661 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 55,579 psi | 87% | 2746 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,540 psi | 68% | 2635 fps | 96.7% |
| IMR 4895 | <<locked>> | 94% | 54,346 psi | 85% | 2792 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 90% | 54,853 psi | 86% | 2736 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 55,056 psi | 86% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 54,592 psi | 86% | 2759 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,680 psi | 87% | 2710 fps | 99.5% |
| Lovex S062 | <<locked>> | 96% | 55,288 psi | 87% | 2753 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2687 fps | 96.7% |
| Norma 200 | <<locked>> | 82% | 56,260 psi | 88% | 2671 fps | 100% |
| Norma 201 | <<locked>> | 94% | 57,725 psi | 90% | 2776 fps | 100% |
| Norma 202 | <<locked>> | 92% | 54,462 psi | 85% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,535 psi | 87% | 2799 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 45,643 psi | 72% | 2684 fps | 97% |
| Ramshot Big Game | <<locked>> | 96% | 56,188 psi | 88% | 2828 fps | 99.5% |
| Ramshot TAC | <<locked>> | 90% | 55,492 psi | 87% | 2749 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,317 psi | 85% | 2766 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 88% | 56,289 psi | 88% | 2740 fps | 99.4% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,491 psi | 85% | 2723 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,824 psi | 86% | 2746 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 56,550 psi | 89% | 2877 fps | 99.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 56,130 psi | 88% | 2910 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,426 psi | 71% | 2707 fps | 96.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,644 psi | 73% | 2723 fps | 96% |
| Rottweil R 901 | <<locked>> | 90% | 55,347 psi | 87% | 2717 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,520 psi | 85% | 2723 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,608 psi | 87% | 2792 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2687 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,592 psi | 86% | 2759 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 55,288 psi | 87% | 2753 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,447 psi | 85% | 2694 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,681 psi | 89% | 2398 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 57,392 psi | 90% | 2769 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 57,740 psi | 90% | 2858 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 57,319 psi | 90% | 2717 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 57,014 psi | 89% | 2776 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 57,421 psi | 90% | 2799 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 56,594 psi | 89% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 56,028 psi | 88% | 2671 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 56,130 psi | 88% | 2772 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 55,434 psi | 87% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,623 psi | 89% | 2772 fps | 99.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 56,173 psi | 88% | 2792 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,669 psi | 64% | 2635 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 88% | 56,318 psi | 88% | 2648 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 56,449 psi | 88% | 2664 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 56,884 psi | 89% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,071 psi | 86% | 2713 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,462 psi | 85% | 2730 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,182 psi | 76% | 2687 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 90% | 55,463 psi | 87% | 2740 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 96% | 56,637 psi | 89% | 2753 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,108 psi | 74% | 2690 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,443 psi | 77% | 2677 fps | 99.2% |
| Winchester 748 | <<locked>> | 90% | 54,665 psi | 86% | 2782 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 57,014 psi | 89% | 2808 fps | 99.8% |
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% | 41,466 psi | 65% | 2470 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 53,156 psi | 83% | 2730 fps | 98.7% |
| Accurate 2460 | <<locked>> | 80% | 45,005 psi | 71% | 2566 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 34,055 psi | 53% | 2385 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,306 psi | 63% | 2520 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 32,213 psi | 50% | 2365 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 39,494 psi | 62% | 2575 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 49,908 psi | 78% | 2549 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,285 psi | 79% | 2572 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,116 psi | 60% | 2470 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 36,825 psi | 58% | 2425 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 49,850 psi | 78% | 2657 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,147 psi | 63% | 2487 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 38,986 psi | 61% | 2493 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,369 psi | 73% | 2677 fps | 98.9% |
| Alliant Power Pro 2000-MR | 63.4 gr | 84% | 39,175 psi | 61% | 2585 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,502 psi | 49% | 2343 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,050 psi | 74% | 2569 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,289 psi | 57% | 2454 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,466 psi | 63% | 2592 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,404 psi | 55% | 2507 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,805 psi | 76% | 2546 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,436 psi | 62% | 2516 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 30,705 psi | 48% | 2339 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,105 psi | 66% | 2487 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,174 psi | 60% | 2500 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,814 psi | 66% | 2625 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 80% | 45,614 psi | 71% | 2592 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,470 psi | 73% | 2615 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 41,495 psi | 65% | 2552 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 38,377 psi | 60% | 2484 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,548 psi | 54% | 2431 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,287 psi | 54% | 2441 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,730 psi | 40% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,956 psi | 58% | 2438 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 37,304 psi | 58% | 2490 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,260 psi | 57% | 2408 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 92% | 53,301 psi | 84% | 2680 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 47,543 psi | 75% | 2533 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 52,272 psi | 82% | 2697 fps | 95.3% |
| IMR 4831 | <<locked>> | 96% | 38,319 psi | 60% | 2533 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 34,824 psi | 55% | 2431 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 40,147 psi | 63% | 2487 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 44,788 psi | 70% | 2569 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 36,390 psi | 57% | 2451 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 38,943 psi | 61% | 2425 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 33,794 psi | 53% | 2369 fps | 96.6% |
| Lovex S065 | <<locked>> | 96% | 45,252 psi | 71% | 2592 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 53,069 psi | 83% | 2628 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,463 psi | 59% | 2434 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 37,449 psi | 59% | 2448 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 35,650 psi | 56% | 2444 fps | 95.7% |
| Norma URP | <<locked>> | 96% | 40,219 psi | 63% | 2579 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 35,143 psi | 55% | 2448 fps | 95.1% |
| Ramshot TAC | <<locked>> | 84% | 45,614 psi | 71% | 2589 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,088 psi | 61% | 2500 fps | 96.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,395 psi | 68% | 2533 fps | 97.6% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,991 psi | 71% | 2572 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,066 psi | 75% | 2641 fps | 95.2% |
| ReloadSwiss RS 52 | 60 gr | 82% | 37,449 psi | 59% | 2543 fps | 95.6% |
| ReloadSwiss RS 60 | 59.5 gr | 80% | 29,153 psi | 46% | 2346 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,668 psi | 62% | 2595 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 43,671 psi | 68% | 2664 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 41,220 psi | 65% | 2487 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 35,636 psi | 56% | 2388 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 33,025 psi | 52% | 2388 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,252 psi | 71% | 2592 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,390 psi | 57% | 2451 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 33,794 psi | 53% | 2369 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,616 psi | 75% | 2589 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,737 psi | 84% | 2362 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,357 psi | 79% | 2671 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,608 psi | 57% | 2487 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,674 psi | 75% | 2585 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,555 psi | 68% | 2559 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,593 psi | 57% | 2438 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,015 psi | 61% | 2405 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,053 psi | 50% | 2274 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 42,917 psi | 67% | 2562 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 38,609 psi | 61% | 2408 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 37,608 psi | 59% | 2451 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 34,098 psi | 53% | 2395 fps | 95.7% |
| Somchem S365 | <<locked>> | 90% | 29,631 psi | 46% | 2365 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 44,280 psi | 69% | 2477 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,102 psi | 61% | 2408 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,418 psi | 54% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,375 psi | 55% | 2388 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 28,529 psi | 45% | 2241 fps | 95% |
| Vihtavuori N160 | <<locked>> | 94% | 39,653 psi | 62% | 2530 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 39,972 psi | 63% | 2484 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 33,939 psi | 53% | 2372 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 96% | 41,365 psi | 65% | 2585 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,330 psi | 52% | 2362 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 38,798 psi | 61% | 2520 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,810 psi | 56% | 2441 fps | 96.4% |
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 95 powders for .358 Norma Mag. loaded with the .350 | 225gr | Sierra GameKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,910 fps. Accurate 4350 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.35" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for .358 Norma Mag. with the .350 | 225gr | Sierra GameKing 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.