Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:235 gr
Bullet Diameter:0.374"
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 .374 | 235gr | Rhino Penetrator bullet and 123 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-16.
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% | 61,540 psi | 88% | 3058 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 62,265 psi | 89% | 3097 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 59,741 psi | 86% | 3136 fps | 99.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,954 psi | 78% | 3127 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 62,424 psi | 90% | 3156 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 59,988 psi | 86% | 3238 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 59,161 psi | 85% | 3353 fps | 98.9% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,130 psi | 81% | 3284 fps | 97.4% |
| ADI APS 450 | <<locked>> | 84% | 62,511 psi | 90% | 2470 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 61,105 psi | 88% | 3202 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 62,366 psi | 90% | 3202 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 60,829 psi | 87% | 3287 fps | 99.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,650 psi | 79% | 3225 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 59,538 psi | 86% | 3136 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 61,873 psi | 89% | 3091 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 62,642 psi | 90% | 3350 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 60,988 psi | 88% | 3284 fps | 99.5% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 60,988 psi | 88% | 3284 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 59,611 psi | 86% | 3176 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 59,799 psi | 86% | 3202 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 60,292 psi | 87% | 3291 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 62,555 psi | 90% | 3320 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 60,075 psi | 86% | 3274 fps | 99.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,519 psi | 77% | 3219 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,546 psi | 73% | 3146 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,947 psi | 63% | 3071 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 58,697 psi | 84% | 3360 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 61,525 psi | 88% | 3222 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,008 psi | 70% | 3140 fps | 98.1% |
| Bofors RP3 | <<locked>> | 88% | 60,814 psi | 87% | 3192 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,519 psi | 77% | 3219 fps | 98.9% |
| Bofors RP7 | <<locked>> | 92% | 59,785 psi | 86% | 3182 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 60,684 psi | 87% | 3107 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 60,133 psi | 86% | 3173 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 43,816 psi | 63% | 2999 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 88% | 61,221 psi | 88% | 3219 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 62,192 psi | 89% | 3294 fps | 100% |
| Hodgdon H4350 | <<locked>> | 92% | 61,554 psi | 88% | 3248 fps | 99.6% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 58,798 psi | 84% | 3222 fps | 97.9% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,406 psi | 82% | 3202 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 84% | 61,801 psi | 89% | 3209 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 60,756 psi | 87% | 3196 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 62,671 psi | 90% | 3248 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,105 psi | 62% | 3110 fps | 97.6% |
| Hodgdon Superformance | <<locked>> | 92% | 59,059 psi | 85% | 3284 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,260 psi | 52% | 1959 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 59,146 psi | 85% | 3156 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 62,787 psi | 90% | 3176 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 61,699 psi | 89% | 3182 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 61,003 psi | 88% | 3176 fps | 99.9% |
| IMR 4350 | <<locked>> | 96% | 60,959 psi | 88% | 3215 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 61,496 psi | 88% | 3209 fps | 99.9% |
| IMR 4831 | <<locked>> | 96% | 60,147 psi | 86% | 3219 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 61,395 psi | 88% | 3232 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 60,017 psi | 86% | 3205 fps | 98.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,112 psi | 75% | 3192 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 82% | 59,538 psi | 86% | 3136 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 62,134 psi | 89% | 3163 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 59,582 psi | 86% | 3114 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 62,062 psi | 89% | 3173 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 61,554 psi | 88% | 3199 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 59,393 psi | 85% | 3196 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,628 psi | 64% | 2969 fps | 99.1% |
| Norma 201 | <<locked>> | 84% | 59,683 psi | 86% | 3133 fps | 100% |
| Norma 202 | <<locked>> | 84% | 60,408 psi | 87% | 3127 fps | 100% |
| Norma 203B | <<locked>> | 88% | 62,946 psi | 90% | 3238 fps | 100% |
| Norma 204 | <<locked>> | 96% | 62,526 psi | 90% | 3284 fps | 99.5% |
| Norma MRPᴾ | <<locked>> | 100% | 57,159 psi | 82% | 3314 fps | 99.9% |
| Norma URP | <<locked>> | 96% | 62,178 psi | 89% | 3271 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 60,234 psi | 87% | 3212 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,518 psi | 75% | 3209 fps | 98% |
| Ramshot Hunter | <<locked>> | 96% | 61,090 psi | 88% | 3281 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,818 psi | 67% | 3071 fps | 98.4% |
| Ramshot TAC | <<locked>> | 82% | 59,988 psi | 86% | 3176 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 60,234 psi | 87% | 3186 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,985 psi | 53% | 2005 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 61,148 psi | 88% | 3199 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 61,395 psi | 88% | 3281 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 61,772 psi | 89% | 3307 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 59,785 psi | 86% | 3258 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 62,787 psi | 90% | 3356 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,149 psi | 62% | 3104 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 82% | 60,234 psi | 87% | 3104 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 60,394 psi | 87% | 3133 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 60,843 psi | 87% | 3186 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 62,540 psi | 90% | 3248 fps | 98.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 59,350 psi | 85% | 3261 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 92% | 59,785 psi | 86% | 3182 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 61,554 psi | 88% | 3199 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 84% | 62,134 psi | 89% | 3163 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 62,062 psi | 89% | 3173 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 59,393 psi | 85% | 3196 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 62,729 psi | 90% | 3251 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 58,987 psi | 85% | 3153 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 59,669 psi | 86% | 3169 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 60,437 psi | 87% | 3051 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 61,525 psi | 88% | 3048 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 61,743 psi | 89% | 3153 fps | 99.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 58,842 psi | 85% | 3255 fps | 99.4% |
| Somchem S335 | <<locked>> | 84% | 60,017 psi | 86% | 3045 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 62,569 psi | 90% | 3186 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 60,553 psi | 87% | 3182 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 60,974 psi | 88% | 3182 fps | 98.1% |
| Somchem S365 | <<locked>> | 98% | 61,786 psi | 89% | 3264 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 60,046 psi | 86% | 3228 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 84% | 60,901 psi | 87% | 3025 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 60,858 psi | 87% | 3081 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 61,090 psi | 88% | 3097 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 62,091 psi | 89% | 3143 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 60,611 psi | 87% | 3205 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,924 psi | 75% | 3084 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 82% | 60,191 psi | 86% | 3133 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 59,393 psi | 85% | 3100 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 59,611 psi | 86% | 3215 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,507 psi | 81% | 3225 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,435 psi | 83% | 3301 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 45,556 psi | 65% | 3074 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 60,698 psi | 87% | 3163 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 61,250 psi | 88% | 3189 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 62,410 psi | 90% | 3301 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,716 psi | 66% | 3212 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 60,089 psi | 86% | 3179 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,565 psi | 81% | 3166 fps | 99% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 57,856 psi | 83% | 3012 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 51,169 psi | 74% | 2953 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,950 psi | 70% | 2963 fps | 98.4% |
| Accurate 3100 | <<locked>> | 84% | 31,009 psi | 45% | 2664 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 48,443 psi | 70% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,869 psi | 53% | 2831 fps | 98.8% |
| Accurate High Country | <<locked>> | 90% | 41,452 psi | 60% | 3025 fps | 95.2% |
| Accurate MAGPRO | <<locked>> | 96% | 48,559 psi | 70% | 3150 fps | 95.8% |
| ADI APS 450 | <<locked>> | 80% | 58,450 psi | 84% | 2408 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 53,824 psi | 77% | 3094 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,701 psi | 66% | 2943 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 38,435 psi | 55% | 2867 fps | 95% |
| ADI AR 2213 | <<locked>> | 94% | 44,715 psi | 64% | 3031 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 55,898 psi | 80% | 3084 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 57,870 psi | 83% | 3045 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,560 psi | 73% | 3169 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 38,493 psi | 55% | 2871 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 38,493 psi | 55% | 2871 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,195 psi | 66% | 2966 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,371 psi | 71% | 3038 fps | 100% |
| Alliant Reloder-16 | 89.3 gr | 80% | 35,940 psi | 52% | 2841 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,799 psi | 59% | 2976 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 38,087 psi | 55% | 2861 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 90% | 38,218 psi | 55% | 2917 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,353 psi | 38% | 2585 fps | 97.1% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,052 psi | 43% | 2710 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 28,108 psi | 40% | 2697 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,809 psi | 77% | 3110 fps | 100% |
| Bofors RP15 | <<locked>> | 92% | 37,710 psi | 54% | 2900 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,572 psi | 67% | 2979 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 38,218 psi | 55% | 2917 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 40,988 psi | 59% | 2844 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 57,029 psi | 82% | 3058 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 56,086 psi | 81% | 3120 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 40,973 psi | 59% | 2933 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 46,934 psi | 67% | 2992 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 38,856 psi | 56% | 2881 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 41,756 psi | 60% | 2900 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 94% | 47,906 psi | 69% | 3041 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 46,934 psi | 67% | 3022 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 54,418 psi | 78% | 3104 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,460 psi | 48% | 2726 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,169 psi | 74% | 3087 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 37,855 psi | 54% | 2976 fps | 95.6% |
| Hodgdon Superformance | 101.7 gr | 80% | 37,913 psi | 54% | 2887 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,093 psi | 39% | 1755 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,054 psi | 75% | 3051 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 55,042 psi | 79% | 3074 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,066 psi | 69% | 2976 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,386 psi | 72% | 3005 fps | 99.1% |
| IMR 4350 | <<locked>> | 80% | 36,651 psi | 53% | 2766 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,366 psi | 61% | 2877 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 35,462 psi | 51% | 2782 fps | 98.6% |
| IMR 4895 | <<locked>> | 80% | 50,662 psi | 73% | 3071 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,659 psi | 67% | 2979 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 94% | 42,627 psi | 61% | 3002 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 55,898 psi | 80% | 3084 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 54,259 psi | 78% | 3061 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,692 psi | 76% | 3012 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,312 psi | 69% | 2969 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,900 psi | 57% | 2825 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 38,145 psi | 55% | 2805 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 30,211 psi | 43% | 2641 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 52,634 psi | 76% | 3031 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,258 psi | 77% | 3028 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,747 psi | 70% | 3025 fps | 100% |
| Norma 204 | <<locked>> | 82% | 38,653 psi | 56% | 2854 fps | 95% |
| Norma MRP | <<locked>> | 86% | 34,969 psi | 50% | 2864 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 36,695 psi | 53% | 2828 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 80% | 49,124 psi | 71% | 3048 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 42,250 psi | 61% | 3005 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 35,607 psi | 51% | 2812 fps | 97% |
| Ramshot Magnum | <<locked>> | 94% | 37,666 psi | 54% | 2877 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 56,101 psi | 81% | 3120 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 80% | 56,260 psi | 81% | 3130 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,586 psi | 40% | 1798 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,963 psi | 67% | 2972 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,403 psi | 77% | 3163 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,337 psi | 62% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,622 psi | 53% | 2848 fps | 98.6% |
| ReloadSwiss RS 70 | 97.7 gr | 80% | 35,679 psi | 51% | 2858 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 34,925 psi | 50% | 2887 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 56,710 psi | 81% | 3054 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 50,096 psi | 72% | 2982 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,816 psi | 63% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 42,540 psi | 61% | 2907 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 37,115 psi | 53% | 2844 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 40,988 psi | 59% | 2844 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,900 psi | 57% | 2825 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,259 psi | 78% | 3061 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,312 psi | 69% | 2969 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,145 psi | 55% | 2805 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,918 psi | 65% | 2979 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 55,013 psi | 79% | 3097 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,359 psi | 75% | 3061 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,330 psi | 77% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,078 psi | 65% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,088 psi | 56% | 2762 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,218 psi | 56% | 2897 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 53,142 psi | 76% | 2953 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 54,723 psi | 79% | 3077 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,121 psi | 63% | 2923 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 46,572 psi | 67% | 2949 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 33,141 psi | 48% | 2782 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 35,346 psi | 51% | 2769 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 53,882 psi | 77% | 2933 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,270 psi | 72% | 2940 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,575 psi | 73% | 2956 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,134 psi | 61% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,087 psi | 55% | 2822 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 37,159 psi | 53% | 2799 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 56,362 psi | 81% | 3084 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 48,907 psi | 70% | 2949 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,608 psi | 54% | 2828 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 28,921 psi | 42% | 2664 fps | 97.1% |
| Vihtavuori N560 | <<locked>> | 94% | 46,644 psi | 67% | 3107 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 98% | 42,424 psi | 61% | 3012 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,362 psi | 54% | 2789 fps | 99.9% |
| Winchester 748 | <<locked>> | 80% | 57,246 psi | 82% | 3136 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 38,972 psi | 56% | 2884 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,322 psi | 34% | 2552 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,417 psi | 75% | 3068 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 39,827 psi | 57% | 2864 fps | 95.6% |
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 123 powders for 37 XC loaded with the .374 | 235gr | Rhino Penetrator. Alliant Reloder-26 delivers the highest muzzle velocity at 3,360 fps; across all powders the maximum-charge window runs from 1,959 fps to 3,360 fps. Accurate 3100 gives the best case fill at 100 %, and 123 of the 123 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 235.0 gr projectile in 0.374" 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-16 rank at the top here: for 37 XC with the .374 | 235gr | Rhino Penetrator 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.