Load Specifications
Load data in caliber .375 Chey Tac with .375 | 200gr | Winchester SPFN Powerpoint bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 54,491 psi | 85% | 3294 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,274 psi | 87% | 3343 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,203 psi | 90% | 3458 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 82% | 56,057 psi | 88% | 3310 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,405 psi | 88% | 3399 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 54,375 psi | 85% | 3399 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,863 psi | 77% | 3271 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,729 psi | 69% | 3228 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,479 psi | 90% | 3333 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,072 psi | 88% | 3406 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 57,595 psi | 90% | 3422 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,941 psi | 88% | 3386 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,360 psi | 85% | 3392 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,506 psi | 87% | 3366 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,071 psi | 86% | 3425 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,275 psi | 88% | 3461 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,507 psi | 89% | 3343 fps | 96.4% |
| Bofors RP15 | <<locked>> | 98% | 57,058 psi | 89% | 3435 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,126 psi | 80% | 3356 fps | 98.6% |
| Bofors RP5 | <<locked>> | 94% | 54,360 psi | 85% | 3392 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 57,667 psi | 90% | 3346 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,070 psi | 85% | 3369 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 86% | 57,014 psi | 89% | 3399 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 55,898 psi | 88% | 3353 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 54,186 psi | 85% | 3327 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,971 psi | 89% | 3373 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,391 psi | 88% | 3314 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,998 psi | 85% | 3501 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 53,969 psi | 85% | 3369 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,753 psi | 58% | 2198 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,840 psi | 88% | 3323 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,477 psi | 87% | 3314 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 55,767 psi | 87% | 3333 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,303 psi | 87% | 3317 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 96% | 55,941 psi | 88% | 3435 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 56,202 psi | 88% | 3310 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,346 psi | 85% | 3304 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,521 psi | 87% | 3307 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,116 psi | 90% | 3386 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 39,160 psi | 61% | 3143 fps | 97.7% |
| Norma MRP | <<locked>> | 92% | 54,230 psi | 85% | 3419 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 57,377 psi | 90% | 3383 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,840 psi | 89% | 3451 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 88% | 56,565 psi | 89% | 3386 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,651 psi | 87% | 3376 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,565 psi | 59% | 2247 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,826 psi | 89% | 3409 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,564 psi | 87% | 3363 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,809 psi | 84% | 3392 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,347 psi | 87% | 3494 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,285 psi | 79% | 3360 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 55,201 psi | 87% | 3294 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,551 psi | 90% | 3363 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 55,376 psi | 87% | 3373 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 57,667 psi | 90% | 3346 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,202 psi | 88% | 3310 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,346 psi | 85% | 3304 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,956 psi | 89% | 3356 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,984 psi | 86% | 3153 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,622 psi | 87% | 3255 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,940 psi | 86% | 3366 fps | 99.3% |
| Somchem S355 | <<locked>> | 82% | 54,882 psi | 86% | 3287 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,840 psi | 88% | 3284 fps | 98.1% |
| Somchem S365 | <<locked>> | 88% | 54,085 psi | 85% | 3323 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,985 psi | 88% | 3337 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 56,333 psi | 88% | 3251 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,535 psi | 87% | 3314 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,709 psi | 87% | 3310 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 54,868 psi | 86% | 3320 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,595 psi | 90% | 3396 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,998 psi | 85% | 3409 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 98% | 54,143 psi | 85% | 3379 fps | 98.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,140 psi | 80% | 3369 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,506 psi | 87% | 3258 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,290 psi | 90% | 3406 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,638 psi | 90% | 3510 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,173 psi | 88% | 3330 fps | 99.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 33,272 psi | 52% | 2864 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 44,686 psi | 70% | 3159 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 45,803 psi | 72% | 3248 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 52,620 psi | 82% | 3255 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,333 psi | 59% | 3009 fps | 95% |
| ADI AR 2213 | <<locked>> | 86% | 41,089 psi | 64% | 3123 fps | 95% |
| ADI AR 2217 | <<locked>> | 96% | 42,583 psi | 67% | 3136 fps | 96% |
| ADI AR 2225 | <<locked>> | 92% | 33,388 psi | 52% | 2953 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,867 psi | 84% | 3278 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,685 psi | 67% | 3173 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,719 psi | 78% | 3301 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,289 psi | 58% | 3005 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,218 psi | 60% | 3068 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,865 psi | 50% | 2900 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,820 psi | 47% | 2851 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,070 psi | 55% | 3048 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,084 psi | 83% | 3281 fps | 95.5% |
| Bofors RP15 | <<locked>> | 86% | 37,913 psi | 59% | 3054 fps | 95.5% |
| Bofors RP30 | <<locked>> | 92% | 38,435 psi | 60% | 3087 fps | 95.1% |
| Bofors RP5 | <<locked>> | 84% | 38,218 psi | 60% | 3068 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 47,529 psi | 74% | 3169 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 40,698 psi | 64% | 3097 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 46,398 psi | 73% | 3212 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 49,008 psi | 77% | 3232 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 43,932 psi | 69% | 3133 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,091 psi | 68% | 3114 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,234 psi | 63% | 3038 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,621 psi | 56% | 3071 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 46,282 psi | 73% | 3232 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,514 psi | 43% | 1978 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,033 psi | 67% | 3087 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,849 psi | 77% | 3196 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 42,496 psi | 67% | 3100 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,569 psi | 67% | 3068 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 42,177 psi | 66% | 3163 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 46,427 psi | 73% | 3143 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 44,715 psi | 70% | 3127 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 30,458 psi | 48% | 2785 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 43,091 psi | 68% | 3123 fps | 96.8% |
| Norma 217 | <<locked>> | 96% | 34,069 psi | 53% | 3005 fps | 95.6% |
| Norma MRP | 120.9 gr | 80% | 34,766 psi | 54% | 3005 fps | 96% |
| Norma URP | <<locked>> | 80% | 43,816 psi | 69% | 3150 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 42,061 psi | 66% | 3166 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 42,873 psi | 67% | 3136 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 34,998 psi | 55% | 2956 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,036 psi | 44% | 2024 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,765 psi | 83% | 3350 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,759 psi | 70% | 3176 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,105 psi | 68% | 3196 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,750 psi | 51% | 2969 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,931 psi | 67% | 3209 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 51,634 psi | 81% | 3238 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,321 psi | 65% | 3051 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 36,492 psi | 57% | 2986 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 47,529 psi | 74% | 3169 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,427 psi | 73% | 3143 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 44,715 psi | 70% | 3127 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,185 psi | 83% | 3297 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,648 psi | 81% | 3107 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,600 psi | 71% | 3077 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 38,856 psi | 61% | 3045 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 51,474 psi | 81% | 3235 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,426 psi | 71% | 3094 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 40,785 psi | 64% | 3100 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,260 psi | 58% | 2969 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 80% | 49,269 psi | 77% | 3146 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,266 psi | 71% | 3140 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 36,956 psi | 58% | 2946 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 80% | 44,817 psi | 70% | 3143 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 35,665 psi | 56% | 2989 fps | 99.1% |
| Vihtavuori N560 | 130 gr | 86% | 43,511 psi | 68% | 3202 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 90% | 40,756 psi | 64% | 3110 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 47,413 psi | 74% | 3294 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,686 psi | 70% | 3091 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,630 psi | 73% | 3219 fps | 99% |
| Winchester StaBALL HD | 119.7 gr | 80% | 28,427 psi | 45% | 2907 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,521 psi | 57% | 2943 fps | 95% |
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 82 powders for .375 Chey Tac loaded with the .375 | 200gr | Winchester SPFN Powerpoint. Winchester StaBALL HD delivers the highest muzzle velocity at 3,510 fps; across all powders the maximum-charge window runs from 2,198 fps to 3,510 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for .375 Chey Tac with the .375 | 200gr | Winchester SPFN Powerpoint they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.