Load Specifications
Load data in caliber .375 Blaser Mag. with .375 | 200gr | MAKER TREX bullet and 85 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 CFE223.
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>> | 90% | 53,577 psi | 88% | 3035 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 54,027 psi | 89% | 3133 fps | 98.2% |
| Accurate 2230 | <<locked>> | 82% | 54,955 psi | 90% | 3143 fps | 98.6% |
| Accurate 2460 | <<locked>> | 86% | 51,953 psi | 85% | 3051 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,621 psi | 88% | 3091 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,592 psi | 88% | 3117 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 53,490 psi | 88% | 3127 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 54,041 psi | 89% | 2986 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 54,476 psi | 89% | 3012 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,721 psi | 87% | 3117 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 98% | 53,911 psi | 89% | 3107 fps | 98.3% |
| ADI AR 2219 | <<locked>> | 84% | 54,404 psi | 89% | 3110 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 52,301 psi | 86% | 3074 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 92% | 55,042 psi | 90% | 3120 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 53,359 psi | 88% | 3186 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 52,272 psi | 86% | 3219 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 52,707 psi | 87% | 3127 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,534 psi | 88% | 3048 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 53,780 psi | 88% | 3153 fps | 98.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 50,183 psi | 82% | 3182 fps | 98.8% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 53,200 psi | 87% | 2979 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 52,576 psi | 86% | 3123 fps | 97.8% |
| Bofors RP3 | <<locked>> | 98% | 52,982 psi | 87% | 3143 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,708 psi | 90% | 3068 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 92% | 54,505 psi | 89% | 3159 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 88% | 52,460 psi | 86% | 3196 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 86% | 52,997 psi | 87% | 3091 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 54,186 psi | 89% | 3114 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 54,853 psi | 90% | 3150 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 92% | 53,171 psi | 87% | 3130 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,349 psi | 65% | 2877 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 51,779 psi | 85% | 3156 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,026 psi | 56% | 1903 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,853 psi | 90% | 3136 fps | 99.2% |
| IMR 3031 | <<locked>> | 92% | 52,156 psi | 86% | 3127 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 53,287 psi | 87% | 3091 fps | 98.4% |
| IMR 4198 | <<locked>> | 86% | 54,331 psi | 89% | 3015 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 51,576 psi | 85% | 3130 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 90% | 52,301 psi | 86% | 3074 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 86% | 52,054 psi | 85% | 3061 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 92% | 51,401 psi | 84% | 3091 fps | 99.9% |
| Lovex S060 | <<locked>> | 92% | 53,316 psi | 88% | 3048 fps | 98.7% |
| Lovex S062 | <<locked>> | 96% | 52,475 psi | 86% | 3091 fps | 99.5% |
| Norma 200 | <<locked>> | 82% | 53,185 psi | 87% | 3018 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,737 psi | 90% | 3117 fps | 99.6% |
| Norma 202 | <<locked>> | 92% | 51,793 psi | 85% | 3074 fps | 100% |
| Norma 203B | <<locked>> | 96% | 52,881 psi | 87% | 3140 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 96% | 53,388 psi | 88% | 3163 fps | 98.7% |
| Ramshot TAC | <<locked>> | 90% | 52,997 psi | 87% | 3077 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 51,837 psi | 85% | 3100 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,838 psi | 88% | 3077 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,243 psi | 56% | 1949 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 51,953 psi | 85% | 3064 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 53,403 psi | 88% | 3219 fps | 98.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 53,708 psi | 88% | 3258 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 52,257 psi | 86% | 3054 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 54,984 psi | 90% | 3107 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,634 psi | 86% | 3127 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 51,401 psi | 84% | 3091 fps | 99.9% |
| Shooters World Precision | <<locked>> | 96% | 52,475 psi | 86% | 3091 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 51,924 psi | 85% | 3028 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,592 psi | 90% | 2736 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,868 psi | 90% | 3120 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 54,969 psi | 90% | 3196 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,708 psi | 90% | 3074 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 54,389 psi | 89% | 3107 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,752 psi | 90% | 3140 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,838 psi | 88% | 3018 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 53,359 psi | 88% | 3009 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 53,374 psi | 88% | 3110 fps | 99.6% |
| Somchem S335 | <<locked>> | 92% | 52,808 psi | 87% | 3015 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,795 psi | 88% | 3104 fps | 98.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 53,403 psi | 88% | 3130 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,334 psi | 63% | 2930 fps | 97.5% |
| Vihtavuori N130 | <<locked>> | 88% | 53,722 psi | 88% | 2995 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,722 psi | 88% | 3009 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 54,041 psi | 89% | 3087 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 52,373 psi | 86% | 3051 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,779 psi | 85% | 3061 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,614 psi | 75% | 2999 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 90% | 52,721 psi | 87% | 3074 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 96% | 54,027 psi | 89% | 3097 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,297 psi | 78% | 2992 fps | 98.3% |
| Winchester 748 | <<locked>> | 90% | 51,793 psi | 85% | 3123 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 94% | 54,389 psi | 89% | 3150 fps | 99.3% |
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% | 38,812 psi | 64% | 2779 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,473 psi | 83% | 3068 fps | 97.5% |
| Accurate 2230 | <<locked>> | 80% | 51,068 psi | 84% | 3077 fps | 98% |
| Accurate 2460 | <<locked>> | 80% | 42,322 psi | 69% | 2881 fps | 99.4% |
| Accurate 2495 | <<locked>> | 80% | 30,966 psi | 51% | 2654 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 37,594 psi | 62% | 2818 fps | 98.4% |
| Accurate 4064 | <<locked>> | 80% | 29,341 psi | 48% | 2625 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 80% | 47,732 psi | 78% | 2884 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,109 psi | 79% | 2907 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 38,261 psi | 63% | 2825 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 90% | 41,901 psi | 69% | 2884 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 47,282 psi | 78% | 2995 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,811 psi | 62% | 2789 fps | 96.7% |
| Alliant AR-Comp | <<locked>> | 80% | 36,376 psi | 60% | 2808 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,555 psi | 72% | 2999 fps | 97.6% |
| Alliant Power Pro 2000-MR | 83 gr | 88% | 42,569 psi | 70% | 3015 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 35,737 psi | 59% | 2785 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,324 psi | 73% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,437 psi | 68% | 2917 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 38,116 psi | 63% | 2917 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,688 psi | 77% | 2874 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 42,743 psi | 70% | 2936 fps | 95.5% |
| Bofors RP3 | <<locked>> | 86% | 34,983 psi | 57% | 2782 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,929 psi | 66% | 2792 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,650 psi | 59% | 2789 fps | 96.7% |
| Hodgdon CFE223 | 77.2 gr | 80% | 39,392 psi | 65% | 2927 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 43,134 psi | 71% | 2920 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 43,961 psi | 72% | 2936 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 44,744 psi | 73% | 2969 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 35,969 psi | 59% | 2776 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 36,898 psi | 61% | 2822 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 34,374 psi | 56% | 2785 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,208 psi | 41% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 37,275 psi | 61% | 2789 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 34,621 psi | 57% | 2789 fps | 99.5% |
| IMR 4064 | <<locked>> | 86% | 38,740 psi | 64% | 2808 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 45,310 psi | 74% | 2871 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 37,173 psi | 61% | 2835 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 37,811 psi | 62% | 2789 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 80% | 42,090 psi | 69% | 2877 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 80% | 33,794 psi | 55% | 2736 fps | 97.3% |
| Lovex S060 | <<locked>> | 82% | 39,175 psi | 64% | 2772 fps | 95.7% |
| Lovex S062 | <<locked>> | 82% | 33,489 psi | 55% | 2697 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 49,966 psi | 82% | 2969 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,940 psi | 57% | 2720 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 35,056 psi | 58% | 2743 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 38,014 psi | 62% | 2841 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 86% | 37,869 psi | 62% | 2854 fps | 95% |
| Ramshot TAC | <<locked>> | 88% | 49,545 psi | 81% | 3018 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 39,450 psi | 65% | 2858 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,191 psi | 68% | 2838 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,237 psi | 41% | 1742 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,583 psi | 70% | 2890 fps | 99% |
| ReloadSwiss RS 52 | 78.6 gr | 86% | 40,277 psi | 66% | 2963 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 31,140 psi | 51% | 2733 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 38,406 psi | 63% | 2789 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 33,185 psi | 54% | 2664 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 88% | 35,041 psi | 58% | 2772 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,794 psi | 55% | 2736 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 33,489 psi | 55% | 2697 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,107 psi | 74% | 2907 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,706 psi | 85% | 2697 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,805 psi | 78% | 3002 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 39,407 psi | 65% | 2897 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,208 psi | 74% | 2920 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 47,239 psi | 78% | 2986 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 39,421 psi | 65% | 2848 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,840 psi | 60% | 2703 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,008 psi | 49% | 2546 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 40,466 psi | 66% | 2871 fps | 97.8% |
| Somchem S335 | <<locked>> | 80% | 36,245 psi | 60% | 2703 fps | 99.1% |
| Somchem S341 | <<locked>> | 82% | 37,913 psi | 62% | 2799 fps | 95.2% |
| Somchem S355 | <<locked>> | 88% | 36,230 psi | 59% | 2785 fps | 95.4% |
| Somchem S365 | <<locked>> | 96% | 33,504 psi | 55% | 2802 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 41,930 psi | 69% | 2799 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,927 psi | 61% | 2713 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 31,952 psi | 52% | 2671 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 33,112 psi | 54% | 2674 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 32,314 psi | 53% | 2664 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 98% | 42,757 psi | 70% | 2940 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 37,681 psi | 62% | 2782 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 80% | 31,807 psi | 52% | 2651 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 38,580 psi | 63% | 2808 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 36,419 psi | 60% | 2815 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 82% | 35,868 psi | 59% | 2782 fps | 95.3% |
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 85 powders for .375 Blaser Mag. loaded with the .375 | 200gr | MAKER TREX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,258 fps; across all powders the maximum-charge window runs from 1,903 fps to 3,258 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 85 of the 85 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. The 200.0 gr projectile in 0.375" calls for a 1:6.0 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 CFE223 rank at the top here: for .375 Blaser Mag. with the .375 | 200gr | MAKER TREX 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.