Load Specifications
Load data in caliber .338 RCM with .338 | 180gr | Nosler AccuBond bullet and 87 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 Winchester 748.
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% | 54,389 psi | 87% | 2694 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 53,737 psi | 86% | 2762 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 54,969 psi | 88% | 2848 fps | 97.4% |
| Accurate 2230 | <<locked>> | 86% | 55,927 psi | 90% | 2861 fps | 97.9% |
| Accurate 2460 | <<locked>> | 92% | 56,246 psi | 90% | 2835 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 53,156 psi | 85% | 2812 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 53,374 psi | 86% | 2835 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2792 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 88% | 55,492 psi | 89% | 2723 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 55,941 psi | 90% | 2743 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 98% | 56,318 psi | 90% | 2881 fps | 98.4% |
| ADI AR 2207 | <<locked>> | 86% | 56,405 psi | 90% | 2749 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,459 psi | 81% | 2766 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 88% | 54,984 psi | 88% | 2838 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 55,782 psi | 89% | 2841 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 96% | 54,041 psi | 87% | 2835 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 53,490 psi | 86% | 2897 fps | 98.6% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2976 fps | 97.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,849 psi | 78% | 2785 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 90% | 54,215 psi | 87% | 2782 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,229 psi | 85% | 2854 fps | 97.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,424 psi | 70% | 2753 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 84% | 54,259 psi | 87% | 2723 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 54,331 psi | 87% | 2720 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 55,970 psi | 90% | 2887 fps | 97.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,515 psi | 78% | 2792 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 94% | 55,390 psi | 89% | 2792 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 96% | 53,998 psi | 87% | 2871 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 94% | 55,956 psi | 90% | 2956 fps | 98% |
| Hodgdon H322 | <<locked>> | 90% | 53,171 psi | 85% | 2812 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 54,389 psi | 87% | 2838 fps | 100% |
| Hodgdon H4198 | <<locked>> | 84% | 54,230 psi | 87% | 2726 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 53,127 psi | 85% | 2841 fps | 98.5% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 54,853 psi | 88% | 2917 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,576 psi | 54% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 55,013 psi | 88% | 2848 fps | 98.6% |
| IMR 3031 | <<locked>> | 98% | 54,868 psi | 88% | 2890 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,084 psi | 85% | 2799 fps | 97.4% |
| IMR 4198 | <<locked>> | 90% | 55,100 psi | 88% | 2746 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 54,433 psi | 87% | 2890 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 96% | 55,782 psi | 89% | 2841 fps | 99.2% |
| Lovex D073.4 | <<locked>> | 86% | 56,391 psi | 90% | 2844 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 92% | 56,362 psi | 90% | 2841 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 98% | 54,607 psi | 88% | 2861 fps | 99.9% |
| Lovex S053 | <<locked>> | 82% | 55,796 psi | 89% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 53,867 psi | 86% | 2766 fps | 98% |
| Lovex S062ᴾ | <<locked>> | 100% | 52,170 psi | 84% | 2802 fps | 98.9% |
| Norma 200 | <<locked>> | 86% | 54,143 psi | 87% | 2756 fps | 100% |
| Norma 201 | <<locked>> | 98% | 54,708 psi | 88% | 2828 fps | 99.1% |
| Norma 202 | <<locked>> | 98% | 55,129 psi | 88% | 2844 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,214 psi | 84% | 2844 fps | 97.9% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2867 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 96% | 55,434 psi | 89% | 2871 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,447 psi | 87% | 2799 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,750 psi | 54% | 1722 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 56,159 psi | 90% | 2841 fps | 99.8% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 56,333 psi | 90% | 2972 fps | 98% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,499 psi | 75% | 2831 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 96% | 55,999 psi | 90% | 2825 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 55,129 psi | 88% | 2825 fps | 99.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,107 psi | 72% | 2723 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 86% | 56,391 psi | 90% | 2844 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 98% | 54,607 psi | 88% | 2861 fps | 99.9% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 52,170 psi | 84% | 2802 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,910 psi | 85% | 2756 fps | 98.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 56,362 psi | 90% | 2497 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 55,361 psi | 89% | 2844 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,616 psi | 76% | 2785 fps | 96.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 55,201 psi | 89% | 2799 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 54,418 psi | 87% | 2818 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 54,621 psi | 88% | 2848 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 54,389 psi | 87% | 2743 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 50,111 psi | 80% | 2690 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 53,592 psi | 86% | 2831 fps | 99.2% |
| Somchem S335 | <<locked>> | 98% | 56,159 psi | 90% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 53,737 psi | 86% | 2818 fps | 97.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,514 psi | 75% | 2733 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 86% | 56,304 psi | 90% | 2697 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 54,433 psi | 87% | 2730 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 53,896 psi | 86% | 2736 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 53,229 psi | 85% | 2802 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 55,564 psi | 89% | 2822 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,773 psi | 72% | 2674 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 94% | 53,287 psi | 85% | 2799 fps | 98.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,867 psi | 86% | 2818 fps | 99.9% |
| Winchester 748 | <<locked>> | 96% | 54,955 psi | 88% | 2890 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 98% | 53,925 psi | 86% | 2858 fps | 98.5% |
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 1680 | <<locked>> | 80% | 50,894 psi | 82% | 2648 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 34,925 psi | 56% | 2444 fps | 99.4% |
| Accurate 2200 | <<locked>> | 80% | 45,078 psi | 72% | 2677 fps | 95.3% |
| Accurate 2230 | <<locked>> | 80% | 45,005 psi | 72% | 2684 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 37,376 psi | 60% | 2520 fps | 97.9% |
| Accurate 2495 | <<locked>> | 80% | 27,369 psi | 44% | 2326 fps | 98% |
| Accurate 2520 | <<locked>> | 80% | 32,822 psi | 53% | 2457 fps | 96.2% |
| Accurate 4064 | <<locked>> | 82% | 27,630 psi | 44% | 2346 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 43,569 psi | 70% | 2539 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 43,932 psi | 70% | 2552 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 88% | 41,060 psi | 66% | 2618 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 47,007 psi | 75% | 2621 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 44,701 psi | 72% | 2664 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 41,800 psi | 67% | 2628 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 36,114 psi | 58% | 2487 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 32,082 psi | 51% | 2464 fps | 100% |
| Alliant Power Pro 1200-R | 45.9 gr | 80% | 38,609 psi | 62% | 2621 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 48,965 psi | 79% | 2851 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,927 psi | 61% | 2582 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,929 psi | 64% | 2552 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 44,121 psi | 71% | 2700 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 40,712 psi | 65% | 2694 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,124 psi | 77% | 2635 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,930 psi | 67% | 2530 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 45,832 psi | 73% | 2723 fps | 95.1% |
| Bofors RP3 | <<locked>> | 92% | 37,130 psi | 60% | 2579 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,289 psi | 58% | 2451 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 33,605 psi | 54% | 2490 fps | 95% |
| Hodgdon CFE223 | 55 gr | 88% | 45,687 psi | 73% | 2782 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 38,334 psi | 61% | 2559 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 38,856 psi | 62% | 2572 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 80% | 48,008 psi | 77% | 2631 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 86% | 38,885 psi | 62% | 2582 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 37,101 psi | 59% | 2589 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,772 psi | 40% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 40,161 psi | 64% | 2589 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 30,560 psi | 49% | 2438 fps | 98% |
| IMR 4064 | <<locked>> | 94% | 44,237 psi | 71% | 2651 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 40,973 psi | 66% | 2530 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 39,682 psi | 64% | 2628 fps | 95% |
| IMR 8208 XBR | <<locked>> | 82% | 36,114 psi | 58% | 2487 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 45,643 psi | 73% | 2680 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 37,231 psi | 60% | 2516 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 82% | 31,604 psi | 51% | 2438 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 52,779 psi | 85% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 42,583 psi | 68% | 2572 fps | 95.6% |
| Lovex S062 | <<locked>> | 88% | 36,056 psi | 58% | 2507 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 45,107 psi | 72% | 2621 fps | 100% |
| Norma 201 | <<locked>> | 84% | 35,563 psi | 57% | 2477 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 31,125 psi | 50% | 2398 fps | 96.3% |
| Norma 203B | <<locked>> | 92% | 40,480 psi | 65% | 2635 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 94% | 43,381 psi | 70% | 2700 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 42,467 psi | 68% | 2654 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 42,076 psi | 67% | 2589 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,831 psi | 40% | 1535 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,956 psi | 61% | 2530 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 42,844 psi | 69% | 2740 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 35,839 psi | 57% | 2595 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 34,896 psi | 56% | 2448 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 86% | 35,839 psi | 57% | 2477 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 96% | 39,465 psi | 63% | 2618 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 80% | 45,643 psi | 73% | 2680 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 31,604 psi | 51% | 2438 fps | 95.7% |
| Shooters World Precision | <<locked>> | 88% | 36,056 psi | 58% | 2507 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,219 psi | 64% | 2539 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,051 psi | 77% | 2388 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,438 psi | 68% | 2635 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 41,843 psi | 67% | 2677 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,480 psi | 65% | 2562 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 50,908 psi | 82% | 2766 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 42,395 psi | 68% | 2641 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,359 psi | 53% | 2369 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,021 psi | 43% | 2231 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 35,781 psi | 57% | 2507 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 32,721 psi | 52% | 2372 fps | 97.6% |
| Somchem S341 | <<locked>> | 88% | 40,988 psi | 66% | 2602 fps | 95% |
| Somchem S355 | <<locked>> | 94% | 38,464 psi | 62% | 2582 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 47,036 psi | 75% | 2575 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,956 psi | 61% | 2467 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,214 psi | 53% | 2382 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 28,195 psi | 45% | 2336 fps | 98.1% |
| Vihtavuori N140 | <<locked>> | 80% | 29,501 psi | 47% | 2339 fps | 96% |
| Vihtavuori N150 | <<locked>> | 92% | 34,606 psi | 55% | 2474 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 82% | 35,824 psi | 57% | 2480 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 82% | 30,066 psi | 48% | 2365 fps | 95.6% |
| Winchester 748 | 49.2 gr | 82% | 34,447 psi | 55% | 2510 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 38,711 psi | 62% | 2589 fps | 95.2% |
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 87 powders for .338 RCM loaded with the .338 | 180gr | Nosler AccuBond. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,976 fps. Accurate 2495 gives the best case fill at 100 %, and 87 of the 87 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 180.0 gr projectile in 0.338" calls for a 1:15.0 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, Winchester 748 rank at the top here: for .338 RCM with the .338 | 180gr | Nosler AccuBond 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.