Load Specifications
Load data in caliber .338 Win Mag. with .338 | 165gr | Impala LWHV LS bullet and 82 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 LEVERevolution.
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>> | 88% | 53,809 psi | 86% | 2933 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 56,347 psi | 90% | 3061 fps | 98% |
| Accurate 2460 | <<locked>> | 86% | 55,637 psi | 89% | 3002 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 55,303 psi | 89% | 3002 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,258 psi | 85% | 3002 fps | 99.9% |
| Accurate 4064 | <<locked>> | 96% | 54,534 psi | 87% | 3035 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 56,057 psi | 90% | 2917 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 56,434 psi | 90% | 2940 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,492 psi | 89% | 3054 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 98% | 55,999 psi | 90% | 3038 fps | 98.1% |
| ADI AR 2219 | <<locked>> | 82% | 53,272 psi | 85% | 2992 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,679 psi | 88% | 3009 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 90% | 54,143 psi | 87% | 3009 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 56,159 psi | 90% | 3123 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,636 psi | 88% | 3153 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,448 psi | 89% | 3064 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,490 psi | 86% | 2943 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 56,391 psi | 90% | 3087 fps | 98.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,489 psi | 84% | 3114 fps | 98.7% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,172 psi | 88% | 2910 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,940 psi | 88% | 3058 fps | 97.6% |
| Bofors RP3 | <<locked>> | 98% | 56,231 psi | 90% | 3087 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,882 psi | 86% | 2953 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 90% | 53,795 psi | 86% | 3041 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 88% | 54,882 psi | 88% | 3130 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 86% | 55,187 psi | 88% | 3022 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,156 psi | 85% | 2995 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,346 psi | 87% | 3035 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 92% | 55,956 psi | 90% | 3068 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,250 psi | 68% | 2835 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,143 psi | 87% | 3091 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,838 psi | 56% | 1847 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,780 psi | 86% | 3015 fps | 98.8% |
| IMR 3031 | <<locked>> | 92% | 54,911 psi | 88% | 3064 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,651 psi | 89% | 3025 fps | 98.3% |
| IMR 4198 | <<locked>> | 86% | 56,173 psi | 90% | 2943 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 54,520 psi | 87% | 3071 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 90% | 54,679 psi | 88% | 3009 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 86% | 55,695 psi | 89% | 3009 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 92% | 54,795 psi | 88% | 3038 fps | 99.9% |
| Lovex S060 | <<locked>> | 92% | 55,651 psi | 89% | 2982 fps | 98.6% |
| Lovex S062 | <<locked>> | 96% | 55,579 psi | 89% | 3035 fps | 99.5% |
| Norma 201 | <<locked>> | 92% | 54,694 psi | 88% | 3005 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 54,650 psi | 88% | 3015 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,463 psi | 89% | 3074 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 96% | 55,651 psi | 89% | 3097 fps | 98.5% |
| Ramshot TAC | <<locked>> | 90% | 55,550 psi | 89% | 3015 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,462 psi | 87% | 3041 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 88% | 56,144 psi | 90% | 3009 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,331 psi | 57% | 1893 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,679 psi | 88% | 3005 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 56,057 psi | 90% | 3156 fps | 98.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,811 psi | 89% | 3186 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 53,417 psi | 86% | 2959 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,158 psi | 88% | 3002 fps | 99.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,767 psi | 89% | 3071 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,795 psi | 88% | 3038 fps | 99.9% |
| Shooters World Precision | <<locked>> | 96% | 55,579 psi | 89% | 3035 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,607 psi | 88% | 2966 fps | 99.1% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,795 psi | 86% | 2999 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,867 psi | 86% | 3074 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,780 psi | 86% | 2959 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 53,592 psi | 86% | 2989 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,882 psi | 86% | 3022 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,345 psi | 86% | 2907 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,883 psi | 90% | 2946 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 56,405 psi | 90% | 3054 fps | 99.6% |
| Somchem S335 | <<locked>> | 92% | 55,593 psi | 89% | 2953 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,260 psi | 90% | 3041 fps | 98.6% |
| Somchem S355 | <<locked>> | 98% | 53,243 psi | 85% | 3018 fps | 98.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,176 psi | 66% | 2887 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 88% | 56,362 psi | 90% | 2933 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 56,202 psi | 90% | 2943 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,766 psi | 86% | 2982 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,984 psi | 88% | 2989 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,404 psi | 87% | 2999 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,312 psi | 77% | 2943 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 90% | 55,361 psi | 89% | 3012 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 94% | 53,359 psi | 86% | 2986 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,617 psi | 80% | 2930 fps | 98.1% |
| Winchester 748 | <<locked>> | 90% | 54,244 psi | 87% | 3058 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,301 psi | 85% | 3028 fps | 98.8% |
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% | 42,438 psi | 68% | 2743 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 52,895 psi | 85% | 3002 fps | 97.4% |
| Accurate 2460 | <<locked>> | 80% | 46,006 psi | 74% | 2838 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 36,071 psi | 58% | 2661 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 41,263 psi | 66% | 2785 fps | 98.6% |
| Accurate 4064 | <<locked>> | 80% | 34,069 psi | 55% | 2635 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 80% | 49,937 psi | 80% | 2822 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,285 psi | 81% | 2841 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 41,321 psi | 66% | 2782 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 88% | 41,901 psi | 67% | 2776 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 49,951 psi | 80% | 2936 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,640 psi | 65% | 2746 fps | 96.9% |
| Alliant AR-Comp | <<locked>> | 80% | 39,450 psi | 63% | 2766 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,615 psi | 75% | 2949 fps | 97.7% |
| Alliant Power Pro 2000-MR | 64.1 gr | 88% | 45,063 psi | 72% | 2959 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 36,579 psi | 59% | 2697 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,543 psi | 76% | 2848 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 41,843 psi | 67% | 2815 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 40,872 psi | 66% | 2871 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,921 psi | 78% | 2815 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 45,368 psi | 73% | 2884 fps | 95.5% |
| Bofors RP3 | <<locked>> | 84% | 36,361 psi | 58% | 2703 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,757 psi | 69% | 2749 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,986 psi | 63% | 2759 fps | 97.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,105 psi | 68% | 2877 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 45,716 psi | 73% | 2864 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 46,746 psi | 75% | 2887 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 47,892 psi | 77% | 2923 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 39,117 psi | 63% | 2740 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 39,740 psi | 64% | 2782 fps | 95.5% |
| Hodgdon LEVERevolution | 58.6 gr | 82% | 37,318 psi | 60% | 2749 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,049 psi | 42% | 1654 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,420 psi | 60% | 2687 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 37,869 psi | 61% | 2759 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 41,553 psi | 67% | 2762 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 47,645 psi | 76% | 2812 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 40,190 psi | 64% | 2795 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,640 psi | 65% | 2746 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 80% | 45,876 psi | 74% | 2841 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,536 psi | 60% | 2717 fps | 97.8% |
| Lovex S060 | <<locked>> | 80% | 39,421 psi | 63% | 2671 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 34,824 psi | 56% | 2618 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 38,566 psi | 62% | 2694 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 38,218 psi | 61% | 2707 fps | 98.5% |
| Norma 203B | <<locked>> | 86% | 41,133 psi | 66% | 2805 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 86% | 40,495 psi | 65% | 2808 fps | 95.1% |
| Ramshot TAC | <<locked>> | 88% | 52,083 psi | 84% | 2956 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,653 psi | 64% | 2756 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,961 psi | 70% | 2792 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,411 psi | 42% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,455 psi | 73% | 2841 fps | 99% |
| ReloadSwiss RS 52 | 60.7 gr | 86% | 43,091 psi | 69% | 2913 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 34,084 psi | 55% | 2707 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,743 psi | 69% | 2762 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 36,811 psi | 59% | 2641 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 86% | 36,448 psi | 58% | 2697 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,536 psi | 60% | 2717 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 34,824 psi | 56% | 2618 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,921 psi | 77% | 2854 fps | 98.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,618 psi | 81% | 2949 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,192 psi | 68% | 2851 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,630 psi | 76% | 2858 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 50,357 psi | 81% | 2933 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 39,610 psi | 64% | 2743 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,726 psi | 64% | 2661 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,808 psi | 53% | 2516 fps | 98.1% |
| Somchem S321 | <<locked>> | 80% | 43,627 psi | 70% | 2828 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 39,508 psi | 63% | 2667 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 40,683 psi | 65% | 2756 fps | 95.3% |
| Somchem S355 | <<locked>> | 86% | 37,304 psi | 60% | 2700 fps | 95% |
| Somchem S365 | <<locked>> | 94% | 34,490 psi | 55% | 2717 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 44,744 psi | 72% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,653 psi | 64% | 2667 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 35,288 psi | 57% | 2644 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 36,071 psi | 58% | 2638 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 84% | 33,373 psi | 54% | 2585 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 98% | 45,339 psi | 73% | 2887 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 40,567 psi | 65% | 2740 fps | 97% |
| Vihtavuori N540 | <<locked>> | 80% | 34,882 psi | 56% | 2625 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 38,653 psi | 62% | 2707 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 39,407 psi | 63% | 2779 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 38,783 psi | 62% | 2746 fps | 95.6% |
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 82 powders for .338 Win Mag. loaded with the .338 | 165gr | Impala LWHV LS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,186 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,186 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.338" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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 LEVERevolution rank at the top here: for .338 Win Mag. with the .338 | 165gr | Impala LWHV LS 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.