Load Specifications
Load data in caliber 7 x 50 R with .284 | 175gr | Nosler Partition bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Hodgdon H322 and SNPE Vectan SP 10.
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>> | 86% | 46,543 psi | 88% | 1916 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,846 psi | 85% | 1972 fps | 99.8% |
| Accurate 2460 | <<locked>> | 98% | 46,412 psi | 88% | 2011 fps | 98.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,967 psi | 62% | 1883 fps | 98.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 42,380 psi | 80% | 1998 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 92% | 46,992 psi | 89% | 1916 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 92% | 47,543 psi | 90% | 1923 fps | 98% |
| ADI AR 2207 | <<locked>> | 90% | 45,774 psi | 86% | 1949 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 46,934 psi | 89% | 2024 fps | 99.3% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 44,266 psi | 84% | 1975 fps | 95.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,191 psi | 78% | 1988 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 47,050 psi | 89% | 2080 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 96% | 46,166 psi | 87% | 1995 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 45,469 psi | 86% | 1929 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 47,819 psi | 90% | 1952 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 98% | 45,629 psi | 86% | 1952 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 96% | 44,976 psi | 85% | 2001 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 96% | 45,919 psi | 87% | 2021 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 88% | 46,514 psi | 88% | 1919 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,386 psi | 59% | 1161 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,320 psi | 74% | 1975 fps | 98.9% |
| IMR 4198 | <<locked>> | 94% | 45,788 psi | 86% | 1942 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,456 psi | 88% | 1890 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 44,266 psi | 84% | 1975 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 92% | 47,471 psi | 90% | 2021 fps | 98% |
| Lovex D073.5 | <<locked>> | 98% | 46,557 psi | 88% | 2011 fps | 97.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 37,492 psi | 71% | 1939 fps | 96.1% |
| Lovex S053 | <<locked>> | 84% | 45,527 psi | 86% | 1857 fps | 100% |
| Norma 200 | <<locked>> | 92% | 45,861 psi | 87% | 1975 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,987 psi | 76% | 1946 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,488 psi | 59% | 1194 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 45,963 psi | 87% | 1919 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 47,659 psi | 90% | 2018 fps | 97.8% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,961 psi | 83% | 1965 fps | 98% |
| Shooters World AR Plus | <<locked>> | 92% | 47,471 psi | 90% | 2021 fps | 98% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 37,492 psi | 71% | 1939 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,804 psi | 88% | 1755 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 46,876 psi | 89% | 2028 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 47,007 psi | 89% | 1995 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,888 psi | 83% | 1913 fps | 97.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,157 psi | 66% | 1804 fps | 96.9% |
| Somchem S321ᴾ | <<locked>> | 100% | 47,819 psi | 90% | 2044 fps | 96.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,409 psi | 80% | 1919 fps | 98.5% |
| Vihtavuori N120 | <<locked>> | 90% | 45,948 psi | 87% | 1913 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 46,717 psi | 88% | 1952 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,859 psi | 81% | 1916 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,172 psi | 66% | 1883 fps | 98.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 38,087 psi | 72% | 1896 fps | 97.2% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 44,976 psi | 85% | 1978 fps | 95.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 36,506 psi | 69% | 1886 fps | 96.2% |
| Winchester 748ᴾ | <<locked>> | 100% | 43,091 psi | 81% | 2005 fps | 96.2% |
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% | 38,261 psi | 72% | 1811 fps | 99.6% |
| Accurate 2015 | <<locked>> | 80% | 24,352 psi | 46% | 1637 fps | 95.3% |
| Accurate 2460 | <<locked>> | 88% | 33,286 psi | 63% | 1824 fps | 95.3% |
| Accurate 2495 | <<locked>> | 88% | 22,220 psi | 42% | 1670 fps | 95% |
| Accurate 2520 | <<locked>> | 94% | 34,563 psi | 65% | 1880 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 33,112 psi | 63% | 1719 fps | 96.7% |
| Accurate LT-32 | <<locked>> | 82% | 35,476 psi | 67% | 1752 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 34,098 psi | 64% | 1795 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 29,921 psi | 57% | 1759 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 98% | 41,872 psi | 79% | 1942 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 22,481 psi | 42% | 1634 fps | 96.7% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 43,758 psi | 83% | 2037 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 28,094 psi | 53% | 1719 fps | 98% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,215 psi | 67% | 1791 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,922 psi | 58% | 1713 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 40,335 psi | 76% | 1880 fps | 95.2% |
| Hodgdon H322 | 18.5 gr | 84% | 31,169 psi | 59% | 1785 fps | 95.8% |
| Hodgdon H335 | 20.2 gr | 86% | 33,011 psi | 62% | 1827 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 36,535 psi | 69% | 1781 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,989 psi | 43% | 1033 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 27,354 psi | 52% | 1755 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 30,719 psi | 58% | 1719 fps | 99.2% |
| IMR 4227 | <<locked>> | 80% | 41,249 psi | 78% | 1827 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 41,872 psi | 79% | 1942 fps | 95% |
| Lovex D073.4 | <<locked>> | 84% | 35,882 psi | 68% | 1864 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 92% | 37,449 psi | 71% | 1890 fps | 95% |
| Lovex D073.6 | <<locked>> | 98% | 34,867 psi | 66% | 1896 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 40,611 psi | 77% | 1798 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,647 psi | 60% | 1775 fps | 99.3% |
| Norma 202 | <<locked>> | 94% | 33,272 psi | 63% | 1841 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,264 psi | 44% | 1066 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,466 psi | 76% | 1850 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 37,043 psi | 70% | 1873 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 90% | 32,866 psi | 62% | 1798 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 84% | 35,882 psi | 68% | 1864 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 98% | 34,867 psi | 66% | 1896 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,247 psi | 72% | 1660 fps | 100% |
| SNPE Vectan SP 10 | 19.8 gr | 84% | 34,069 psi | 64% | 1841 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 29,240 psi | 55% | 1722 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 34,780 psi | 66% | 1785 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 29,718 psi | 56% | 1709 fps | 95% |
| Somchem S321 | <<locked>> | 96% | 42,134 psi | 80% | 1972 fps | 95.5% |
| Somchem S335 | <<locked>> | 88% | 29,660 psi | 56% | 1722 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 34,258 psi | 65% | 1768 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,586 psi | 52% | 1667 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 82% | 25,527 psi | 48% | 1627 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 88% | 24,729 psi | 47% | 1680 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 94% | 31,879 psi | 60% | 1791 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 98% | 41,829 psi | 79% | 1936 fps | 95% |
| Vihtavuori N540 | <<locked>> | 98% | 34,606 psi | 65% | 1854 fps | 95.6% |
| Winchester 748 | <<locked>> | 98% | 40,190 psi | 76% | 1962 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 51 powders for 7 x 50 R loaded with the .284 | 175gr | Nosler Partition. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,080 fps; across all powders the maximum-charge window runs from 1,161 fps to 2,080 fps. Accurate 2015 gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:10.5 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, Hodgdon H322, SNPE Vectan SP 10 rank at the top here: for 7 x 50 R with the .284 | 175gr | Nosler Partition 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.