Load Specifications
Load data in caliber .500 Jeffery Riml. with .510 | 600gr | Barnes RNSP bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Alliant Reloder-16 and Somchem S365.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100ᴾ | <<locked>> | 100% | 38,667 psi | 83% | 2182 fps | 96.2% |
| Accurate 4064 | <<locked>> | 82% | 40,422 psi | 87% | 2149 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 41,452 psi | 89% | 2238 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 82% | 39,537 psi | 85% | 2123 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 41,626 psi | 90% | 2185 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,220 psi | 89% | 2247 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,089 psi | 89% | 2270 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,449 psi | 81% | 2208 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,350 psi | 89% | 2339 fps | 98.3% |
| Bofors RP3 | <<locked>> | 84% | 41,292 psi | 89% | 2188 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 82% | 39,610 psi | 85% | 2149 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 90% | 41,510 psi | 89% | 2234 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 40,350 psi | 87% | 2192 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 76% | 1391 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,510 psi | 89% | 2149 fps | 99% |
| IMR 4831 | <<locked>> | 92% | 39,856 psi | 86% | 2195 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 41,408 psi | 89% | 2152 fps | 99.8% |
| Lovex S065 | <<locked>> | 88% | 40,814 psi | 88% | 2149 fps | 97.1% |
| Lovex S070 | <<locked>> | 90% | 41,060 psi | 88% | 2172 fps | 96% |
| Norma 203B | <<locked>> | 82% | 41,350 psi | 89% | 2185 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 41,510 psi | 89% | 2234 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 82% | 40,857 psi | 88% | 2198 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 92% | 40,553 psi | 87% | 2224 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,897 psi | 77% | 1427 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,045 psi | 86% | 2136 fps | 96.1% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,002 psi | 88% | 2270 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,017 psi | 88% | 2254 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,307 psi | 89% | 2267 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 86% | 41,394 psi | 89% | 2185 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,814 psi | 88% | 2149 fps | 97.1% |
| Shooters World Precision | <<locked>> | 82% | 41,408 psi | 89% | 2152 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 90% | 41,060 psi | 88% | 2172 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 39,914 psi | 86% | 2188 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,597 psi | 90% | 2087 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 39,697 psi | 86% | 2146 fps | 99.3% |
| Somchem S365 | <<locked>> | 94% | 39,523 psi | 85% | 2241 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 40,306 psi | 87% | 2133 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 90% | 40,785 psi | 88% | 2188 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 41,756 psi | 90% | 2149 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 40,016 psi | 86% | 2192 fps | 97.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,640 psi | 88% | 2270 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 40,727 psi | 88% | 2172 fps | 99.6% |
| Winchester 760 | <<locked>> | 90% | 41,611 psi | 90% | 2234 fps | 96% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,402 psi | 72% | 2211 fps | 98.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 98% | 36,129 psi | 78% | 2136 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 37,956 psi | 82% | 2106 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 29,501 psi | 64% | 2008 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 37,202 psi | 80% | 2080 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,695 psi | 79% | 2100 fps | 99.1% |
| Alliant Reloder-16 | 102.8 gr | 82% | 30,429 psi | 66% | 2021 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,604 psi | 68% | 2077 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 27,804 psi | 60% | 1991 fps | 95.6% |
| Alliant Reloder-26 | 130.1 gr | 94% | 33,721 psi | 73% | 2182 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 36,216 psi | 78% | 2103 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 80% | 37,144 psi | 80% | 2106 fps | 97% |
| Hodgdon H414 | <<locked>> | 88% | 38,943 psi | 84% | 2188 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,194 psi | 56% | 1896 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 57% | 1240 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,073 psi | 84% | 2106 fps | 98.6% |
| IMR 4831 | <<locked>> | 84% | 30,806 psi | 66% | 2021 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 38,928 psi | 84% | 2110 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 36,129 psi | 78% | 2064 fps | 95.7% |
| Lovex S070 | <<locked>> | 88% | 38,667 psi | 83% | 2129 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 38,769 psi | 84% | 2139 fps | 98.9% |
| Norma URP | <<locked>> | 82% | 30,182 psi | 65% | 2011 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,130 psi | 82% | 2152 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 35,752 psi | 77% | 2133 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 58% | 1273 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,623 psi | 81% | 2093 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,649 psi | 73% | 2133 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 31,415 psi | 68% | 2067 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 33,924 psi | 73% | 2119 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 34,142 psi | 74% | 2057 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,129 psi | 78% | 2064 fps | 95.7% |
| Shooters World Precision | <<locked>> | 80% | 38,928 psi | 84% | 2110 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 38,667 psi | 83% | 2129 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,056 psi | 76% | 2100 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,767 psi | 79% | 2011 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 35,070 psi | 76% | 2064 fps | 98.5% |
| Somchem S365 | 102.5 gr | 80% | 25,440 psi | 55% | 1929 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 80% | 33,257 psi | 72% | 2011 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 31,560 psi | 68% | 2014 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 39,204 psi | 84% | 2110 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 30,937 psi | 67% | 2014 fps | 95% |
| Vihtavuori N555 | <<locked>> | 90% | 29,515 psi | 64% | 2051 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,515 psi | 64% | 1952 fps | 96.8% |
| Winchester 760 | <<locked>> | 88% | 39,059 psi | 84% | 2188 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,702 psi | 60% | 2054 fps | 96% |
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 67 powders for .500 Jeffery Riml. loaded with the .510 | 600gr | Barnes RNSP. Alliant Reloder-26 delivers the highest muzzle velocity at 2,339 fps; across all powders the maximum-charge window runs from 1,391 fps to 2,339 fps. Accurate 3100 gives the best case fill at 100 %, and 67 of the 67 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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 Reloder-26, Alliant Reloder-16, Somchem S365 rank at the top here: for .500 Jeffery Riml. with the .510 | 600gr | Barnes RNSP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.