Load Specifications
Load data in caliber .338 RCM with .338 | 200gr | NorthFork Bonded Core bullet and 91 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% | 55,390 psi | 89% | 2641 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 55,985 psi | 90% | 2730 fps | 98.6% |
| Accurate 2230 | <<locked>> | 82% | 53,345 psi | 86% | 2694 fps | 98.6% |
| Accurate 2460 | <<locked>> | 88% | 54,157 psi | 87% | 2671 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 55,651 psi | 89% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 55,259 psi | 89% | 2723 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 54,984 psi | 88% | 2733 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 55,985 psi | 90% | 2595 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,200 psi | 85% | 2572 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 54,433 psi | 87% | 2723 fps | 99.1% |
| ADI AR 2207 | <<locked>> | 82% | 54,215 psi | 87% | 2575 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,100 psi | 88% | 2710 fps | 98.6% |
| ADI AR 2219 | <<locked>> | 86% | 56,362 psi | 90% | 2713 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 53,867 psi | 86% | 2684 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 92% | 52,939 psi | 85% | 2671 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,143 psi | 88% | 2782 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 53,679 psi | 86% | 2815 fps | 98.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 53,998 psi | 87% | 2730 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 88% | 55,709 psi | 89% | 2654 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,172 psi | 88% | 2753 fps | 98.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,066 psi | 77% | 2730 fps | 98.6% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,056 psi | 88% | 2589 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,911 psi | 88% | 2595 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,027 psi | 87% | 2733 fps | 98.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 54,404 psi | 87% | 2746 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 92% | 56,318 psi | 90% | 2671 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 94% | 55,912 psi | 90% | 2762 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 90% | 53,824 psi | 86% | 2792 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 88% | 54,766 psi | 88% | 2694 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 55,869 psi | 90% | 2717 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 56,333 psi | 90% | 2756 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 82% | 54,694 psi | 88% | 2598 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 54,911 psi | 88% | 2736 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,174 psi | 61% | 2474 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,040 psi | 85% | 2759 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,156 psi | 55% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 56,275 psi | 90% | 2733 fps | 99.5% |
| IMR 3031 | <<locked>> | 94% | 53,374 psi | 86% | 2723 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 54,723 psi | 88% | 2697 fps | 98.7% |
| IMR 4198 | <<locked>> | 88% | 56,217 psi | 90% | 2615 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 52,910 psi | 85% | 2733 fps | 99% |
| IMR 8208 XBR | <<locked>> | 92% | 53,867 psi | 86% | 2684 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 82% | 53,795 psi | 86% | 2674 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 53,954 psi | 87% | 2674 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 94% | 52,924 psi | 85% | 2700 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 55,056 psi | 88% | 2657 fps | 99.1% |
| Lovex S062 | <<locked>> | 98% | 53,737 psi | 86% | 2694 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 55,738 psi | 89% | 2631 fps | 100% |
| Norma 201 | <<locked>> | 96% | 56,391 psi | 90% | 2720 fps | 99.8% |
| Norma 202 | <<locked>> | 94% | 53,374 psi | 86% | 2684 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,201 psi | 87% | 2743 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 98% | 54,723 psi | 88% | 2766 fps | 99% |
| Ramshot TAC | <<locked>> | 92% | 54,708 psi | 88% | 2694 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,476 psi | 86% | 2713 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 90% | 55,680 psi | 89% | 2690 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,447 psi | 55% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 53,809 psi | 86% | 2674 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 53,766 psi | 86% | 2687 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,549 psi | 87% | 2812 fps | 98.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,343 psi | 82% | 2795 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,389 psi | 87% | 2664 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,243 psi | 85% | 2664 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,314 psi | 81% | 2680 fps | 99.1% |
| Shooters World AR Plus | <<locked>> | 82% | 53,795 psi | 86% | 2674 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 52,924 psi | 85% | 2700 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 53,737 psi | 86% | 2694 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,012 psi | 87% | 2644 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 53,940 psi | 86% | 2329 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,011 psi | 85% | 2674 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,504 psi | 84% | 2743 fps | 98.8% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,330 psi | 86% | 2631 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 55,985 psi | 90% | 2717 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 56,101 psi | 90% | 2740 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 55,622 psi | 89% | 2628 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 54,853 psi | 88% | 2621 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,143 psi | 88% | 2720 fps | 99.8% |
| Somchem S335 | <<locked>> | 94% | 54,476 psi | 87% | 2625 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,347 psi | 89% | 2713 fps | 99% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,416 psi | 82% | 2684 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,825 psi | 59% | 2513 fps | 97.3% |
| Vihtavuori N120 | <<locked>> | 82% | 54,099 psi | 87% | 2526 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 55,724 psi | 89% | 2605 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 55,303 psi | 89% | 2615 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 55,347 psi | 89% | 2687 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,766 psi | 86% | 2661 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,574 psi | 79% | 2625 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 92% | 54,563 psi | 87% | 2684 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 98% | 55,376 psi | 89% | 2703 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,223 psi | 73% | 2562 fps | 98% |
| Winchester 748 | <<locked>> | 92% | 53,185 psi | 85% | 2726 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 55,695 psi | 89% | 2749 fps | 99.5% |
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% | 38,319 psi | 61% | 2385 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,197 psi | 79% | 2625 fps | 97.6% |
| Accurate 2230 | <<locked>> | 80% | 49,545 psi | 79% | 2635 fps | 98% |
| Accurate 2460 | <<locked>> | 80% | 41,350 psi | 66% | 2470 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 30,719 psi | 49% | 2290 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 36,608 psi | 59% | 2418 fps | 98.5% |
| Accurate 4064 | <<locked>> | 80% | 29,095 psi | 47% | 2267 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 80% | 46,789 psi | 75% | 2467 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,166 psi | 76% | 2484 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 37,463 psi | 60% | 2425 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 50,923 psi | 82% | 2533 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 38,334 psi | 61% | 2425 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 46,006 psi | 74% | 2566 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,072 psi | 59% | 2392 fps | 96.9% |
| Alliant AR-Comp | <<locked>> | 80% | 35,476 psi | 57% | 2405 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,482 psi | 68% | 2572 fps | 97.7% |
| Alliant Power Pro 2000-MR | 54 gr | 88% | 41,104 psi | 66% | 2582 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,561 psi | 52% | 2343 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,555 psi | 70% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,826 psi | 61% | 2454 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,854 psi | 59% | 2500 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 51,866 psi | 83% | 2549 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,455 psi | 73% | 2461 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 41,336 psi | 66% | 2520 fps | 95.4% |
| Bofors RP3 | <<locked>> | 86% | 34,026 psi | 55% | 2392 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,291 psi | 63% | 2395 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,795 psi | 56% | 2398 fps | 96.9% |
| Hodgdon CFE223 | 50.3 gr | 80% | 38,363 psi | 62% | 2513 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 42,264 psi | 68% | 2503 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,743 psi | 69% | 2520 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 43,279 psi | 69% | 2549 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 51,532 psi | 83% | 2552 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 35,288 psi | 57% | 2382 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,708 psi | 57% | 2418 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,649 psi | 54% | 2392 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,295 psi | 41% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,200 psi | 55% | 2343 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 33,982 psi | 54% | 2398 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 37,811 psi | 61% | 2408 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 44,324 psi | 71% | 2451 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 36,187 psi | 58% | 2431 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 37,072 psi | 59% | 2392 fps | 96.9% |
| Lovex D073.4 | <<locked>> | 80% | 50,285 psi | 81% | 2621 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 41,205 psi | 66% | 2474 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 80% | 33,040 psi | 53% | 2352 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 36,303 psi | 58% | 2329 fps | 95.2% |
| Lovex S062 | <<locked>> | 82% | 32,982 psi | 53% | 2320 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 49,139 psi | 79% | 2543 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,447 psi | 55% | 2336 fps | 96.2% |
| Norma 202 | <<locked>> | 80% | 34,418 psi | 55% | 2356 fps | 98.5% |
| Norma 203B | <<locked>> | 86% | 37,144 psi | 60% | 2444 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 86% | 36,738 psi | 59% | 2451 fps | 95% |
| Ramshot TAC | <<locked>> | 88% | 48,051 psi | 77% | 2589 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,882 psi | 58% | 2398 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,205 psi | 64% | 2434 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 41% | 1463 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,582 psi | 67% | 2480 fps | 99.1% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 50,401 psi | 81% | 2635 fps | 95% |
| ReloadSwiss RS 52 | 51.2 gr | 86% | 39,073 psi | 63% | 2543 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 30,501 psi | 49% | 2349 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 38,087 psi | 61% | 2395 fps | 99% |
| Rottweil R 902 | <<locked>> | 80% | 32,895 psi | 53% | 2293 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 88% | 34,142 psi | 55% | 2385 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 50,285 psi | 81% | 2621 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,040 psi | 53% | 2352 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 32,982 psi | 53% | 2320 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,990 psi | 71% | 2490 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,053 psi | 82% | 2297 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,572 psi | 75% | 2575 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 38,174 psi | 61% | 2487 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,179 psi | 71% | 2493 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 45,585 psi | 73% | 2556 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,926 psi | 58% | 2392 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,260 psi | 58% | 2316 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,530 psi | 47% | 2185 fps | 98% |
| Somchem S321 | <<locked>> | 80% | 39,436 psi | 63% | 2464 fps | 97.8% |
| Somchem S335 | <<locked>> | 80% | 35,679 psi | 57% | 2320 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 36,985 psi | 59% | 2405 fps | 95.3% |
| Somchem S355 | <<locked>> | 88% | 35,360 psi | 57% | 2395 fps | 95.6% |
| Somchem S365 | <<locked>> | 96% | 32,503 psi | 52% | 2408 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 50,865 psi | 82% | 2487 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,176 psi | 66% | 2395 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,230 psi | 58% | 2323 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 31,372 psi | 50% | 2293 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 32,401 psi | 52% | 2293 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 84% | 29,646 psi | 48% | 2244 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 36,840 psi | 59% | 2385 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 80% | 31,125 psi | 50% | 2277 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,231 psi | 60% | 2411 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 35,607 psi | 57% | 2421 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,896 psi | 56% | 2392 fps | 95.5% |
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 91 powders for .338 RCM loaded with the .338 | 200gr | NorthFork Bonded Core. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,815 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,815 fps. Accurate 4064 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.338" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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 .338 RCM with the .338 | 200gr | NorthFork Bonded Core 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.