Load Specifications
Load data in caliber .338 Weatherby RPM with .338 | 160gr | Barnes TTSX FB 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 2000-MR 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% | 57,348 psi | 88% | 2982 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 57,029 psi | 88% | 3054 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 58,479 psi | 90% | 3163 fps | 98% |
| Accurate 2230 | <<locked>> | 84% | 55,521 psi | 85% | 3110 fps | 97.9% |
| Accurate 2460 | <<locked>> | 90% | 55,970 psi | 86% | 3077 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 57,130 psi | 88% | 3107 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 57,580 psi | 89% | 3140 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,881 psi | 81% | 3087 fps | 100% |
| Accurate LT-30 | <<locked>> | 88% | 58,218 psi | 90% | 3012 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 58,697 psi | 90% | 3038 fps | 100% |
| ADI APS 450 | <<locked>> | 82% | 58,595 psi | 90% | 2343 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 56,318 psi | 87% | 3133 fps | 98.5% |
| ADI AR 2207 | <<locked>> | 84% | 55,666 psi | 86% | 2989 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 54,041 psi | 83% | 3068 fps | 97.5% |
| ADI AR 2219 | <<locked>> | 88% | 58,624 psi | 90% | 3140 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 56,014 psi | 86% | 3097 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 96% | 58,624 psi | 90% | 3140 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 57,159 psi | 88% | 3209 fps | 99.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 56,391 psi | 87% | 3238 fps | 97.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 52,663 psi | 81% | 3087 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 90% | 57,188 psi | 88% | 3074 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 57,290 psi | 88% | 3166 fps | 98.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,644 psi | 72% | 3058 fps | 97.1% |
| Alliant Reloder-7 | <<locked>> | 84% | 56,826 psi | 87% | 3009 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 57,363 psi | 88% | 3002 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 56,376 psi | 87% | 3143 fps | 97.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 52,576 psi | 81% | 3094 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 94% | 58,494 psi | 90% | 3087 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 96% | 58,291 psi | 90% | 3179 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 92% | 56,565 psi | 87% | 3222 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 90% | 56,695 psi | 87% | 3114 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 58,146 psi | 89% | 3140 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 54,940 psi | 85% | 3107 fps | 96.5% |
| Hodgdon H4198 | <<locked>> | 84% | 56,898 psi | 88% | 3018 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 56,753 psi | 87% | 3146 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 55,317 psi | 85% | 3173 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,620 psi | 52% | 1870 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 58,813 psi | 90% | 3156 fps | 99.1% |
| IMR 3031 | <<locked>> | 96% | 55,419 psi | 85% | 3146 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 56,956 psi | 88% | 3107 fps | 98.1% |
| IMR 4198 | <<locked>> | 90% | 57,870 psi | 89% | 3038 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 58,740 psi | 90% | 3205 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 94% | 56,014 psi | 86% | 3097 fps | 99.3% |
| Lovex D073.4 | <<locked>> | 84% | 55,941 psi | 86% | 3091 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 90% | 56,028 psi | 86% | 3084 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 96% | 54,897 psi | 84% | 3110 fps | 99.9% |
| Lovex S053 | <<locked>> | 82% | 58,204 psi | 90% | 2927 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 57,029 psi | 88% | 3064 fps | 98.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 55,709 psi | 86% | 3104 fps | 99.3% |
| Norma 200 | <<locked>> | 86% | 57,087 psi | 88% | 3045 fps | 100% |
| Norma 201 | <<locked>> | 98% | 58,276 psi | 90% | 3133 fps | 99.5% |
| Norma 202 | <<locked>> | 96% | 55,332 psi | 85% | 3094 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 56,275 psi | 87% | 3153 fps | 98.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 57,334 psi | 88% | 3182 fps | 98.5% |
| Ramshot TAC | <<locked>> | 94% | 57,072 psi | 88% | 3100 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 94% | 55,753 psi | 86% | 3123 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 92% | 57,783 psi | 89% | 3097 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,852 psi | 52% | 1916 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 55,825 psi | 86% | 3087 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 57,072 psi | 88% | 3238 fps | 98.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,980 psi | 77% | 3143 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 94% | 55,506 psi | 85% | 3071 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 58,566 psi | 90% | 3123 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 48,689 psi | 75% | 3018 fps | 97.9% |
| Shooters World AR Plus | <<locked>> | 84% | 55,941 psi | 86% | 3091 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 54,897 psi | 84% | 3110 fps | 99.9% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 55,709 psi | 86% | 3104 fps | 99.3% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 56,376 psi | 87% | 3058 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 58,305 psi | 90% | 2759 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 55,114 psi | 85% | 3087 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 51,198 psi | 79% | 3091 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 58,668 psi | 90% | 3100 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 58,552 psi | 90% | 3130 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 58,624 psi | 90% | 3156 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 57,595 psi | 89% | 3035 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 53,417 psi | 82% | 2976 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 57,566 psi | 89% | 3136 fps | 99.6% |
| Somchem S335 | <<locked>> | 96% | 56,260 psi | 87% | 3031 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 57,812 psi | 89% | 3123 fps | 98.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,879 psi | 77% | 3028 fps | 97.9% |
| Vihtavuori N120 | <<locked>> | 84% | 55,593 psi | 86% | 2936 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 57,290 psi | 88% | 3015 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 57,232 psi | 88% | 3025 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 57,130 psi | 88% | 3100 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 55,941 psi | 86% | 3071 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,109 psi | 74% | 2963 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 94% | 56,869 psi | 87% | 3100 fps | 99.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 57,870 psi | 89% | 3117 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,237 psi | 68% | 2881 fps | 96.4% |
| Winchester 748 | <<locked>> | 94% | 55,535 psi | 85% | 3143 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 98% | 58,465 psi | 90% | 3173 fps | 99.1% |
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% | 53,519 psi | 82% | 2927 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 36,579 psi | 56% | 2700 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 47,732 psi | 73% | 2972 fps | 95.9% |
| Accurate 2230 | <<locked>> | 80% | 47,863 psi | 74% | 2976 fps | 96.4% |
| Accurate 2460 | <<locked>> | 80% | 39,537 psi | 61% | 2789 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 28,514 psi | 44% | 2556 fps | 98.1% |
| Accurate 2520 | <<locked>> | 80% | 34,867 psi | 54% | 2717 fps | 96.7% |
| Accurate 4064 | <<locked>> | 82% | 29,008 psi | 45% | 2582 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 45,440 psi | 70% | 2808 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 45,803 psi | 70% | 2825 fps | 99.1% |
| ADI APS 450 | <<locked>> | 80% | 56,623 psi | 87% | 2316 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 40,944 psi | 63% | 2844 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 49,269 psi | 76% | 2897 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 44,802 psi | 69% | 2900 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 44,382 psi | 68% | 2907 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 37,985 psi | 58% | 2753 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 33,910 psi | 52% | 2723 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,683 psi | 63% | 2897 fps | 95.8% |
| Alliant Power Pro 2000-MR | 67.3 gr | 92% | 45,730 psi | 70% | 3035 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 37,913 psi | 58% | 2799 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,698 psi | 64% | 2818 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 44,164 psi | 68% | 2933 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 40,857 psi | 63% | 2930 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,270 psi | 77% | 2910 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,193 psi | 68% | 2795 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 45,963 psi | 71% | 2959 fps | 95.2% |
| Bofors RP3 | <<locked>> | 90% | 37,188 psi | 57% | 2795 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,869 psi | 58% | 2707 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,737 psi | 55% | 2753 fps | 95.7% |
| Hodgdon CFE223 | 64.4 gr | 86% | 45,643 psi | 70% | 3022 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 40,596 psi | 62% | 2831 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 80% | 41,191 psi | 63% | 2848 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 98% | 51,285 psi | 79% | 3045 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 50,067 psi | 77% | 2910 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 84% | 38,551 psi | 59% | 2799 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 39,334 psi | 61% | 2864 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,831 psi | 38% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 39,943 psi | 61% | 2812 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 32,300 psi | 50% | 2694 fps | 98.3% |
| IMR 4064 | <<locked>> | 92% | 44,063 psi | 68% | 2881 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 43,018 psi | 66% | 2802 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 42,264 psi | 65% | 2907 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 82% | 37,985 psi | 58% | 2753 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 48,530 psi | 75% | 2972 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 39,233 psi | 60% | 2779 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 31,285 psi | 48% | 2635 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 55,027 psi | 85% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 42,105 psi | 65% | 2795 fps | 95.5% |
| Lovex S062 | <<locked>> | 86% | 35,752 psi | 55% | 2717 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 46,978 psi | 72% | 2894 fps | 100% |
| Norma 201 | <<locked>> | 84% | 37,260 psi | 57% | 2736 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 32,692 psi | 50% | 2648 fps | 96.7% |
| Norma 203B | <<locked>> | 90% | 40,524 psi | 62% | 2858 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 92% | 43,424 psi | 67% | 2933 fps | 95.6% |
| Ramshot TAC | <<locked>> | 92% | 53,345 psi | 82% | 3038 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 42,308 psi | 65% | 2877 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 41,524 psi | 64% | 2802 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,961 psi | 38% | 1716 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,074 psi | 62% | 2802 fps | 97.7% |
| ReloadSwiss RS 52 | 63.8 gr | 90% | 43,062 psi | 66% | 2979 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,621 psi | 55% | 2815 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 36,129 psi | 56% | 2697 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 86% | 37,637 psi | 58% | 2736 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 94% | 39,842 psi | 61% | 2844 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 80% | 48,530 psi | 75% | 2972 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,285 psi | 48% | 2635 fps | 95.3% |
| Shooters World Precision | <<locked>> | 86% | 35,752 psi | 55% | 2717 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,511 psi | 65% | 2815 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,734 psi | 77% | 2644 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,918 psi | 69% | 2913 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 42,076 psi | 65% | 2910 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,641 psi | 66% | 2838 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 50,850 psi | 78% | 3005 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 42,192 psi | 65% | 2864 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,824 psi | 54% | 2618 fps | 97.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,210 psi | 43% | 2464 fps | 96.1% |
| Somchem S321 | <<locked>> | 80% | 37,884 psi | 58% | 2769 fps | 96% |
| Somchem S335 | <<locked>> | 80% | 34,011 psi | 52% | 2615 fps | 97.9% |
| Somchem S341 | <<locked>> | 86% | 40,901 psi | 63% | 2825 fps | 95% |
| Somchem S355 | <<locked>> | 92% | 38,450 psi | 59% | 2799 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 49,298 psi | 76% | 2844 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,711 psi | 61% | 2726 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,838 psi | 54% | 2631 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 29,747 psi | 46% | 2582 fps | 98.4% |
| Vihtavuori N140 | <<locked>> | 80% | 30,850 psi | 47% | 2579 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 90% | 34,360 psi | 53% | 2680 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 82% | 37,811 psi | 58% | 2743 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 29,646 psi | 46% | 2556 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 41,321 psi | 64% | 2822 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 34,069 psi | 52% | 2717 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 38,566 psi | 59% | 2805 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 Weatherby RPM loaded with the .338 | 160gr | Barnes TTSX FB. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,238 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,238 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 (448 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.338" calls for a 1:14.0 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 2000-MR, ReloadSwiss RS 52 rank at the top here: for .338 Weatherby RPM with the .338 | 160gr | Barnes TTSX FB 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.