Load Specifications
Load data in caliber .338 Win Mag. with .338 | 180gr | CutEdge ESP Raptor bullet and 89 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, ReloadSwiss RS 52 and Hodgdon CFE223.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 54,636 psi | 88% | 2825 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 55,608 psi | 89% | 2920 fps | 98.3% |
| Accurate 2230 | <<locked>> | 84% | 56,231 psi | 90% | 2927 fps | 98.6% |
| Accurate 2460 | <<locked>> | 88% | 53,185 psi | 85% | 2844 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 54,331 psi | 87% | 2874 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 54,520 psi | 87% | 2904 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 53,795 psi | 86% | 2907 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 55,550 psi | 89% | 2779 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 55,970 psi | 90% | 2802 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 53,751 psi | 86% | 2900 fps | 98.7% |
| ADI AR 2207 | <<locked>> | 82% | 53,258 psi | 85% | 2756 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 54,679 psi | 88% | 2890 fps | 98.2% |
| ADI AR 2219 | <<locked>> | 86% | 55,680 psi | 89% | 2897 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 53,243 psi | 85% | 2861 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 94% | 55,709 psi | 89% | 2897 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 54,520 psi | 87% | 2969 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 53,301 psi | 85% | 2999 fps | 97.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 53,272 psi | 85% | 2910 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 88% | 54,592 psi | 88% | 2835 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 54,433 psi | 87% | 2930 fps | 98.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,456 psi | 76% | 2900 fps | 98.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 54,273 psi | 87% | 2772 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,418 psi | 87% | 2772 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 53,490 psi | 86% | 2910 fps | 97.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 53,621 psi | 86% | 2923 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 92% | 55,695 psi | 89% | 2854 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 94% | 55,129 psi | 88% | 2940 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 90% | 53,476 psi | 86% | 2976 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 88% | 53,940 psi | 86% | 2874 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 55,245 psi | 89% | 2900 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2933 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 82% | 54,244 psi | 87% | 2782 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 54,215 psi | 87% | 2913 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 56,275 psi | 90% | 2995 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,837 psi | 54% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 55,767 psi | 89% | 2917 fps | 99.2% |
| IMR 3031 | <<locked>> | 94% | 52,895 psi | 85% | 2907 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 54,186 psi | 87% | 2877 fps | 98.4% |
| IMR 4198 | <<locked>> | 88% | 55,448 psi | 89% | 2802 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 55,811 psi | 89% | 2966 fps | 99% |
| IMR 8208 XBR | <<locked>> | 92% | 53,243 psi | 85% | 2861 fps | 99.4% |
| Lovex D073.4 | <<locked>> | 82% | 53,026 psi | 85% | 2854 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 88% | 53,011 psi | 85% | 2848 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 96% | 55,956 psi | 90% | 2933 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 54,534 psi | 87% | 2838 fps | 98.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 56,405 psi | 90% | 2923 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 54,447 psi | 87% | 2808 fps | 100% |
| Norma 201 | <<locked>> | 96% | 55,564 psi | 89% | 2897 fps | 99.6% |
| Norma 202 | <<locked>> | 96% | 55,941 psi | 90% | 2907 fps | 100% |
| Norma 203B | <<locked>> | 98% | 53,447 psi | 86% | 2920 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 98% | 54,027 psi | 87% | 2943 fps | 98.6% |
| Ramshot TAC | <<locked>> | 92% | 54,201 psi | 87% | 2871 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 94% | 56,362 psi | 90% | 2943 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 90% | 54,984 psi | 88% | 2867 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,968 psi | 54% | 1772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 53,214 psi | 85% | 2854 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,041 psi | 87% | 2995 fps | 98.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,807 psi | 81% | 2976 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 94% | 56,405 psi | 90% | 2887 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 55,941 psi | 90% | 2894 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 49,588 psi | 80% | 2854 fps | 98.7% |
| Shooters World AR Plus | <<locked>> | 82% | 53,026 psi | 85% | 2854 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 55,956 psi | 90% | 2933 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 56,405 psi | 90% | 2923 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 53,432 psi | 86% | 2825 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 55,941 psi | 90% | 2536 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 55,898 psi | 90% | 2904 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2917 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 55,709 psi | 89% | 2854 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 55,347 psi | 89% | 2894 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 55,622 psi | 89% | 2923 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 54,882 psi | 88% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 54,157 psi | 87% | 2795 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 54,592 psi | 88% | 2900 fps | 99.7% |
| Somchem S335 | <<locked>> | 94% | 53,722 psi | 86% | 2805 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 54,810 psi | 88% | 2890 fps | 98.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 50,618 psi | 81% | 2858 fps | 98.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,027 psi | 58% | 2661 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 82% | 53,214 psi | 85% | 2707 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 54,694 psi | 88% | 2782 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 54,665 psi | 88% | 2795 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 54,534 psi | 87% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,200 psi | 85% | 2841 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,965 psi | 79% | 2795 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 92% | 53,722 psi | 86% | 2861 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 98% | 54,665 psi | 88% | 2881 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,831 psi | 72% | 2726 fps | 97.5% |
| Winchester 748 | <<locked>> | 92% | 52,475 psi | 84% | 2907 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 96% | 55,100 psi | 88% | 2930 fps | 99.3% |
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% | 37,188 psi | 60% | 2536 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 48,515 psi | 78% | 2802 fps | 97% |
| Accurate 2230 | <<locked>> | 80% | 48,733 psi | 78% | 2805 fps | 97.5% |
| Accurate 2460 | <<locked>> | 80% | 40,176 psi | 64% | 2625 fps | 99% |
| Accurate 2495 | <<locked>> | 80% | 29,225 psi | 47% | 2418 fps | 99% |
| Accurate 2520 | <<locked>> | 80% | 35,679 psi | 57% | 2569 fps | 97.8% |
| Accurate 4064 | <<locked>> | 80% | 27,731 psi | 44% | 2388 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 80% | 46,021 psi | 74% | 2635 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,383 psi | 74% | 2651 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 38,914 psi | 62% | 2628 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 50,024 psi | 80% | 2710 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 40,147 psi | 64% | 2631 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 45,339 psi | 73% | 2740 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,216 psi | 58% | 2543 fps | 96.1% |
| Alliant AR-Comp | <<locked>> | 80% | 34,635 psi | 56% | 2562 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,568 psi | 67% | 2736 fps | 97% |
| Alliant Power Pro 2000-MR | 60.7 gr | 90% | 43,453 psi | 70% | 2812 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 36,260 psi | 58% | 2595 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,656 psi | 68% | 2651 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 39,436 psi | 63% | 2661 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 38,754 psi | 62% | 2717 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 51,053 psi | 82% | 2726 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,962 psi | 72% | 2631 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 43,584 psi | 70% | 2736 fps | 95.6% |
| Bofors RP3 | <<locked>> | 88% | 35,389 psi | 57% | 2589 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,406 psi | 62% | 2549 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,866 psi | 54% | 2543 fps | 96% |
| Hodgdon CFE223 | 56.6 gr | 82% | 40,364 psi | 65% | 2733 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 41,408 psi | 66% | 2667 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 41,945 psi | 67% | 2684 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 94% | 45,455 psi | 73% | 2762 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 50,749 psi | 81% | 2730 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 36,796 psi | 59% | 2589 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 35,027 psi | 56% | 2592 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,106 psi | 40% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 38,072 psi | 61% | 2598 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 32,953 psi | 53% | 2543 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 39,407 psi | 63% | 2612 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 43,772 psi | 70% | 2625 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 37,739 psi | 61% | 2638 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 36,216 psi | 58% | 2543 fps | 96.1% |
| Lovex D073.4 | <<locked>> | 80% | 49,226 psi | 79% | 2795 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 40,030 psi | 64% | 2625 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,082 psi | 51% | 2493 fps | 96.7% |
| Lovex S060 | <<locked>> | 82% | 37,768 psi | 61% | 2530 fps | 95.1% |
| Lovex S062 | <<locked>> | 84% | 34,084 psi | 55% | 2510 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 47,863 psi | 77% | 2713 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,344 psi | 53% | 2477 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 33,417 psi | 54% | 2500 fps | 97.8% |
| Norma 203B | <<locked>> | 88% | 38,725 psi | 62% | 2648 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 88% | 38,493 psi | 62% | 2657 fps | 95% |
| Ramshot TAC | <<locked>> | 90% | 50,633 psi | 81% | 2812 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 40,234 psi | 65% | 2664 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,421 psi | 63% | 2589 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,135 psi | 40% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,799 psi | 65% | 2641 fps | 98.6% |
| ReloadSwiss RS 52 | 57.5 gr | 88% | 40,959 psi | 66% | 2759 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 31,763 psi | 51% | 2546 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 36,840 psi | 59% | 2543 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 33,750 psi | 54% | 2480 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 90% | 35,331 psi | 57% | 2579 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 49,226 psi | 79% | 2795 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,082 psi | 51% | 2493 fps | 96.7% |
| Shooters World Precision | <<locked>> | 84% | 34,084 psi | 55% | 2510 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,236 psi | 69% | 2651 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,314 psi | 81% | 2464 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,716 psi | 73% | 2743 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,914 psi | 64% | 2694 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,439 psi | 70% | 2667 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 48,138 psi | 77% | 2779 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,608 psi | 60% | 2595 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,447 psi | 57% | 2467 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,761 psi | 46% | 2323 fps | 97.3% |
| Somchem S321 | <<locked>> | 80% | 38,682 psi | 62% | 2618 fps | 97.2% |
| Somchem S335 | <<locked>> | 80% | 34,679 psi | 56% | 2467 fps | 98.7% |
| Somchem S341 | <<locked>> | 84% | 38,725 psi | 62% | 2612 fps | 95.3% |
| Somchem S355 | <<locked>> | 90% | 36,724 psi | 59% | 2592 fps | 95.4% |
| Somchem S365 | <<locked>> | 98% | 33,910 psi | 54% | 2608 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 49,980 psi | 80% | 2661 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,393 psi | 65% | 2559 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,476 psi | 57% | 2477 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 30,429 psi | 49% | 2434 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 31,604 psi | 51% | 2438 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 88% | 32,822 psi | 53% | 2480 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 36,071 psi | 58% | 2539 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 30,240 psi | 48% | 2415 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 39,233 psi | 63% | 2615 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 34,737 psi | 56% | 2569 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,521 psi | 59% | 2592 fps | 95.4% |
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 113 powders for .338 Win Mag. loaded with the .338 | 180gr | CutEdge ESP Raptor. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,999 fps. Accurate 4064 gives the best case fill at 100 %, and 113 of the 113 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 1:10.5 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, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for .338 Win Mag. with the .338 | 180gr | CutEdge ESP Raptor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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.