Load Specifications
Load data in caliber .338 RCM with .338 | 165gr | TPM XTLD bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, SNPE Vectan SP 10 and ADI AR 2219.
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>> | 84% | 54,476 psi | 87% | 2808 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 55,970 psi | 90% | 2907 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 54,375 psi | 87% | 2940 fps | 96.1% |
| Accurate 2230 | <<locked>> | 88% | 54,998 psi | 88% | 2953 fps | 96.7% |
| Accurate 2460 | <<locked>> | 94% | 54,926 psi | 88% | 2927 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,587 psi | 76% | 2851 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 55,564 psi | 89% | 2972 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,150 psi | 71% | 2818 fps | 99% |
| Accurate LT-30 | <<locked>> | 90% | 55,100 psi | 88% | 2825 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 55,506 psi | 89% | 2841 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 90% | 55,506 psi | 89% | 2841 fps | 99.5% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 55,216 psi | 89% | 2969 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 88% | 55,448 psi | 89% | 2858 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 53,882 psi | 86% | 2936 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 54,853 psi | 88% | 2933 fps | 98.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 55,941 psi | 90% | 2986 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 55,811 psi | 89% | 3045 fps | 98.1% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,251 psi | 71% | 2808 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 94% | 56,260 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 53,519 psi | 86% | 2828 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,838 psi | 86% | 2818 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 55,129 psi | 88% | 2976 fps | 96% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,947 psi | 70% | 2815 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 96% | 54,636 psi | 88% | 2884 fps | 98.7% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 56,333 psi | 90% | 3012 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 96% | 54,969 psi | 88% | 3045 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 94% | 55,753 psi | 89% | 2963 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,548 psi | 86% | 2933 fps | 99.7% |
| Hodgdon H4198 | <<locked>> | 86% | 53,751 psi | 86% | 2825 fps | 99.8% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2982 fps | 97.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,154 psi | 80% | 2943 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,083 psi | 53% | 1742 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 54,056 psi | 87% | 2936 fps | 97.5% |
| IMR 3031ᴾ | <<locked>> | 100% | 52,939 psi | 85% | 2982 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 54,012 psi | 87% | 2851 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 53,635 psi | 86% | 2772 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,908 psi | 80% | 2920 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 98% | 54,853 psi | 88% | 2933 fps | 98.3% |
| Lovex D073.4 | <<locked>> | 88% | 55,477 psi | 89% | 2943 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 94% | 54,998 psi | 88% | 2930 fps | 99% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 52,982 psi | 85% | 2949 fps | 99.3% |
| Lovex S053 | <<locked>> | 84% | 55,651 psi | 89% | 2762 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,171 psi | 85% | 2854 fps | 96.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,659 psi | 76% | 2835 fps | 97.2% |
| Norma 200 | <<locked>> | 88% | 53,301 psi | 85% | 2861 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 53,563 psi | 86% | 2917 fps | 98.2% |
| Norma 202ᴾ | <<locked>> | 100% | 53,606 psi | 86% | 2933 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,848 psi | 77% | 2874 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 98% | 54,244 psi | 87% | 2956 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 94% | 53,606 psi | 86% | 2884 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,170 psi | 53% | 1785 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 53,940 psi | 86% | 2812 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 55,158 psi | 88% | 2936 fps | 99.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,670 psi | 68% | 2838 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 98% | 54,534 psi | 87% | 2913 fps | 99.6% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,531 psi | 81% | 2858 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 88% | 55,477 psi | 89% | 2943 fps | 99.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 52,982 psi | 85% | 2949 fps | 99.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,659 psi | 76% | 2835 fps | 97.2% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 56,043 psi | 90% | 2904 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 55,927 psi | 90% | 2602 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 54,549 psi | 87% | 2943 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,143 psi | 87% | 2897 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2933 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,679 psi | 86% | 2838 fps | 99.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,137 psi | 74% | 2733 fps | 99.5% |
| Somchem S321 | <<locked>> | 96% | 56,376 psi | 90% | 2979 fps | 98.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 55,201 psi | 89% | 2881 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 52,547 psi | 84% | 2900 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 88% | 55,434 psi | 89% | 2805 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,621 psi | 86% | 2831 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 56,318 psi | 90% | 2881 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,385 psi | 78% | 2851 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,705 psi | 81% | 2861 fps | 99.6% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,611 psi | 65% | 2694 fps | 96% |
| Vihtavuori N530 | <<locked>> | 98% | 55,695 psi | 89% | 2936 fps | 98.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,226 psi | 79% | 2854 fps | 99.2% |
| Winchester 748 | <<locked>> | 98% | 53,606 psi | 86% | 2976 fps | 98.9% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,663 psi | 84% | 2943 fps | 97.4% |
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% | 47,703 psi | 76% | 2707 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,010 psi | 51% | 2477 fps | 98.1% |
| Accurate 2200 | <<locked>> | 86% | 51,053 psi | 82% | 2884 fps | 95.4% |
| Accurate 2230 | <<locked>> | 84% | 47,587 psi | 76% | 2828 fps | 95% |
| Accurate 2460 | <<locked>> | 80% | 34,214 psi | 55% | 2546 fps | 95.9% |
| Accurate 2495 | <<locked>> | 80% | 24,381 psi | 39% | 2336 fps | 95.6% |
| Accurate 2520 | <<locked>> | 84% | 34,287 psi | 55% | 2589 fps | 95.4% |
| Accurate 4064 | <<locked>> | 88% | 30,081 psi | 48% | 2510 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 40,524 psi | 65% | 2582 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 80% | 40,886 psi | 66% | 2592 fps | 97.3% |
| Accurate LT-32 | <<locked>> | 80% | 40,886 psi | 66% | 2592 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 94% | 45,745 psi | 73% | 2808 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 43,497 psi | 70% | 2680 fps | 100% |
| ADI AR 2219 | 46.8 gr | 80% | 38,493 psi | 62% | 2664 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 40,263 psi | 65% | 2674 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 29,153 psi | 47% | 2487 fps | 99.4% |
| Alliant Power Pro 1200-R | 48.7 gr | 86% | 42,786 psi | 69% | 2812 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 41,568 psi | 67% | 2756 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,738 psi | 59% | 2598 fps | 99.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,527 psi | 71% | 2687 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,073 psi | 63% | 2572 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 51,387 psi | 82% | 2913 fps | 95.1% |
| Bofors RP3 | <<locked>> | 98% | 40,901 psi | 66% | 2756 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 38,087 psi | 61% | 2582 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 88% | 37,376 psi | 60% | 2674 fps | 95.1% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,416 psi | 82% | 2986 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 80% | 35,273 psi | 57% | 2592 fps | 97.5% |
| Hodgdon H335 | <<locked>> | 80% | 35,520 psi | 57% | 2598 fps | 96.5% |
| Hodgdon H4198 | <<locked>> | 80% | 44,672 psi | 72% | 2674 fps | 99% |
| Hodgdon H4895 | <<locked>> | 92% | 42,989 psi | 69% | 2762 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 43,961 psi | 70% | 2828 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,468 psi | 39% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 44,701 psi | 72% | 2776 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 27,949 psi | 45% | 2457 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 37,956 psi | 61% | 2582 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,604 psi | 81% | 2730 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 46,659 psi | 75% | 2864 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 88% | 40,263 psi | 65% | 2674 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 41,945 psi | 67% | 2717 fps | 97.4% |
| Lovex D073.5 | <<locked>> | 82% | 36,318 psi | 58% | 2592 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 88% | 35,114 psi | 56% | 2621 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 49,458 psi | 79% | 2677 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 47,239 psi | 76% | 2753 fps | 95.5% |
| Lovex S062 | <<locked>> | 94% | 39,566 psi | 63% | 2677 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 41,379 psi | 66% | 2671 fps | 100% |
| Norma 201 | <<locked>> | 90% | 39,378 psi | 63% | 2657 fps | 95% |
| Norma 202 | <<locked>> | 84% | 32,300 psi | 52% | 2523 fps | 95.5% |
| Norma 203B | <<locked>> | 98% | 44,715 psi | 72% | 2815 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 94% | 47,471 psi | 76% | 2844 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 90% | 47,166 psi | 76% | 2776 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,468 psi | 39% | 1594 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,691 psi | 81% | 2766 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,027 psi | 56% | 2559 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,929 psi | 64% | 2776 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 32,140 psi | 52% | 2474 fps | 95% |
| Rottweil R 902 | <<locked>> | 92% | 39,711 psi | 64% | 2657 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 41,945 psi | 67% | 2717 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 35,114 psi | 56% | 2621 fps | 95.7% |
| Shooters World Precision | <<locked>> | 94% | 39,566 psi | 63% | 2677 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 42,670 psi | 68% | 2680 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,469 psi | 73% | 2464 fps | 100% |
| SNPE Vectan SP 10 | 48.4 gr | 80% | 38,972 psi | 62% | 2667 fps | 97.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,260 psi | 60% | 2602 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 47,152 psi | 76% | 2828 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 32,692 psi | 52% | 2444 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 29,950 psi | 48% | 2395 fps | 95.7% |
| Somchem S321 | <<locked>> | 86% | 40,190 psi | 64% | 2697 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 30,008 psi | 48% | 2398 fps | 95.5% |
| Somchem S341 | <<locked>> | 94% | 45,905 psi | 74% | 2789 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 43,584 psi | 70% | 2635 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,114 psi | 56% | 2507 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 80% | 30,589 psi | 49% | 2411 fps | 97.5% |
| Vihtavuori N135 | <<locked>> | 80% | 25,657 psi | 41% | 2356 fps | 95.9% |
| Vihtavuori N140 | <<locked>> | 84% | 30,661 psi | 49% | 2461 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 98% | 38,072 psi | 61% | 2641 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 88% | 40,118 psi | 64% | 2667 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 88% | 33,315 psi | 53% | 2539 fps | 95.6% |
| Winchester 748 | <<locked>> | 88% | 38,493 psi | 62% | 2697 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 94% | 43,047 psi | 69% | 2772 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 79 powders for .338 RCM loaded with the .338 | 165gr | TPM XTLD. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,742 fps to 3,045 fps. Accurate 2495 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.338" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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 1200-R, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for .338 RCM with the .338 | 165gr | TPM XTLD 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.