Load Specifications
Load data in caliber .338 RCM with .338 | 200gr | Barnes Solid bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R 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 1680 | <<locked>> | 82% | 54,578 psi | 88% | 2520 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 53,940 psi | 86% | 2585 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 55,129 psi | 88% | 2667 fps | 97.9% |
| Accurate 2230 | <<locked>> | 86% | 55,666 psi | 89% | 2677 fps | 98.3% |
| Accurate 2460 | <<locked>> | 92% | 56,115 psi | 90% | 2651 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 52,779 psi | 85% | 2631 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 54,795 psi | 88% | 2684 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 54,795 psi | 88% | 2684 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,936 psi | 78% | 2615 fps | 100% |
| Accurate LT-30 | <<locked>> | 88% | 55,317 psi | 89% | 2543 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 55,782 psi | 89% | 2559 fps | 100% |
| ADI AR 2206H | <<locked>> | 98% | 56,115 psi | 90% | 2700 fps | 98.8% |
| ADI AR 2207 | <<locked>> | 84% | 53,171 psi | 85% | 2526 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,430 psi | 81% | 2592 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 88% | 55,056 psi | 88% | 2654 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 55,956 psi | 90% | 2664 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 96% | 54,056 psi | 87% | 2651 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 53,476 psi | 86% | 2713 fps | 99% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2792 fps | 97.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,646 psi | 78% | 2612 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 90% | 54,027 psi | 87% | 2595 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,214 psi | 85% | 2680 fps | 98% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,308 psi | 69% | 2585 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 84% | 54,215 psi | 87% | 2539 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 54,273 psi | 87% | 2543 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 55,796 psi | 89% | 2710 fps | 97.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,385 psi | 78% | 2618 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 94% | 55,376 psi | 89% | 2612 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 96% | 53,737 psi | 86% | 2690 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 94% | 56,057 psi | 90% | 2776 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 90% | 53,359 psi | 86% | 2635 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 54,259 psi | 87% | 2654 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 50,763 psi | 81% | 2628 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 84% | 54,143 psi | 87% | 2543 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 53,258 psi | 85% | 2664 fps | 98.8% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 54,534 psi | 87% | 2733 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,649 psi | 54% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 54,708 psi | 88% | 2664 fps | 98.9% |
| IMR 3031 | <<locked>> | 98% | 54,824 psi | 88% | 2707 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,055 psi | 85% | 2625 fps | 97.9% |
| IMR 4198 | <<locked>> | 90% | 54,926 psi | 88% | 2562 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 54,505 psi | 87% | 2713 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 96% | 55,956 psi | 90% | 2664 fps | 99.5% |
| Lovex D073.4 | <<locked>> | 86% | 56,333 psi | 90% | 2664 fps | 100% |
| Lovex D073.5 | <<locked>> | 92% | 56,217 psi | 90% | 2661 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 98% | 54,476 psi | 87% | 2680 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 55,869 psi | 90% | 2464 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 53,954 psi | 87% | 2592 fps | 98.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2625 fps | 99.2% |
| Norma 200 | <<locked>> | 86% | 54,172 psi | 87% | 2575 fps | 100% |
| Norma 201 | <<locked>> | 98% | 54,795 psi | 88% | 2651 fps | 99.4% |
| Norma 202 | <<locked>> | 98% | 55,013 psi | 88% | 2664 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,286 psi | 84% | 2671 fps | 98.3% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,794 psi | 85% | 2690 fps | 98.1% |
| Ramshot TAC | <<locked>> | 94% | 53,447 psi | 86% | 2625 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 96% | 55,259 psi | 89% | 2694 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,302 psi | 87% | 2621 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,939 psi | 54% | 1594 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 55,956 psi | 90% | 2661 fps | 99.9% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 56,231 psi | 90% | 2789 fps | 98.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,282 psi | 74% | 2657 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 96% | 55,767 psi | 89% | 2641 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 55,027 psi | 88% | 2644 fps | 99.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,020 psi | 72% | 2556 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 86% | 56,333 psi | 90% | 2664 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 98% | 54,476 psi | 87% | 2680 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2625 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 53,026 psi | 85% | 2585 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 56,318 psi | 90% | 2320 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 55,245 psi | 89% | 2661 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,514 psi | 76% | 2615 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 55,027 psi | 88% | 2612 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 54,244 psi | 87% | 2641 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 54,491 psi | 87% | 2671 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 54,418 psi | 87% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 50,024 psi | 80% | 2516 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 53,490 psi | 86% | 2654 fps | 99.4% |
| Somchem S335 | <<locked>> | 98% | 56,289 psi | 90% | 2608 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 53,592 psi | 86% | 2641 fps | 98.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,253 psi | 74% | 2562 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 86% | 56,434 psi | 90% | 2516 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 54,273 psi | 87% | 2549 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 53,925 psi | 86% | 2559 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 53,142 psi | 85% | 2621 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 55,405 psi | 89% | 2641 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,686 psi | 72% | 2507 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 94% | 52,968 psi | 85% | 2618 fps | 99.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,519 psi | 86% | 2638 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 41,321 psi | 66% | 2441 fps | 96% |
| Winchester 748 | <<locked>> | 96% | 54,810 psi | 88% | 2707 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 98% | 53,809 psi | 86% | 2680 fps | 98.9% |
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 1680 | <<locked>> | 80% | 51,155 psi | 82% | 2477 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 34,867 psi | 56% | 2287 fps | 99.7% |
| Accurate 2200 | <<locked>> | 80% | 45,295 psi | 73% | 2513 fps | 96% |
| Accurate 2230 | <<locked>> | 80% | 45,020 psi | 72% | 2516 fps | 96.4% |
| Accurate 2460 | <<locked>> | 80% | 37,637 psi | 60% | 2365 fps | 98.5% |
| Accurate 2495 | <<locked>> | 80% | 27,296 psi | 44% | 2182 fps | 98.6% |
| Accurate 2520 | <<locked>> | 80% | 31,473 psi | 50% | 2287 fps | 96.4% |
| Accurate 2520 | <<locked>> | 80% | 31,473 psi | 50% | 2287 fps | 96.4% |
| Accurate 4064 | <<locked>> | 80% | 25,904 psi | 42% | 2156 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 43,569 psi | 70% | 2375 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 43,947 psi | 70% | 2385 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 38,696 psi | 62% | 2408 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 46,949 psi | 75% | 2444 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 42,177 psi | 68% | 2454 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 41,901 psi | 67% | 2461 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 33,808 psi | 54% | 2283 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 32,126 psi | 52% | 2306 fps | 100% |
| Alliant Power Pro 1200-R | 42 gr | 80% | 38,421 psi | 62% | 2451 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 45,614 psi | 73% | 2621 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 35,447 psi | 57% | 2372 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,972 psi | 64% | 2388 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 41,437 psi | 66% | 2484 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 40,553 psi | 65% | 2533 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,124 psi | 77% | 2457 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,887 psi | 67% | 2365 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 42,960 psi | 69% | 2503 fps | 95% |
| Bofors RP3 | <<locked>> | 90% | 34,664 psi | 56% | 2372 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,260 psi | 58% | 2293 fps | 96.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 33,489 psi | 54% | 2336 fps | 95.8% |
| Hodgdon CFE223 | 49.3 gr | 86% | 42,656 psi | 68% | 2556 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 38,392 psi | 62% | 2398 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 80% | 38,769 psi | 62% | 2411 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 98% | 47,413 psi | 76% | 2575 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 48,008 psi | 77% | 2457 fps | 100% |
| Hodgdon H4895 | <<locked>> | 84% | 36,579 psi | 59% | 2375 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 36,985 psi | 59% | 2428 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,005 psi | 40% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 37,811 psi | 61% | 2382 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 30,603 psi | 49% | 2287 fps | 98.5% |
| IMR 4064 | <<locked>> | 92% | 41,437 psi | 66% | 2438 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 41,118 psi | 66% | 2365 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 39,639 psi | 64% | 2464 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 33,808 psi | 54% | 2283 fps | 95% |
| Lovex D073.4 | <<locked>> | 80% | 45,890 psi | 74% | 2513 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 37,231 psi | 60% | 2359 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 80% | 29,559 psi | 47% | 2241 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 52,924 psi | 85% | 2431 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 40,132 psi | 64% | 2365 fps | 95.6% |
| Lovex S062 | <<locked>> | 86% | 33,895 psi | 54% | 2306 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 44,976 psi | 72% | 2448 fps | 100% |
| Norma 201 | <<locked>> | 82% | 33,533 psi | 54% | 2280 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 31,241 psi | 50% | 2251 fps | 97% |
| Norma 203B | <<locked>> | 90% | 37,985 psi | 61% | 2425 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 92% | 40,538 psi | 65% | 2484 fps | 95.3% |
| Ramshot TAC | <<locked>> | 92% | 49,908 psi | 80% | 2569 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 39,726 psi | 64% | 2441 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 82% | 39,407 psi | 63% | 2375 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,918 psi | 40% | 1421 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,174 psi | 61% | 2375 fps | 97.9% |
| ReloadSwiss RS 52 | 49.9 gr | 92% | 42,844 psi | 69% | 2572 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 33,591 psi | 54% | 2385 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 34,809 psi | 56% | 2290 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 33,852 psi | 54% | 2280 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 94% | 37,072 psi | 59% | 2411 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 80% | 45,890 psi | 74% | 2513 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,559 psi | 47% | 2241 fps | 95.6% |
| Shooters World Precision | <<locked>> | 86% | 33,895 psi | 54% | 2306 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,393 psi | 65% | 2382 fps | 96.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,225 psi | 77% | 2224 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,380 psi | 68% | 2467 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 39,189 psi | 63% | 2464 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,582 psi | 65% | 2398 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 47,485 psi | 76% | 2543 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 39,726 psi | 64% | 2431 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,431 psi | 54% | 2218 fps | 97.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,079 psi | 43% | 2093 fps | 96.5% |
| Somchem S321 | <<locked>> | 80% | 35,781 psi | 57% | 2352 fps | 96.2% |
| Somchem S335 | <<locked>> | 80% | 32,619 psi | 52% | 2221 fps | 98.1% |
| Somchem S341 | <<locked>> | 88% | 40,959 psi | 66% | 2441 fps | 95.7% |
| Somchem S355 | <<locked>> | 92% | 36,100 psi | 58% | 2375 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 46,978 psi | 75% | 2402 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,029 psi | 61% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,286 psi | 53% | 2228 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 80% | 28,268 psi | 45% | 2192 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 29,472 psi | 47% | 2192 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 90% | 32,401 psi | 52% | 2274 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 33,605 psi | 54% | 2277 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 28,311 psi | 45% | 2178 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 38,595 psi | 62% | 2388 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 32,271 psi | 52% | 2306 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 36,245 psi | 58% | 2382 fps | 95.1% |
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 | Barnes Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,792 fps. Accurate 2495 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 54–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.338" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, 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. Hodgdon CFE223, Alliant Power Pro 1200-R, ReloadSwiss RS 52 rank at the top here: for .338 RCM with the .338 | 200gr | Barnes Solid 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.