Load Specifications
Load data in caliber 7 x 50 R with .284 | 175gr | Speer Grand Slam bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Accurate 2460 and Hodgdon H322.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 45,876 psi | 87% | 1936 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 47,384 psi | 90% | 2028 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 45,963 psi | 87% | 2034 fps | 98.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,331 psi | 67% | 1939 fps | 99.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 45,687 psi | 86% | 2067 fps | 98.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 33,025 psi | 62% | 1916 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 90% | 46,354 psi | 88% | 1939 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 90% | 46,833 psi | 88% | 1946 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 88% | 45,818 psi | 87% | 1972 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 46,615 psi | 88% | 2051 fps | 99.5% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 47,413 psi | 90% | 2047 fps | 96.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 44,034 psi | 83% | 2051 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 46,905 psi | 89% | 2110 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 94% | 45,788 psi | 86% | 2014 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 47,674 psi | 90% | 1982 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 47,152 psi | 89% | 1975 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 98% | 47,572 psi | 90% | 2008 fps | 97.5% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 43,918 psi | 83% | 2057 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 96% | 47,906 psi | 90% | 2067 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 94% | 45,905 psi | 87% | 2051 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 86% | 45,469 psi | 86% | 1936 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,097 psi | 61% | 1191 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 41,916 psi | 79% | 2044 fps | 99.6% |
| IMR 4198 | <<locked>> | 92% | 45,513 psi | 86% | 1965 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 45,905 psi | 87% | 1909 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 47,413 psi | 90% | 2047 fps | 96.9% |
| Lovex D073.4 | <<locked>> | 90% | 47,253 psi | 89% | 2047 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 96% | 46,543 psi | 88% | 2041 fps | 97.7% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 40,495 psi | 76% | 2011 fps | 97.4% |
| Lovex S053 | <<locked>> | 84% | 47,703 psi | 90% | 1906 fps | 100% |
| Norma 200 | <<locked>> | 90% | 46,238 psi | 87% | 2005 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 42,627 psi | 81% | 1988 fps | 96% |
| Norma 202ᴾ | <<locked>> | 100% | 42,598 psi | 80% | 2011 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,633 psi | 60% | 1214 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 45,339 psi | 86% | 1936 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 47,819 psi | 90% | 2051 fps | 98.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 46,920 psi | 89% | 2034 fps | 98.8% |
| Shooters World AR Plus | <<locked>> | 90% | 47,253 psi | 89% | 2047 fps | 98.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 40,495 psi | 76% | 2011 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 45,571 psi | 86% | 1985 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 46,514 psi | 88% | 1775 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 47,094 psi | 89% | 2060 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 47,166 psi | 89% | 2024 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 46,804 psi | 88% | 1978 fps | 98.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,376 psi | 71% | 1870 fps | 98% |
| Somchem S321 | <<locked>> | 98% | 47,587 psi | 90% | 2073 fps | 97.3% |
| Somchem S335ᴾ | <<locked>> | 100% | 44,411 psi | 84% | 1975 fps | 99.1% |
| Vihtavuori N120 | <<locked>> | 88% | 45,905 psi | 87% | 1936 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 46,702 psi | 88% | 1978 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 45,730 psi | 86% | 1978 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,753 psi | 71% | 1949 fps | 99.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 40,422 psi | 76% | 1959 fps | 98.2% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 47,587 psi | 90% | 2044 fps | 96.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 39,044 psi | 74% | 1955 fps | 97.4% |
| Winchester 748ᴾ | <<locked>> | 100% | 45,208 psi | 85% | 2067 fps | 97.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 40,161 psi | 76% | 1864 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 25,860 psi | 49% | 1690 fps | 96.5% |
| Accurate 2460 | 20.6 gr | 84% | 31,067 psi | 59% | 1811 fps | 95.1% |
| Accurate 2495 | <<locked>> | 86% | 22,669 psi | 43% | 1696 fps | 95.8% |
| Accurate 2520 | <<locked>> | 90% | 32,721 psi | 62% | 1877 fps | 95.2% |
| Accurate 4064 | <<locked>> | 96% | 29,182 psi | 55% | 1844 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 34,621 psi | 65% | 1772 fps | 97.6% |
| Accurate LT-32 | <<locked>> | 80% | 35,041 psi | 66% | 1775 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 36,100 psi | 68% | 1847 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 31,560 psi | 60% | 1821 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 96% | 41,611 psi | 79% | 1969 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 23,989 psi | 45% | 1699 fps | 98% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 41,481 psi | 78% | 2034 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,863 psi | 56% | 1775 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,492 psi | 71% | 1850 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,430 psi | 61% | 1765 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 37,840 psi | 71% | 1870 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 96% | 38,464 psi | 73% | 1978 fps | 95.5% |
| Hodgdon H322 | 18.7 gr | 80% | 29,153 psi | 55% | 1772 fps | 95.6% |
| Hodgdon H335 | 20.5 gr | 82% | 31,082 psi | 59% | 1818 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 38,232 psi | 72% | 1834 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,540 psi | 44% | 1060 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 25,962 psi | 49% | 1749 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 32,430 psi | 61% | 1775 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 43,424 psi | 82% | 1877 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 41,611 psi | 79% | 1969 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 33,431 psi | 63% | 1847 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 88% | 35,491 psi | 67% | 1886 fps | 95% |
| Lovex D073.6 | <<locked>> | 94% | 32,982 psi | 62% | 1890 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 42,801 psi | 81% | 1850 fps | 100% |
| Norma 200 | <<locked>> | 80% | 33,953 psi | 64% | 1834 fps | 99.8% |
| Norma 201 | <<locked>> | 98% | 40,379 psi | 76% | 1955 fps | 95.4% |
| Norma 202 | <<locked>> | 90% | 31,372 psi | 59% | 1831 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,293 psi | 44% | 1083 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,946 psi | 81% | 1906 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 34,751 psi | 66% | 1864 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 86% | 31,357 psi | 59% | 1795 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 33,431 psi | 63% | 1847 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 94% | 32,982 psi | 62% | 1890 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 42,583 psi | 80% | 1946 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,494 psi | 75% | 1696 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 31,763 psi | 60% | 1824 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 30,835 psi | 58% | 1778 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 32,300 psi | 61% | 1768 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 29,457 psi | 56% | 1732 fps | 95.6% |
| Somchem S321 | <<locked>> | 92% | 38,972 psi | 74% | 1955 fps | 95.3% |
| Somchem S335 | <<locked>> | 84% | 27,833 psi | 53% | 1709 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 36,318 psi | 69% | 1818 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,138 psi | 55% | 1719 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 80% | 25,425 psi | 48% | 1650 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 84% | 23,598 psi | 45% | 1677 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 90% | 29,936 psi | 57% | 1781 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 94% | 39,247 psi | 74% | 1929 fps | 95% |
| Vihtavuori N540 | <<locked>> | 94% | 32,198 psi | 61% | 1841 fps | 95.4% |
| Winchester 748 | <<locked>> | 94% | 37,710 psi | 71% | 1955 fps | 95.4% |
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 55 powders for 7 x 50 R loaded with the .284 | 175gr | Speer Grand Slam. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,110 fps; across all powders the maximum-charge window runs from 1,191 fps to 2,110 fps. Accurate 2015 gives the best case fill at 100 %, and 55 of the 55 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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 H335, Accurate 2460, Hodgdon H322 rank at the top here: for 7 x 50 R with the .284 | 175gr | Speer Grand Slam they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.