Load Specifications
Load data in caliber .510 DTC with .510 | 370gr | Impala LWHV LS bullet and 35 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Winchester StaBALL HD.
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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Max Load - Barrel Length: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 45,861 psi | 88% | 3241 fps | 99% |
| ADI AR 2209 | <<locked>> | 86% | 46,572 psi | 89% | 3317 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,309 psi | 85% | 3343 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 82% | 46,586 psi | 89% | 3346 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 86% | 46,572 psi | 89% | 3310 fps | 97% |
| Alliant Reloder-22 | <<locked>> | 88% | 44,947 psi | 86% | 3314 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 90% | 45,992 psi | 88% | 3320 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 45,484 psi | 87% | 3360 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 86% | 45,266 psi | 87% | 3386 fps | 99.8% |
| Bofors RP15 | <<locked>> | 90% | 44,498 psi | 85% | 3301 fps | 96.5% |
| Bofors RP30 | <<locked>> | 96% | 45,020 psi | 86% | 3340 fps | 96.1% |
| Bofors RP5 | <<locked>> | 88% | 44,947 psi | 86% | 3314 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 44,353 psi | 85% | 3212 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 44,541 psi | 85% | 3406 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,173 psi | 71% | 2234 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 46,862 psi | 90% | 3255 fps | 98% |
| IMR 4831 | <<locked>> | 82% | 46,949 psi | 90% | 3281 fps | 99.9% |
| Lovex S071 | <<locked>> | 94% | 47,224 psi | 90% | 3268 fps | 99.2% |
| Norma 204 | <<locked>> | 82% | 47,065 psi | 90% | 3301 fps | 96.9% |
| Norma 217ᴾ | <<locked>> | 100% | 40,147 psi | 77% | 3264 fps | 96.8% |
| Norma MRP | <<locked>> | 86% | 44,324 psi | 85% | 3333 fps | 98% |
| Ramshot Grand | <<locked>> | 90% | 46,108 psi | 88% | 3356 fps | 96% |
| Ramshot Hunter | <<locked>> | 82% | 46,876 psi | 90% | 3317 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 92% | 44,730 psi | 86% | 3287 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,971 psi | 73% | 2287 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 47,166 psi | 90% | 3379 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 44,570 psi | 85% | 3389 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 86% | 46,050 psi | 88% | 3297 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 45,658 psi | 87% | 3287 fps | 96.9% |
| Somchem S365 | <<locked>> | 82% | 45,063 psi | 86% | 3278 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 46,949 psi | 90% | 3274 fps | 98% |
| Vihtavuori N165 | <<locked>> | 90% | 46,267 psi | 89% | 3245 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 86% | 45,556 psi | 87% | 3297 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 92% | 45,527 psi | 87% | 3451 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 46,137 psi | 88% | 3251 fps | 96.9% |
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% | 35,549 psi | 68% | 2995 fps | 96.4% |
| ADI AR 2209 | <<locked>> | 82% | 41,031 psi | 79% | 3182 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 94% | 36,854 psi | 71% | 3136 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,772 psi | 84% | 3281 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 82% | 41,089 psi | 79% | 3179 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 84% | 39,508 psi | 76% | 3179 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,504 psi | 64% | 3018 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 31,430 psi | 60% | 2969 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,608 psi | 70% | 3173 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 41,756 psi | 80% | 3235 fps | 95.7% |
| Bofors RP30 | <<locked>> | 94% | 42,235 psi | 81% | 3274 fps | 95.2% |
| Bofors RP5 | <<locked>> | 84% | 39,508 psi | 76% | 3179 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,684 psi | 80% | 3153 fps | 99.9% |
| Hodgdon Retumbo | 244.3 gr | 90% | 39,291 psi | 75% | 3258 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 53% | 2008 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,063 psi | 84% | 3192 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 44,092 psi | 84% | 3219 fps | 99.6% |
| Lovex S071 | <<locked>> | 82% | 32,880 psi | 63% | 2917 fps | 95.3% |
| Norma 204 | <<locked>> | 80% | 44,092 psi | 84% | 3232 fps | 96.1% |
| Norma 217 | <<locked>> | 98% | 37,768 psi | 72% | 3199 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 36,274 psi | 69% | 3123 fps | 95.4% |
| Ramshot Grand | <<locked>> | 88% | 43,047 psi | 82% | 3278 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 43,990 psi | 84% | 3251 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 88% | 38,899 psi | 75% | 3146 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,572 psi | 55% | 2054 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,005 psi | 84% | 3310 fps | 99.4% |
| ReloadSwiss RS 76 | 255.7 gr | 88% | 36,477 psi | 70% | 3163 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 40,524 psi | 78% | 3163 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 40,161 psi | 77% | 3159 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 42,177 psi | 81% | 3219 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,899 psi | 75% | 3084 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 84% | 38,276 psi | 73% | 3058 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 37,724 psi | 72% | 3114 fps | 99% |
| Winchester StaBALL HD | 223.1 gr | 80% | 30,240 psi | 58% | 3035 fps | 99.1% |
| Winchester Supreme 780 | <<locked>> | 84% | 40,451 psi | 77% | 3120 fps | 95.2% |
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 52 powders for .510 DTC loaded with the .510 | 370gr | Impala LWHV LS. Winchester StaBALL HD delivers the highest muzzle velocity at 3,451 fps; across all powders the maximum-charge window runs from 2,234 fps to 3,451 fps. ADI AR 2225 gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (360 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. ADI AR 2225, Alliant Reloder-33, 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. Hodgdon Retumbo, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for .510 DTC with the .510 | 370gr | Impala LWHV LS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, Alliant Reloder-33, Baschieri & Pellagri 109 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.