Load Specifications
Load data in caliber .375 Blaser Mag. with .375 | 200gr | Sierra Pro-Hunter 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 60, 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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 52,330 psi | 86% | 3031 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,201 psi | 89% | 3104 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,505 psi | 88% | 3097 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 52,214 psi | 86% | 3110 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 53,359 psi | 88% | 3140 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,139 psi | 81% | 3136 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 82% | 55,013 psi | 90% | 3025 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,766 psi | 90% | 3173 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 94% | 52,431 psi | 86% | 3110 fps | 98.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,027 psi | 89% | 3127 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 88% | 54,041 psi | 89% | 3117 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 52,025 psi | 85% | 3186 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,186 psi | 89% | 3284 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 51,938 psi | 85% | 3136 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,982 psi | 85% | 3041 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 52,591 psi | 86% | 3153 fps | 98.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,254 psi | 79% | 3140 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,388 psi | 86% | 3248 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,244 psi | 89% | 3015 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,549 psi | 90% | 3182 fps | 98.5% |
| Bofors RP3 | <<locked>> | 94% | 52,185 psi | 86% | 3146 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 86% | 52,663 psi | 86% | 3061 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 53,055 psi | 87% | 3153 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,781 psi | 90% | 3258 fps | 99% |
| Hodgdon H322 | <<locked>> | 84% | 54,621 psi | 90% | 3133 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 52,083 psi | 86% | 3100 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,664 psi | 88% | 3156 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 88% | 51,909 psi | 85% | 3130 fps | 99.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,295 psi | 73% | 3009 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,143 psi | 89% | 3215 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,766 psi | 57% | 1949 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 53,214 psi | 87% | 3133 fps | 99.4% |
| IMR 3031 | <<locked>> | 90% | 54,592 psi | 90% | 3179 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 51,837 psi | 85% | 3094 fps | 98.6% |
| IMR 4198 | <<locked>> | 82% | 52,402 psi | 86% | 3005 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,659 psi | 77% | 3068 fps | 97.1% |
| IMR 4895 | <<locked>> | 92% | 53,882 psi | 88% | 3192 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 88% | 54,027 psi | 89% | 3127 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 84% | 54,143 psi | 89% | 3114 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,041 psi | 89% | 3150 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,824 psi | 90% | 3100 fps | 99.3% |
| Lovex S062 | <<locked>> | 94% | 54,795 psi | 90% | 3150 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,998 psi | 89% | 3130 fps | 97.1% |
| Norma 201 | <<locked>> | 90% | 53,461 psi | 88% | 3117 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 53,896 psi | 88% | 3127 fps | 100% |
| Norma 203B | <<locked>> | 92% | 51,750 psi | 85% | 3140 fps | 99% |
| Norma URPᴾ | <<locked>> | 100% | 48,660 psi | 80% | 3123 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 92% | 52,025 psi | 85% | 3163 fps | 98.9% |
| Ramshot TAC | <<locked>> | 88% | 54,665 psi | 90% | 3136 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,882 psi | 88% | 3159 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,808 psi | 85% | 3068 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,070 psi | 58% | 1991 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 53,476 psi | 88% | 3110 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,157 psi | 89% | 3133 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 52,388 psi | 86% | 3222 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,257 psi | 86% | 3258 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,747 psi | 80% | 3150 fps | 97.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,763 psi | 82% | 3173 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 88% | 54,534 psi | 90% | 3107 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 53,998 psi | 89% | 3117 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 96% | 51,866 psi | 85% | 3133 fps | 99.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,998 psi | 89% | 3130 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,041 psi | 89% | 3150 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,795 psi | 90% | 3150 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,345 psi | 88% | 3074 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 53,795 psi | 88% | 3199 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 52,866 psi | 87% | 3064 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,591 psi | 86% | 3104 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,200 psi | 87% | 3136 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,098 psi | 86% | 3012 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,880 psi | 85% | 3005 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 51,735 psi | 85% | 3104 fps | 99.7% |
| Somchem S335 | <<locked>> | 90% | 54,578 psi | 90% | 3061 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,156 psi | 86% | 3100 fps | 98.9% |
| Somchem S355 | <<locked>> | 96% | 52,504 psi | 86% | 3136 fps | 99.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,381 psi | 71% | 3064 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 84% | 51,982 psi | 85% | 2989 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,141 psi | 86% | 3002 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 53,026 psi | 87% | 3087 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,549 psi | 90% | 3104 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,128 psi | 89% | 3117 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,358 psi | 84% | 3127 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 88% | 54,505 psi | 89% | 3127 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 92% | 52,663 psi | 86% | 3094 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,357 psi | 83% | 3130 fps | 97.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,504 psi | 86% | 3110 fps | 99.5% |
| Winchester 748 | <<locked>> | 88% | 53,911 psi | 89% | 3176 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 90% | 52,968 psi | 87% | 3146 fps | 99.4% |
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% | 43,323 psi | 71% | 2881 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,369 psi | 78% | 2992 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 35,969 psi | 59% | 2776 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,482 psi | 70% | 2933 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 33,953 psi | 56% | 2756 fps | 98.7% |
| Accurate 4350 | <<locked>> | 94% | 39,595 psi | 65% | 2940 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 51,619 psi | 85% | 2972 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,784 psi | 65% | 2877 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 38,479 psi | 63% | 2825 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,829 psi | 69% | 2897 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 41,234 psi | 68% | 2907 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,530 psi | 80% | 3117 fps | 98.9% |
| Alliant Power Pro 2000-MR | 85.5 gr | 84% | 41,249 psi | 68% | 3012 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,112 psi | 54% | 2730 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,907 psi | 80% | 2992 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 38,203 psi | 63% | 2858 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,074 psi | 66% | 2956 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 86% | 35,027 psi | 57% | 2854 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,966 psi | 84% | 2966 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,597 psi | 68% | 2930 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 32,532 psi | 53% | 2726 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,874 psi | 72% | 2897 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,248 psi | 66% | 2910 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,121 psi | 72% | 3054 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 80% | 47,863 psi | 79% | 3022 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,733 psi | 80% | 3041 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 43,859 psi | 72% | 2969 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 40,118 psi | 66% | 2890 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 36,622 psi | 60% | 2835 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,143 psi | 59% | 2844 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,875 psi | 42% | 1742 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,638 psi | 63% | 2841 fps | 96.7% |
| IMR 3031 | <<locked>> | 80% | 39,262 psi | 64% | 2904 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 37,956 psi | 62% | 2808 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 49,400 psi | 81% | 2959 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 40,843 psi | 67% | 2946 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 36,521 psi | 60% | 2831 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 41,829 psi | 69% | 2897 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 47,152 psi | 77% | 2992 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 38,464 psi | 63% | 2858 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 40,466 psi | 66% | 2825 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 35,360 psi | 58% | 2759 fps | 96.6% |
| Lovex S065 | <<locked>> | 96% | 47,601 psi | 78% | 3015 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 39,102 psi | 64% | 2835 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 39,189 psi | 64% | 2851 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 37,579 psi | 62% | 2848 fps | 95.8% |
| Norma URP | <<locked>> | 94% | 40,118 psi | 66% | 2943 fps | 95% |
| Ramshot Big Game | <<locked>> | 82% | 37,072 psi | 61% | 2851 fps | 95.3% |
| Ramshot TAC | <<locked>> | 82% | 44,802 psi | 74% | 2949 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,075 psi | 67% | 2910 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,411 psi | 75% | 2949 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,107 psi | 43% | 1785 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,978 psi | 77% | 2999 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 50,894 psi | 84% | 3074 fps | 95.6% |
| ReloadSwiss RS 52 | 80.9 gr | 82% | 39,552 psi | 65% | 2959 fps | 95.7% |
| ReloadSwiss RS 60 | 80.2 gr | 80% | 30,589 psi | 50% | 2733 fps | 95.7% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,467 psi | 70% | 3022 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,499 psi | 76% | 3107 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,844 psi | 70% | 2897 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 37,159 psi | 61% | 2779 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 34,940 psi | 57% | 2782 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 47,601 psi | 78% | 3015 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,464 psi | 63% | 2858 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 35,360 psi | 58% | 2759 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,734 psi | 82% | 3015 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 36,216 psi | 59% | 2835 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,676 psi | 82% | 3015 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,830 psi | 70% | 2917 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,377 psi | 63% | 2838 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,640 psi | 67% | 2802 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,475 psi | 55% | 2651 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 45,179 psi | 74% | 2986 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 40,248 psi | 66% | 2805 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 39,668 psi | 65% | 2858 fps | 96.3% |
| Somchem S355 | <<locked>> | 82% | 33,765 psi | 55% | 2736 fps | 95% |
| Somchem S365 | <<locked>> | 90% | 31,343 psi | 51% | 2756 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 46,006 psi | 76% | 2890 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,785 psi | 67% | 2808 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,158 psi | 59% | 2779 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,014 psi | 61% | 2779 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 29,994 psi | 49% | 2612 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 94% | 42,076 psi | 69% | 2946 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 41,916 psi | 69% | 2894 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 35,694 psi | 59% | 2762 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 94% | 41,365 psi | 68% | 2949 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,128 psi | 58% | 2749 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 40,973 psi | 67% | 2936 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,652 psi | 62% | 2841 fps | 96.5% |
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 106 powders for .375 Blaser Mag. loaded with the .375 | 200gr | Sierra Pro-Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,284 fps; across all powders the maximum-charge window runs from 1,949 fps to 3,284 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, ReloadSwiss RS 52 rank at the top here: for .375 Blaser Mag. with the .375 | 200gr | Sierra Pro-Hunter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.