Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 170gr | Reichenberg HDB Universal bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-26.
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 2495 | <<locked>> | 84% | 54,810 psi | 90% | 3051 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 53,330 psi | 88% | 3054 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,517 psi | 83% | 3077 fps | 98.3% |
| Accurate 4064 | <<locked>> | 84% | 51,779 psi | 85% | 3054 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 52,605 psi | 86% | 3146 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 54,795 psi | 90% | 3140 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 52,663 psi | 86% | 3087 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 54,186 psi | 89% | 3186 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 51,488 psi | 85% | 3202 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 53,127 psi | 87% | 3110 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,316 psi | 88% | 3130 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,664 psi | 88% | 3212 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,013 psi | 90% | 3245 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,534 psi | 88% | 3173 fps | 96.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,604 psi | 83% | 3159 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,572 psi | 78% | 3104 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,481 psi | 68% | 2995 fps | 97% |
| Alliant Reloder-26 | <<locked>> | 98% | 51,024 psi | 84% | 3238 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,969 psi | 90% | 3153 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 53,780 psi | 88% | 3123 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,604 psi | 83% | 3159 fps | 96.1% |
| Bofors RP7 | <<locked>> | 90% | 53,577 psi | 88% | 3100 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 86% | 54,404 psi | 89% | 3140 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 90% | 51,576 psi | 85% | 3140 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 88% | 51,634 psi | 85% | 3100 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 53,882 psi | 88% | 3133 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 52,083 psi | 86% | 3127 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 51,764 psi | 85% | 3169 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,926 psi | 59% | 2008 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,982 psi | 87% | 3097 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 52,011 psi | 85% | 3071 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,969 psi | 90% | 3104 fps | 98.2% |
| IMR 4350 | <<locked>> | 94% | 54,578 psi | 90% | 3130 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 51,996 psi | 85% | 3074 fps | 97.6% |
| IMR 4831 | <<locked>> | 94% | 53,200 psi | 87% | 3140 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 54,737 psi | 90% | 3163 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,911 psi | 90% | 3110 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,780 psi | 88% | 3064 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 52,025 psi | 85% | 3064 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 51,851 psi | 85% | 3071 fps | 98.7% |
| Lovex S070 | <<locked>> | 92% | 53,026 psi | 87% | 3107 fps | 98.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,597 psi | 68% | 2904 fps | 96.2% |
| Norma 201 | <<locked>> | 82% | 53,229 psi | 87% | 3077 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,143 psi | 89% | 3081 fps | 100% |
| Norma 203B | <<locked>> | 84% | 52,620 psi | 86% | 3117 fps | 99.9% |
| Norma 204 | <<locked>> | 92% | 51,735 psi | 85% | 3117 fps | 95.9% |
| Norma MRPᴾ | <<locked>> | 100% | 53,940 psi | 89% | 3258 fps | 98.2% |
| Norma URP | <<locked>> | 92% | 51,663 psi | 85% | 3133 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 84% | 53,534 psi | 88% | 3140 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,143 psi | 89% | 3186 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,419 psi | 60% | 2054 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,607 psi | 90% | 3123 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,215 psi | 89% | 3202 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,607 psi | 90% | 3241 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 52,736 psi | 87% | 3166 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 51,619 psi | 85% | 3196 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 84% | 53,983 psi | 89% | 3081 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,795 psi | 88% | 3117 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 52,417 psi | 86% | 3153 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 90% | 53,577 psi | 88% | 3100 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 51,851 psi | 85% | 3071 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,911 psi | 90% | 3110 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 52,025 psi | 85% | 3064 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 53,026 psi | 87% | 3107 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 52,286 psi | 86% | 3127 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 53,330 psi | 88% | 3107 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,288 psi | 89% | 3018 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 51,924 psi | 85% | 2966 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 51,547 psi | 85% | 3015 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 51,938 psi | 85% | 3146 fps | 96.4% |
| Somchem S335 | <<locked>> | 82% | 53,925 psi | 89% | 3012 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,983 psi | 89% | 3117 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 54,360 psi | 89% | 3196 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 53,200 psi | 87% | 3130 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 82% | 54,853 psi | 90% | 2999 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,244 psi | 89% | 3045 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,897 psi | 90% | 3061 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 51,895 psi | 85% | 3038 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 53,925 psi | 89% | 3133 fps | 99.6% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 3035 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 84% | 53,011 psi | 87% | 3048 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 52,968 psi | 87% | 3130 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,171 psi | 87% | 3189 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 53,824 psi | 88% | 3097 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 51,750 psi | 85% | 3140 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,873 psi | 70% | 3140 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 53,490 psi | 88% | 3114 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,708 psi | 88% | 3123 fps | 96.5% |
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 2495 | <<locked>> | 80% | 47,790 psi | 78% | 2946 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,514 psi | 76% | 2930 fps | 95.6% |
| Accurate 3100 | <<locked>> | 92% | 37,971 psi | 62% | 2822 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 45,266 psi | 74% | 2943 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,026 psi | 56% | 2753 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 51,256 psi | 84% | 3081 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 43,482 psi | 71% | 2913 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 50,720 psi | 83% | 3120 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,819 psi | 79% | 3130 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,743 psi | 72% | 2940 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,746 psi | 77% | 3012 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,823 psi | 56% | 2772 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,363 psi | 63% | 2917 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 96% | 50,024 psi | 82% | 3107 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 47,166 psi | 77% | 3094 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,791 psi | 49% | 2667 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 98% | 38,769 psi | 64% | 2923 fps | 95.9% |
| Alliant Reloder-26 | 92.6 gr | 88% | 34,780 psi | 57% | 2864 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,271 psi | 84% | 3091 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 43,772 psi | 72% | 2946 fps | 99.7% |
| Bofors RP5 | <<locked>> | 98% | 47,166 psi | 77% | 3094 fps | 95.1% |
| Bofors RP7 | <<locked>> | 84% | 44,106 psi | 72% | 2913 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 44,295 psi | 73% | 2949 fps | 98% |
| Hodgdon H414 | <<locked>> | 84% | 41,930 psi | 69% | 2943 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 48,298 psi | 79% | 3035 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,241 psi | 51% | 2661 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,472 psi | 80% | 3064 fps | 100% |
| Hodgdon Superformance | 93.4 gr | 86% | 44,628 psi | 73% | 3025 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 44% | 1798 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,734 psi | 82% | 3038 fps | 99.9% |
| IMR 4064 | <<locked>> | 80% | 45,672 psi | 75% | 2953 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,182 psi | 79% | 2979 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 45,005 psi | 74% | 2953 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,960 psi | 71% | 2894 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 32,967 psi | 54% | 2710 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 47,950 psi | 79% | 3045 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 51,271 psi | 84% | 3054 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,502 psi | 83% | 3005 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 45,759 psi | 75% | 2953 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 37,565 psi | 62% | 2772 fps | 95.2% |
| Lovex S070 | <<locked>> | 84% | 40,959 psi | 67% | 2867 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 38,812 psi | 64% | 2841 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 49,951 psi | 82% | 3022 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,792 psi | 83% | 3028 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,108 psi | 76% | 2995 fps | 99.5% |
| Norma 204 | <<locked>> | 90% | 48,240 psi | 79% | 3051 fps | 95% |
| Norma MRP | <<locked>> | 94% | 43,265 psi | 71% | 3041 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 34,287 psi | 56% | 2759 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 46,427 psi | 76% | 3015 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 41,191 psi | 68% | 2933 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 45% | 1841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,614 psi | 73% | 2933 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,531 psi | 83% | 3136 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,872 psi | 67% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 36,593 psi | 60% | 2835 fps | 96% |
| ReloadSwiss RS 70 | 85.5 gr | 82% | 35,955 psi | 59% | 2841 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 47,500 psi | 78% | 2969 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,089 psi | 67% | 2881 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 96% | 49,008 psi | 80% | 3087 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 44,106 psi | 72% | 2913 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,565 psi | 62% | 2772 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,271 psi | 84% | 3054 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,759 psi | 75% | 2953 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 40,959 psi | 67% | 2867 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,467 psi | 70% | 2940 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,922 psi | 82% | 3045 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,039 psi | 84% | 2966 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,917 psi | 70% | 2815 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 42,163 psi | 69% | 2831 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 48,559 psi | 80% | 3081 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 50,691 psi | 83% | 2959 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,539 psi | 68% | 2884 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 30,705 psi | 50% | 2703 fps | 97.5% |
| Somchem S385 | <<locked>> | 92% | 43,424 psi | 71% | 2940 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 51,590 psi | 85% | 2953 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,645 psi | 78% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,138 psi | 79% | 2953 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,726 psi | 65% | 2812 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 35,665 psi | 59% | 2762 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 98% | 45,876 psi | 75% | 2976 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 46,427 psi | 76% | 2940 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,172 psi | 58% | 2756 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 32,793 psi | 54% | 2753 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,244 psi | 58% | 2733 fps | 98.1% |
| Winchester 760 | <<locked>> | 84% | 42,076 psi | 69% | 2946 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 30,168 psi | 50% | 2766 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,850 psi | 82% | 3051 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,763 psi | 82% | 3054 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 102 powders for .338 Lapua Mag. loaded with the .338 | 170gr | Reichenberg HDB Universal. Norma MRP delivers the highest muzzle velocity at 3,258 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,258 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.338" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-26 rank at the top here: for .338 Lapua Mag. with the .338 | 170gr | Reichenberg HDB Universal they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.