Load Specifications
Bullet Manufacturer:Frontier Bullets
Bullet Weight:225 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:37 XC load data
Case Length (l3):3.087"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:139.8 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:30"
Max. allowed Pressure:69,618 psi
Recommended Twist Rate:1:6.0
Load data in caliber 37 XC with .375 | 225gr | Frontier PH HPBT bullet and 124 powders. The key underlying parameters are shown in the table above.
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: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 60,307 psi | 87% | 3107 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 60,582 psi | 87% | 3143 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 61,902 psi | 89% | 3219 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 62,352 psi | 90% | 3232 fps | 99.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,127 psi | 75% | 3156 fps | 99.7% |
| Accurate 4064 | <<locked>> | 88% | 60,872 psi | 87% | 3205 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 62,279 psi | 89% | 3330 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 57,101 psi | 82% | 3379 fps | 98.3% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 54,331 psi | 78% | 3310 fps | 96.6% |
| ADI APS 450 | <<locked>> | 84% | 62,366 psi | 90% | 2520 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 59,770 psi | 86% | 3248 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 60,858 psi | 87% | 3245 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 59,277 psi | 85% | 3323 fps | 99.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,098 psi | 76% | 3251 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 62,062 psi | 89% | 3235 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 60,263 psi | 87% | 3140 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 60,858 psi | 87% | 3392 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 59,234 psi | 85% | 3317 fps | 99.1% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 59,234 psi | 85% | 3317 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 61,815 psi | 89% | 3268 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 62,207 psi | 89% | 3301 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 62,410 psi | 90% | 3386 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 60,597 psi | 87% | 3363 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 58,349 psi | 84% | 3307 fps | 99% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,808 psi | 74% | 3251 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,849 psi | 70% | 3179 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,714 psi | 61% | 3100 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,449 psi | 81% | 3389 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 59,988 psi | 86% | 3264 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,413 psi | 68% | 3166 fps | 97.4% |
| Bofors RP3 | <<locked>> | 88% | 59,205 psi | 85% | 3235 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,808 psi | 74% | 3251 fps | 98.4% |
| Bofors RP7 | <<locked>> | 94% | 62,221 psi | 89% | 3278 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 59,364 psi | 85% | 3153 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 62,685 psi | 90% | 3271 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 59,727 psi | 86% | 3258 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 60,437 psi | 87% | 3333 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 92% | 60,002 psi | 86% | 3284 fps | 99.3% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,043 psi | 82% | 3255 fps | 97.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,738 psi | 80% | 3232 fps | 97% |
| Hodgdon H4895 | <<locked>> | 84% | 60,437 psi | 87% | 3255 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 62,888 psi | 90% | 3287 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 61,076 psi | 88% | 3294 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 41,727 psi | 60% | 3123 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 94% | 61,525 psi | 88% | 3379 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,158 psi | 52% | 1998 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 61,496 psi | 88% | 3251 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 61,105 psi | 88% | 3222 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 60,365 psi | 87% | 3228 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 59,596 psi | 86% | 3215 fps | 99.7% |
| IMR 4350 | <<locked>> | 96% | 59,451 psi | 85% | 3251 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 60,133 psi | 86% | 3248 fps | 99.8% |
| IMR 4831 | <<locked>> | 98% | 62,381 psi | 90% | 3310 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 59,915 psi | 86% | 3274 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 58,610 psi | 84% | 3241 fps | 97.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,517 psi | 73% | 3219 fps | 96.7% |
| IMR 8208 XBR | <<locked>> | 84% | 62,062 psi | 89% | 3235 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 60,452 psi | 87% | 3209 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 62,004 psi | 89% | 3209 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 60,481 psi | 87% | 3215 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 60,089 psi | 86% | 3241 fps | 100% |
| Lovex S070 | <<locked>> | 96% | 61,699 psi | 89% | 3287 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,149 psi | 62% | 2995 fps | 98.6% |
| Norma 201 | <<locked>> | 86% | 62,033 psi | 89% | 3232 fps | 100% |
| Norma 202 | <<locked>> | 86% | 62,758 psi | 90% | 3222 fps | 100% |
| Norma 203B | <<locked>> | 88% | 61,409 psi | 88% | 3281 fps | 100% |
| Norma 204 | <<locked>> | 96% | 60,756 psi | 87% | 3317 fps | 99.1% |
| Norma MRPᴾ | <<locked>> | 100% | 55,143 psi | 79% | 3343 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 60,423 psi | 87% | 3314 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 62,830 psi | 90% | 3310 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,763 psi | 73% | 3228 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 96% | 59,306 psi | 85% | 3317 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,339 psi | 65% | 3094 fps | 97.7% |
| Ramshot TAC | <<locked>> | 84% | 62,511 psi | 90% | 3274 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 84% | 62,758 psi | 90% | 3284 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 62,758 psi | 90% | 3235 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,840 psi | 53% | 2047 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 59,509 psi | 85% | 3238 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 59,567 psi | 86% | 3320 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 59,872 psi | 86% | 3353 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 62,250 psi | 89% | 3356 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 60,814 psi | 87% | 3392 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,785 psi | 60% | 3120 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 84% | 62,526 psi | 90% | 3199 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 62,598 psi | 90% | 3228 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 59,074 psi | 85% | 3228 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 61,061 psi | 88% | 3287 fps | 98.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,508 psi | 83% | 3291 fps | 99% |
| Rottweil R 907 | <<locked>> | 94% | 62,221 psi | 89% | 3278 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 60,089 psi | 86% | 3241 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 84% | 60,452 psi | 87% | 3209 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 60,481 psi | 87% | 3215 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 61,699 psi | 89% | 3287 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 61,105 psi | 88% | 3297 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 61,583 psi | 88% | 3251 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 62,076 psi | 89% | 3264 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 62,903 psi | 90% | 3146 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 60,060 psi | 86% | 3091 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 60,234 psi | 87% | 3189 fps | 99.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,000 psi | 82% | 3284 fps | 99% |
| Somchem S335 | <<locked>> | 86% | 62,395 psi | 90% | 3136 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 61,090 psi | 88% | 3228 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 62,801 psi | 90% | 3274 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 59,335 psi | 85% | 3215 fps | 97.5% |
| Somchem S365 | <<locked>> | 98% | 59,756 psi | 86% | 3307 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 58,233 psi | 84% | 3261 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 82% | 62,076 psi | 89% | 3091 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 59,538 psi | 86% | 3071 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 59,277 psi | 85% | 3127 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 59,741 psi | 86% | 3146 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 60,539 psi | 87% | 3189 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 62,932 psi | 90% | 3301 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,343 psi | 72% | 3114 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 84% | 62,816 psi | 90% | 3235 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 61,743 psi | 89% | 3196 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 61,975 psi | 89% | 3310 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,607 psi | 78% | 3261 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,535 psi | 80% | 3327 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 58,929 psi | 85% | 3205 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 59,727 psi | 86% | 3235 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 60,640 psi | 87% | 3337 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,135 psi | 63% | 3241 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 62,439 psi | 90% | 3274 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,766 psi | 79% | 3196 fps | 98.5% |
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 56,521 psi | 81% | 3058 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 49,734 psi | 71% | 2995 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 57,870 psi | 83% | 3166 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,877 psi | 69% | 2999 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 32,140 psi | 46% | 2743 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 47,079 psi | 68% | 3002 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,723 psi | 51% | 2861 fps | 98.3% |
| Accurate High Country | <<locked>> | 92% | 42,946 psi | 62% | 3114 fps | 95.2% |
| Accurate MAGPRO | <<locked>> | 98% | 50,459 psi | 72% | 3241 fps | 95.7% |
| ADI APS 450 | <<locked>> | 80% | 58,320 psi | 84% | 2461 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 52,678 psi | 76% | 3136 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,599 psi | 64% | 2979 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 42,583 psi | 61% | 3015 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 46,456 psi | 67% | 3123 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,723 psi | 79% | 3130 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 56,333 psi | 81% | 3091 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,168 psi | 71% | 3209 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 39,987 psi | 57% | 2959 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 39,987 psi | 57% | 2959 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,078 psi | 65% | 3005 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,182 psi | 69% | 3081 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,911 psi | 50% | 2871 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,610 psi | 57% | 3009 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 39,537 psi | 57% | 2949 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 39,595 psi | 57% | 2999 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,541 psi | 37% | 2602 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,009 psi | 45% | 2785 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 82% | 29,153 psi | 42% | 2782 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,518 psi | 75% | 3150 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 41,698 psi | 60% | 3045 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 45,339 psi | 65% | 3018 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 39,595 psi | 57% | 2999 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 40,045 psi | 58% | 2877 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 55,970 psi | 80% | 3104 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,766 psi | 79% | 3163 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,788 psi | 66% | 3028 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 37,739 psi | 54% | 2910 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 40,727 psi | 59% | 2930 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 96% | 49,719 psi | 71% | 3127 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 48,733 psi | 70% | 3110 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 53,243 psi | 76% | 3146 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,416 psi | 47% | 2753 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,864 psi | 72% | 3127 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,117 psi | 56% | 3054 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 36,854 psi | 53% | 2913 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 39% | 1795 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,923 psi | 73% | 3094 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,563 psi | 77% | 3120 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,876 psi | 67% | 3012 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,371 psi | 71% | 3045 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 38,029 psi | 55% | 2851 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,437 psi | 60% | 2910 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 34,432 psi | 49% | 2808 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 49,429 psi | 71% | 3110 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,457 psi | 70% | 3068 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 98% | 47,282 psi | 68% | 3153 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 54,723 psi | 79% | 3130 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,910 psi | 76% | 3104 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,532 psi | 74% | 3051 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,108 psi | 68% | 3012 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,870 psi | 56% | 2854 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 37,188 psi | 53% | 2835 fps | 96.2% |
| Lovex S071 | <<locked>> | 90% | 31,111 psi | 45% | 2717 fps | 95% |
| Norma 201 | <<locked>> | 80% | 51,358 psi | 74% | 3074 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,098 psi | 75% | 3074 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,558 psi | 68% | 3064 fps | 100% |
| Norma 204 | <<locked>> | 84% | 40,205 psi | 58% | 2943 fps | 95% |
| Norma MRP | <<locked>> | 88% | 36,303 psi | 52% | 2953 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 35,636 psi | 51% | 2858 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,834 psi | 69% | 3084 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 43,918 psi | 63% | 3091 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 34,621 psi | 50% | 2838 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 96% | 39,117 psi | 56% | 2959 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 54,839 psi | 79% | 3159 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,955 psi | 79% | 3173 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 58,885 psi | 85% | 3182 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,499 psi | 40% | 1837 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,847 psi | 66% | 3009 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,982 psi | 75% | 3205 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,105 psi | 60% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,462 psi | 51% | 2877 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,693 psi | 50% | 2881 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,260 psi | 52% | 2969 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 55,434 psi | 80% | 3100 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 48,892 psi | 70% | 3025 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,656 psi | 61% | 2959 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 44,121 psi | 63% | 2992 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 41,089 psi | 59% | 2989 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 40,045 psi | 58% | 2877 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,870 psi | 56% | 2854 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,910 psi | 76% | 3104 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,108 psi | 68% | 3012 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,188 psi | 53% | 2835 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,758 psi | 63% | 3015 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,708 psi | 77% | 3136 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,155 psi | 73% | 3104 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,170 psi | 75% | 2999 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,005 psi | 63% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,189 psi | 55% | 2795 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,698 psi | 58% | 2982 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 51,967 psi | 75% | 2995 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,417 psi | 77% | 3120 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,931 psi | 62% | 2956 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 48,530 psi | 70% | 3035 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 32,097 psi | 46% | 2808 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 36,579 psi | 53% | 2851 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 58,407 psi | 84% | 3045 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 52,692 psi | 76% | 2979 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,965 psi | 70% | 2982 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,429 psi | 71% | 2999 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,075 psi | 59% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,043 psi | 53% | 2854 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 38,522 psi | 55% | 2881 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 55,143 psi | 79% | 3127 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,790 psi | 69% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,550 psi | 53% | 2858 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 27,905 psi | 40% | 2687 fps | 96.2% |
| Vihtavuori N560 | <<locked>> | 96% | 48,399 psi | 70% | 3199 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,390 psi | 52% | 2818 fps | 99.7% |
| Winchester 748 | <<locked>> | 80% | 55,869 psi | 80% | 3179 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 37,869 psi | 54% | 2910 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,134 psi | 35% | 2628 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,169 psi | 74% | 3110 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,336 psi | 59% | 2949 fps | 95.6% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 124 powders for 37 XC loaded with the .375 | 225gr | Frontier PH HPBT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,392 fps; across all powders the maximum-charge window runs from 1,998 fps to 3,392 fps. Accurate 3100 gives the best case fill at 100 %, and 124 of the 124 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (480 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Accurate MAGPRO 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.