Load Specifications
Load data in caliber .338 Blaser Mag. with .338 | 165gr | Impala LWHV LS bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and Alliant Reloder-17.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 54,563 psi | 90% | 3018 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,185 psi | 87% | 3041 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,505 psi | 88% | 3048 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,534 psi | 90% | 3104 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 53,156 psi | 87% | 3091 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,242 psi | 84% | 3130 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 88% | 53,214 psi | 87% | 3104 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 94% | 53,867 psi | 88% | 3094 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 52,315 psi | 86% | 3058 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 86% | 52,228 psi | 86% | 3048 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 53,664 psi | 88% | 3169 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 52,069 psi | 85% | 3202 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 53,635 psi | 88% | 3120 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,143 psi | 89% | 3028 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,433 psi | 89% | 3143 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,719 psi | 82% | 3127 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 53,925 psi | 89% | 3235 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,591 psi | 86% | 3107 fps | 98.2% |
| Bofors RP3 | <<locked>> | 94% | 54,360 psi | 89% | 3140 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,215 psi | 89% | 3041 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,926 psi | 90% | 3143 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 52,330 psi | 86% | 3173 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 82% | 52,765 psi | 87% | 3064 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,766 psi | 88% | 3084 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 52,040 psi | 85% | 3087 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 88% | 53,751 psi | 88% | 3117 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,064 psi | 76% | 3005 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,272 psi | 86% | 3143 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,244 psi | 58% | 1919 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,737 psi | 90% | 3117 fps | 99.5% |
| IMR 3031 | <<locked>> | 88% | 52,968 psi | 87% | 3110 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,592 psi | 88% | 3081 fps | 98.8% |
| IMR 4198 | <<locked>> | 82% | 53,519 psi | 88% | 2979 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,530 psi | 80% | 3064 fps | 97.5% |
| IMR 4895 | <<locked>> | 90% | 52,460 psi | 86% | 3123 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 86% | 52,315 psi | 86% | 3058 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 82% | 52,982 psi | 87% | 3048 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 88% | 52,837 psi | 87% | 3087 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,069 psi | 87% | 3028 fps | 99.1% |
| Lovex S062 | <<locked>> | 92% | 53,519 psi | 88% | 3084 fps | 99.7% |
| Lovex S065 | <<locked>> | 98% | 52,547 psi | 86% | 3061 fps | 96.7% |
| Norma 201 | <<locked>> | 88% | 52,605 psi | 86% | 3054 fps | 99.7% |
| Norma 202 | <<locked>> | 88% | 52,417 psi | 86% | 3061 fps | 100% |
| Norma 203B | <<locked>> | 92% | 53,679 psi | 88% | 3133 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 50,299 psi | 83% | 3117 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 92% | 53,563 psi | 88% | 3146 fps | 99.1% |
| Ramshot TAC | <<locked>> | 86% | 52,707 psi | 87% | 3058 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 51,924 psi | 85% | 3084 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,388 psi | 88% | 3054 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 59% | 1965 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 51,837 psi | 85% | 3041 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,431 psi | 86% | 3061 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,099 psi | 89% | 3209 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,708 psi | 88% | 3245 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,618 psi | 83% | 3146 fps | 97.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,068 psi | 84% | 3159 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 86% | 54,085 psi | 89% | 3051 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 52,997 psi | 87% | 3054 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 96% | 54,215 psi | 89% | 3130 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 52,547 psi | 86% | 3061 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,837 psi | 87% | 3087 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,519 psi | 88% | 3084 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,911 psi | 90% | 3058 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 51,822 psi | 85% | 3127 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,418 psi | 89% | 3045 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,433 psi | 89% | 3091 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,882 psi | 90% | 3123 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,824 psi | 88% | 2995 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,345 psi | 88% | 2989 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 53,621 psi | 88% | 3094 fps | 99.8% |
| Somchem S335 | <<locked>> | 88% | 53,403 psi | 88% | 2999 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 53,737 psi | 88% | 3087 fps | 99.1% |
| Somchem S355 | <<locked>> | 96% | 54,621 psi | 90% | 3127 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,266 psi | 74% | 3064 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 84% | 53,679 psi | 88% | 2966 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 53,635 psi | 88% | 2982 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,911 psi | 90% | 3071 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 52,721 psi | 87% | 3035 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 52,605 psi | 86% | 3054 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,823 psi | 87% | 3114 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 86% | 52,765 psi | 87% | 3058 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 92% | 54,331 psi | 89% | 3081 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,112 psi | 86% | 3120 fps | 97.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,911 psi | 89% | 3097 fps | 99.6% |
| Winchester 748 | <<locked>> | 86% | 52,083 psi | 86% | 3104 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,476 psi | 89% | 3133 fps | 99.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 45,818 psi | 75% | 2877 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,821 psi | 82% | 2986 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,595 psi | 65% | 2805 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,962 psi | 74% | 2940 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 37,362 psi | 61% | 2785 fps | 99.4% |
| Accurate 4350 | <<locked>> | 94% | 42,003 psi | 69% | 2953 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 41,814 psi | 69% | 2877 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 37,855 psi | 62% | 2769 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,656 psi | 72% | 2890 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 43,178 psi | 71% | 2900 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,401 psi | 83% | 3110 fps | 99.1% |
| Alliant Power Pro 2000-MR | 64.9 gr | 82% | 40,263 psi | 66% | 2943 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,360 psi | 58% | 2746 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,097 psi | 84% | 2982 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,782 psi | 62% | 2802 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,684 psi | 68% | 2953 fps | 95.6% |
| Alliant Reloder-17 | 67 gr | 86% | 36,883 psi | 61% | 2864 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,712 psi | 67% | 2871 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 35,128 psi | 58% | 2749 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,527 psi | 75% | 2887 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,308 psi | 69% | 2913 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,861 psi | 75% | 3051 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 80% | 49,545 psi | 81% | 3009 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,357 psi | 83% | 3028 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 43,265 psi | 71% | 2917 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 42,177 psi | 69% | 2894 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 36,289 psi | 60% | 2785 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,029 psi | 62% | 2851 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,382 psi | 43% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,321 psi | 66% | 2838 fps | 97.1% |
| IMR 3031 | <<locked>> | 80% | 41,205 psi | 68% | 2904 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,507 psi | 62% | 2753 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 50,662 psi | 83% | 2933 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 40,335 psi | 66% | 2897 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,667 psi | 63% | 2841 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 80% | 43,656 psi | 72% | 2890 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 80% | 49,734 psi | 82% | 2992 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 41,017 psi | 67% | 2871 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 42,061 psi | 69% | 2815 fps | 97.1% |
| Lovex S062 | <<locked>> | 80% | 37,652 psi | 62% | 2769 fps | 97.3% |
| Lovex S065 | <<locked>> | 94% | 46,804 psi | 77% | 2956 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 41,626 psi | 68% | 2844 fps | 98.2% |
| Norma 202 | <<locked>> | 80% | 41,365 psi | 68% | 2854 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 37,202 psi | 61% | 2792 fps | 95.7% |
| Norma URP | <<locked>> | 94% | 41,974 psi | 69% | 2946 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 36,463 psi | 60% | 2795 fps | 95.1% |
| Ramshot TAC | <<locked>> | 82% | 46,514 psi | 76% | 2943 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,873 psi | 70% | 2910 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,123 psi | 77% | 2936 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 44% | 1759 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,747 psi | 80% | 2986 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 49,429 psi | 81% | 3005 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,986 psi | 64% | 2904 fps | 95.5% |
| ReloadSwiss RS 60 | 62.4 gr | 80% | 32,634 psi | 54% | 2756 fps | 96.7% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,669 psi | 68% | 2966 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 45,020 psi | 74% | 3035 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 45,788 psi | 75% | 2904 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 39,697 psi | 65% | 2792 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 80% | 33,185 psi | 54% | 2690 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 46,804 psi | 77% | 2956 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,017 psi | 67% | 2871 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 37,652 psi | 62% | 2769 fps | 97.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,430 psi | 84% | 3002 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 38,174 psi | 63% | 2844 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,227 psi | 84% | 2992 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 44,962 psi | 74% | 2917 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,335 psi | 66% | 2841 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,612 psi | 70% | 2799 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,404 psi | 58% | 2654 fps | 99.4% |
| Somchem S321 | <<locked>> | 80% | 47,166 psi | 77% | 2979 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 42,482 psi | 70% | 2805 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 41,481 psi | 68% | 2854 fps | 96.8% |
| Somchem S355 | <<locked>> | 80% | 34,113 psi | 56% | 2700 fps | 95.1% |
| Somchem S365 | <<locked>> | 88% | 31,618 psi | 52% | 2723 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 47,892 psi | 79% | 2874 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,554 psi | 70% | 2795 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,479 psi | 63% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,073 psi | 64% | 2782 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 32,256 psi | 53% | 2631 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 41,336 psi | 68% | 2890 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 43,772 psi | 72% | 2887 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,724 psi | 62% | 2766 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 43,323 psi | 71% | 2953 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 34,795 psi | 57% | 2700 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 42,830 psi | 70% | 2933 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,624 psi | 65% | 2844 fps | 97.1% |
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 86 powders for .338 Blaser Mag. loaded with the .338 | 165gr | Impala LWHV LS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 1,919 fps to 3,245 fps. Accurate 4350 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 58–90 %, 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. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 60, Alliant Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for .338 Blaser 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.