Load Specifications
Bullet Manufacturer:MAKER
Bullet Weight:250 gr
Bullet Diameter:0.355"
Bullet Length:<<locked>>
Caliber:.358 Norma Mag. load data
Case Length (l3):2.519"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:88 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:16.5
Load data in caliber .358 Norma Mag. with .355 | 250gr | MAKER Solid Copper Expanding bullet and 106 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>> | 88% | 55,709 psi | 87% | 2523 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,186 psi | 85% | 2552 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 56,826 psi | 89% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,767 psi | 87% | 2608 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 57,203 psi | 90% | 2582 fps | 96.5% |
| Accurate 4064 | <<locked>> | 96% | 56,608 psi | 89% | 2628 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2592 fps | 98.5% |
| Accurate LT-30 | <<locked>> | 82% | 55,201 psi | 87% | 2474 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,651 psi | 87% | 2497 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,636 psi | 86% | 2615 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 55,593 psi | 87% | 2612 fps | 99.6% |
| ADI AR 2219 | <<locked>> | 82% | 56,086 psi | 88% | 2589 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 57,363 psi | 90% | 2618 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 57,609 psi | 90% | 2592 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,579 psi | 87% | 2671 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 57,624 psi | 90% | 2769 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,839 psi | 86% | 2628 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,666 psi | 87% | 2530 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 55,695 psi | 87% | 2651 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2602 fps | 98.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,535 psi | 87% | 2743 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,982 psi | 53% | 2349 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,201 psi | 85% | 2474 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,302 psi | 85% | 2628 fps | 99.3% |
| Bofors RP3 | <<locked>> | 96% | 55,405 psi | 87% | 2644 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 56,130 psi | 88% | 2612 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,970 psi | 88% | 2559 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 56,362 psi | 88% | 2648 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,592 psi | 86% | 2690 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 84% | 54,534 psi | 85% | 2569 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 55,593 psi | 87% | 2595 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 56,826 psi | 89% | 2657 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 51,953 psi | 81% | 2641 fps | 96.7% |
| Hodgdon H4350ᴾ | <<locked>> | 100% | 56,927 psi | 89% | 2661 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 90% | 55,143 psi | 86% | 2625 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,019 psi | 69% | 2490 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 57,609 psi | 90% | 2703 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 53,345 psi | 84% | 2674 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,896 psi | 55% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 56,623 psi | 89% | 2628 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 54,563 psi | 86% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,201 psi | 87% | 2595 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,724 psi | 87% | 2575 fps | 97.1% |
| IMR 4198 | <<locked>> | 84% | 55,912 psi | 88% | 2490 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,824 psi | 86% | 2595 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,282 psi | 73% | 2543 fps | 98.2% |
| IMR 4895 | <<locked>> | 94% | 57,072 psi | 89% | 2677 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 90% | 57,363 psi | 90% | 2618 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,041 psi | 85% | 2562 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 57,609 psi | 90% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,679 psi | 86% | 2546 fps | 99.8% |
| Lovex S062 | <<locked>> | 94% | 54,621 psi | 86% | 2592 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2589 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2566 fps | 96.6% |
| Norma 201 | <<locked>> | 92% | 56,811 psi | 89% | 2612 fps | 100% |
| Norma 202 | <<locked>> | 92% | 57,116 psi | 90% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,839 psi | 86% | 2638 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 48,283 psi | 76% | 2589 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 94% | 55,274 psi | 87% | 2664 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,587 psi | 75% | 2579 fps | 96.6% |
| Ramshot TAC | <<locked>> | 88% | 54,230 psi | 85% | 2585 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 90% | 57,145 psi | 90% | 2654 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,998 psi | 86% | 2575 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,375 psi | 55% | 1588 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 57,058 psi | 89% | 2602 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 57,334 psi | 90% | 2638 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,941 psi | 88% | 2713 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,274 psi | 87% | 2743 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,138 psi | 75% | 2612 fps | 98.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,124 psi | 77% | 2635 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 88% | 54,534 psi | 85% | 2549 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 57,116 psi | 90% | 2605 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 54,984 psi | 86% | 2631 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 56,130 psi | 88% | 2612 fps | 96.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2589 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 92% | 57,609 psi | 90% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,621 psi | 86% | 2592 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2566 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 56,884 psi | 89% | 2575 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,362 psi | 88% | 2598 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 57,101 psi | 89% | 2694 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,579 psi | 89% | 2549 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,159 psi | 88% | 2615 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,420 psi | 88% | 2635 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,593 psi | 87% | 2513 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 54,984 psi | 86% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,186 psi | 85% | 2543 fps | 96.8% |
| Somchem S321 | <<locked>> | 86% | 55,013 psi | 86% | 2605 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 54,636 psi | 86% | 2513 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,550 psi | 87% | 2608 fps | 99.8% |
| Somchem S355 | <<locked>> | 98% | 55,608 psi | 87% | 2631 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,105 psi | 68% | 2543 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 55,405 psi | 87% | 2480 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,608 psi | 87% | 2500 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,347 psi | 88% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 57,653 psi | 90% | 2589 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 2615 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,792 psi | 80% | 2585 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 88% | 54,462 psi | 85% | 2572 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 55,782 psi | 87% | 2592 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,806 psi | 78% | 2592 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,027 psi | 56% | 2418 fps | 96.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,735 psi | 81% | 2572 fps | 99.8% |
| Winchester 748 | <<locked>> | 90% | 57,522 psi | 90% | 2664 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 52,185 psi | 82% | 2644 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 92% | 56,275 psi | 88% | 2644 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 2015 | <<locked>> | 80% | 43,598 psi | 68% | 2359 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,427 psi | 74% | 2457 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,158 psi | 57% | 2287 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,482 psi | 67% | 2418 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 50,372 psi | 79% | 2487 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 34,185 psi | 54% | 2274 fps | 99.6% |
| Accurate 4350 | <<locked>> | 92% | 36,869 psi | 58% | 2392 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 51,982 psi | 81% | 2431 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,373 psi | 82% | 2454 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,103 psi | 63% | 2375 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 34,171 psi | 54% | 2241 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 52,504 psi | 82% | 2543 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,105 psi | 66% | 2388 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 41,481 psi | 65% | 2385 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,892 psi | 77% | 2569 fps | 99.7% |
| Alliant Power Pro 2000-MR | 58.2 gr | 80% | 36,027 psi | 56% | 2382 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,359 psi | 52% | 2257 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,298 psi | 77% | 2448 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,940 psi | 56% | 2313 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,433 psi | 56% | 2349 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 82% | 30,748 psi | 48% | 2264 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,908 psi | 50% | 2300 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,836 psi | 80% | 2428 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,856 psi | 61% | 2372 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 32,692 psi | 51% | 2257 fps | 96.9% |
| Bofors RP7 | <<locked>> | 96% | 49,559 psi | 78% | 2513 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,990 psi | 69% | 2382 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,234 psi | 63% | 2402 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,179 psi | 69% | 2526 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 47,964 psi | 75% | 2477 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,689 psi | 76% | 2500 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,537 psi | 60% | 2359 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 45,643 psi | 72% | 2539 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 98% | 53,432 psi | 84% | 2608 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 40,393 psi | 63% | 2388 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,443 psi | 48% | 2208 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,143 psi | 57% | 2352 fps | 97.9% |
| Hodgdon Superformance | <<locked>> | 98% | 49,705 psi | 78% | 2618 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,947 psi | 41% | 1381 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,812 psi | 61% | 2343 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 39,421 psi | 62% | 2385 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,824 psi | 56% | 2270 fps | 96.3% |
| IMR 4166 Enduron | <<locked>> | 86% | 46,151 psi | 72% | 2428 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 49,647 psi | 78% | 2411 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 48,617 psi | 76% | 2500 fps | 95.6% |
| IMR 4831 | <<locked>> | 92% | 35,766 psi | 56% | 2349 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 36,782 psi | 58% | 2343 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 80% | 42,105 psi | 66% | 2388 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 47,311 psi | 74% | 2467 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 38,508 psi | 60% | 2359 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,625 psi | 64% | 2323 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,534 psi | 56% | 2274 fps | 98% |
| Lovex S065 | <<locked>> | 92% | 42,018 psi | 66% | 2398 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 44,991 psi | 71% | 2470 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 39,320 psi | 62% | 2336 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 39,378 psi | 62% | 2349 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,331 psi | 55% | 2303 fps | 96.7% |
| Norma URP | <<locked>> | 92% | 37,478 psi | 59% | 2392 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 34,577 psi | 54% | 2306 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 98% | 44,657 psi | 70% | 2530 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 41,989 psi | 66% | 2385 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,075 psi | 64% | 2405 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,542 psi | 71% | 2431 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,295 psi | 41% | 1417 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,079 psi | 74% | 2464 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,498 psi | 70% | 2441 fps | 95.4% |
| ReloadSwiss RS 52 | 56.5 gr | 80% | 37,144 psi | 58% | 2398 fps | 96.6% |
| ReloadSwiss RS 60 | 57.3 gr | 80% | 30,560 psi | 48% | 2270 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,840 psi | 58% | 2405 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,147 psi | 63% | 2467 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 43,033 psi | 67% | 2379 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,376 psi | 59% | 2290 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 30,763 psi | 48% | 2205 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 96% | 49,559 psi | 78% | 2513 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,018 psi | 66% | 2398 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,508 psi | 60% | 2359 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,534 psi | 56% | 2274 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 44,991 psi | 71% | 2470 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,734 psi | 78% | 2477 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,707 psi | 83% | 2552 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,908 psi | 50% | 2251 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,995 psi | 78% | 2464 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,059 psi | 63% | 2359 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,624 psi | 61% | 2349 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,872 psi | 64% | 2300 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,663 psi | 53% | 2178 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,326 psi | 74% | 2444 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 45,092 psi | 71% | 2457 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,379 psi | 63% | 2303 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,566 psi | 62% | 2359 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 31,850 psi | 50% | 2215 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 27,760 psi | 44% | 2195 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 46,253 psi | 72% | 2362 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,031 psi | 64% | 2300 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,448 psi | 57% | 2283 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,260 psi | 58% | 2290 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,182 psi | 47% | 2159 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 36,883 psi | 58% | 2346 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 42,047 psi | 66% | 2382 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 35,839 psi | 56% | 2280 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 36,042 psi | 56% | 2346 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 33,910 psi | 53% | 2372 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,777 psi | 48% | 2182 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 41,046 psi | 64% | 2421 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 45,861 psi | 72% | 2543 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,652 psi | 59% | 2349 fps | 97.9% |
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 106 powders for .358 Norma Mag. loaded with the .355 | 250gr | MAKER Solid Copper Expanding. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,769 fps; across all powders the maximum-charge window runs from 1,549 fps to 2,769 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.355" calls for a 1:16.5 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 .355 | 250gr | MAKER Solid Copper Expanding 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.