Load Specifications
Load data in caliber .358 Norma Mag. with .358 | 237gr | Apex Outdoors Afterburner bullet and 100 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, Hodgdon CFE223 and ReloadSwiss RS 52.
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 2015 | <<locked>> | 92% | 57,377 psi | 90% | 2579 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 54,128 psi | 85% | 2618 fps | 98.6% |
| Accurate 2230 | <<locked>> | 82% | 55,071 psi | 86% | 2631 fps | 99% |
| Accurate 2460 | <<locked>> | 88% | 56,115 psi | 88% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 54,607 psi | 86% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 57,276 psi | 90% | 2661 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 57,595 psi | 90% | 2674 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,525 psi | 67% | 2520 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 86% | 57,667 psi | 90% | 2533 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 54,505 psi | 85% | 2507 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 56,115 psi | 88% | 2661 fps | 99.4% |
| ADI AR 2207 | <<locked>> | 82% | 55,927 psi | 88% | 2510 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 56,971 psi | 89% | 2651 fps | 99% |
| ADI AR 2219 | <<locked>> | 84% | 54,215 psi | 85% | 2598 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 55,680 psi | 87% | 2625 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 92% | 54,969 psi | 86% | 2608 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 57,043 psi | 89% | 2720 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 55,593 psi | 87% | 2759 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,739 psi | 89% | 2674 fps | 99.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 2671 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 57,435 psi | 90% | 2589 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 57,145 psi | 90% | 2694 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,439 psi | 68% | 2530 fps | 96.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,588 psi | 78% | 2671 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 56,927 psi | 89% | 2526 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 56,507 psi | 89% | 2530 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 55,869 psi | 88% | 2674 fps | 98.7% |
| Bofors RP3ᴾ | <<locked>> | 100% | 56,376 psi | 88% | 2687 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,607 psi | 86% | 2566 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 92% | 54,244 psi | 85% | 2651 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 90% | 55,767 psi | 87% | 2733 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 88% | 56,463 psi | 88% | 2625 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 57,508 psi | 90% | 2651 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 54,621 psi | 86% | 2648 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 82% | 56,115 psi | 88% | 2530 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 56,536 psi | 89% | 2671 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,682 psi | 62% | 2428 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 54,882 psi | 86% | 2697 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,548 psi | 54% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,578 psi | 86% | 2625 fps | 99.5% |
| IMR 3031 | <<locked>> | 94% | 55,405 psi | 87% | 2661 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 56,376 psi | 88% | 2635 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 96% | 57,740 psi | 90% | 2618 fps | 96.1% |
| IMR 4198 | <<locked>> | 88% | 57,653 psi | 90% | 2546 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 54,897 psi | 86% | 2677 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 92% | 55,680 psi | 87% | 2625 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 82% | 56,057 psi | 88% | 2615 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 56,115 psi | 88% | 2615 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 54,998 psi | 86% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 56,536 psi | 89% | 2595 fps | 99.4% |
| Lovex S062 | <<locked>> | 98% | 55,912 psi | 88% | 2638 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,646 psi | 76% | 2530 fps | 95.8% |
| Norma 200 | <<locked>> | 82% | 54,288 psi | 85% | 2523 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,984 psi | 86% | 2612 fps | 99.8% |
| Norma 202 | <<locked>> | 94% | 55,288 psi | 87% | 2621 fps | 100% |
| Norma 203B | <<locked>> | 98% | 56,130 psi | 88% | 2684 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 43,033 psi | 67% | 2520 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 98% | 56,434 psi | 88% | 2707 fps | 99.3% |
| Ramshot TAC | <<locked>> | 92% | 56,260 psi | 88% | 2631 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 92% | 55,274 psi | 87% | 2654 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 90% | 57,130 psi | 90% | 2625 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,824 psi | 55% | 1588 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 55,463 psi | 87% | 2612 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 55,535 psi | 87% | 2631 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 56,710 psi | 89% | 2756 fps | 99.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,895 psi | 83% | 2733 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 56,550 psi | 89% | 2605 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 55,317 psi | 87% | 2608 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,388 psi | 82% | 2625 fps | 99.4% |
| Shooters World AR Plus | <<locked>> | 82% | 56,057 psi | 88% | 2615 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,646 psi | 76% | 2530 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 94% | 54,998 psi | 86% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 55,912 psi | 88% | 2638 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 55,579 psi | 87% | 2582 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 55,027 psi | 86% | 2264 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,650 psi | 86% | 2608 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 54,331 psi | 85% | 2684 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,853 psi | 86% | 2562 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 54,230 psi | 85% | 2608 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,592 psi | 86% | 2635 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 57,421 psi | 90% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 56,579 psi | 89% | 2556 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 56,927 psi | 89% | 2657 fps | 100% |
| Somchem S335 | <<locked>> | 94% | 56,130 psi | 88% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 57,232 psi | 90% | 2654 fps | 99.4% |
| Somchem S355ᴾ | <<locked>> | 100% | 53,388 psi | 84% | 2628 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,522 psi | 60% | 2470 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 82% | 55,738 psi | 87% | 2461 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 57,232 psi | 90% | 2536 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 57,087 psi | 89% | 2549 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 57,406 psi | 90% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 55,463 psi | 87% | 2595 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,329 psi | 80% | 2566 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,397 psi | 71% | 2520 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 92% | 56,275 psi | 88% | 2625 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 98% | 57,203 psi | 90% | 2641 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,396 psi | 70% | 2526 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,746 psi | 73% | 2510 fps | 98.5% |
| Winchester 748 | <<locked>> | 92% | 55,129 psi | 86% | 2667 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 96% | 57,682 psi | 90% | 2690 fps | 99.7% |
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% | 40,074 psi | 63% | 2333 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,981 psi | 80% | 2569 fps | 98.2% |
| Accurate 2230 | <<locked>> | 80% | 51,619 psi | 81% | 2582 fps | 98.5% |
| Accurate 2460 | <<locked>> | 80% | 43,250 psi | 68% | 2421 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 32,924 psi | 52% | 2254 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 38,406 psi | 60% | 2372 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 31,125 psi | 49% | 2234 fps | 98.3% |
| Accurate 4350 | <<locked>> | 98% | 39,798 psi | 62% | 2474 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 48,138 psi | 75% | 2405 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,486 psi | 76% | 2421 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 36,709 psi | 58% | 2329 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 52,649 psi | 83% | 2467 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 37,536 psi | 59% | 2329 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 47,601 psi | 75% | 2507 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,595 psi | 60% | 2346 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 37,144 psi | 58% | 2352 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,280 psi | 69% | 2520 fps | 98.3% |
| Alliant Power Pro 2000-MR | 57.9 gr | 86% | 39,972 psi | 63% | 2480 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,043 psi | 58% | 2343 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 32,140 psi | 50% | 2254 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,237 psi | 71% | 2421 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 37,057 psi | 58% | 2359 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,814 psi | 64% | 2477 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 36,100 psi | 57% | 2408 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 53,476 psi | 84% | 2484 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,818 psi | 73% | 2402 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 40,364 psi | 63% | 2421 fps | 95.5% |
| Bofors RP3 | <<locked>> | 82% | 31,473 psi | 49% | 2254 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,698 psi | 64% | 2343 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,463 psi | 57% | 2356 fps | 97.7% |
| Hodgdon CFE223 | 55.1 gr | 80% | 39,798 psi | 62% | 2464 fps | 96% |
| Hodgdon H322 | <<locked>> | 80% | 43,656 psi | 68% | 2444 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,208 psi | 69% | 2461 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 42,177 psi | 66% | 2448 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 52,866 psi | 83% | 2487 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 36,898 psi | 58% | 2339 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 35,114 psi | 55% | 2333 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,851 psi | 51% | 2297 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 40% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,491 psi | 56% | 2297 fps | 95.9% |
| IMR 3031 | <<locked>> | 80% | 35,578 psi | 56% | 2349 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 37,144 psi | 58% | 2316 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 94% | 54,215 psi | 85% | 2569 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 45,977 psi | 72% | 2392 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 35,462 psi | 56% | 2336 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,595 psi | 60% | 2346 fps | 97.6% |
| Lovex D073.4 | <<locked>> | 80% | 52,243 psi | 82% | 2566 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 43,091 psi | 68% | 2425 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 34,838 psi | 55% | 2313 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 37,550 psi | 59% | 2280 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 32,547 psi | 51% | 2231 fps | 95.9% |
| Lovex S065 | <<locked>> | 98% | 45,658 psi | 72% | 2480 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 51,213 psi | 80% | 2484 fps | 100% |
| Norma 201 | <<locked>> | 80% | 36,187 psi | 57% | 2293 fps | 97.1% |
| Norma 202 | <<locked>> | 80% | 36,027 psi | 56% | 2310 fps | 99% |
| Norma 203B | <<locked>> | 84% | 36,376 psi | 57% | 2349 fps | 95.7% |
| Norma URP | <<locked>> | 98% | 40,567 psi | 64% | 2470 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 35,926 psi | 56% | 2352 fps | 95.1% |
| Ramshot TAC | <<locked>> | 86% | 46,485 psi | 73% | 2484 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,231 psi | 58% | 2352 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,771 psi | 65% | 2385 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,991 psi | 41% | 1421 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,265 psi | 68% | 2428 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,776 psi | 76% | 2530 fps | 95% |
| ReloadSwiss RS 52 | 54.8 gr | 84% | 38,043 psi | 60% | 2441 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 29,965 psi | 47% | 2260 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 40,089 psi | 63% | 2349 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 34,548 psi | 54% | 2251 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 86% | 33,707 psi | 53% | 2297 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 52,243 psi | 82% | 2566 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 98% | 45,658 psi | 72% | 2480 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,838 psi | 55% | 2313 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 32,547 psi | 51% | 2231 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,687 psi | 72% | 2438 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 52,402 psi | 82% | 2231 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 48,022 psi | 75% | 2516 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 37,376 psi | 59% | 2392 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,658 psi | 72% | 2434 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 44,338 psi | 69% | 2454 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,099 psi | 55% | 2297 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,681 psi | 59% | 2264 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,879 psi | 48% | 2142 fps | 98.6% |
| Somchem S321 | <<locked>> | 80% | 41,075 psi | 64% | 2415 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 37,275 psi | 58% | 2274 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 35,897 psi | 56% | 2306 fps | 95.3% |
| Somchem S355 | <<locked>> | 84% | 32,866 psi | 52% | 2260 fps | 95% |
| Somchem S365 | <<locked>> | 94% | 32,068 psi | 50% | 2323 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 80% | 52,533 psi | 82% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 42,670 psi | 67% | 2339 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,623 psi | 59% | 2270 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,967 psi | 52% | 2247 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,866 psi | 53% | 2247 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 82% | 29,283 psi | 46% | 2159 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 98% | 42,815 psi | 67% | 2474 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 38,363 psi | 60% | 2336 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 32,677 psi | 51% | 2238 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 98% | 41,669 psi | 65% | 2477 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 36,318 psi | 57% | 2316 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 37,028 psi | 58% | 2372 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,142 psi | 54% | 2297 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 118 powders for .358 Norma Mag. loaded with the .358 | 237gr | Apex Outdoors Afterburner. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,759 fps. Accurate 4064 gives the best case fill at 100 %, and 118 of the 118 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 237.0 gr projectile in 0.358" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, ADI AR 2208 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for .358 Norma Mag. with the .358 | 237gr | Apex Outdoors Afterburner they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.