Load Specifications
Load data in caliber 7 x 50 R with .284 | 150gr | Nosler Partition bullet and 37 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 and Hodgdon H335.
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>> | 88% | 47,166 psi | 89% | 2129 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 42,018 psi | 79% | 2142 fps | 99.1% |
| Accurate 2460ᴾ | <<locked>> | 100% | 46,717 psi | 88% | 2221 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 30,560 psi | 58% | 2034 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 94% | 47,906 psi | 90% | 2133 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 92% | 45,498 psi | 86% | 2096 fps | 96.5% |
| ADI AR 2207 | <<locked>> | 92% | 46,340 psi | 88% | 2172 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 47,732 psi | 90% | 2247 fps | 98.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 39,146 psi | 74% | 2165 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 98% | 46,296 psi | 87% | 2211 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 90% | 45,934 psi | 87% | 2146 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 45,832 psi | 87% | 2133 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 98% | 45,876 psi | 87% | 2221 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 98% | 46,485 psi | 88% | 2238 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 90% | 47,195 psi | 89% | 2133 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,995 psi | 59% | 1293 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 37,391 psi | 71% | 2142 fps | 97.4% |
| IMR 4198 | <<locked>> | 96% | 45,847 psi | 87% | 2156 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 47,761 psi | 90% | 2116 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 45,324 psi | 86% | 2201 fps | 96.4% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 46,644 psi | 88% | 2218 fps | 95.9% |
| Lovex S053 | <<locked>> | 86% | 46,282 psi | 87% | 2077 fps | 100% |
| Norma 200 | <<locked>> | 94% | 46,673 psi | 88% | 2201 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,922 psi | 58% | 1325 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,036 psi | 89% | 2146 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 45,542 psi | 86% | 2198 fps | 96.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 41,901 psi | 79% | 2142 fps | 96.4% |
| Shooters World AR Plus | <<locked>> | 92% | 45,324 psi | 86% | 2201 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 47,514 psi | 90% | 1965 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 47,630 psi | 90% | 2247 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 47,297 psi | 89% | 2211 fps | 99.2% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 42,134 psi | 80% | 2087 fps | 96.4% |
| Somchem S335ᴾ | <<locked>> | 100% | 40,176 psi | 76% | 2087 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 92% | 46,557 psi | 88% | 2136 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 47,413 psi | 90% | 2172 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 41,118 psi | 78% | 2093 fps | 98.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 33,533 psi | 63% | 2047 fps | 97.5% |
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% | 36,492 psi | 69% | 1975 fps | 98.8% |
| Accurate 2015 | <<locked>> | 86% | 27,427 psi | 52% | 1880 fps | 95.2% |
| Accurate 2460 | <<locked>> | 94% | 38,232 psi | 72% | 2100 fps | 95.4% |
| Accurate 2495 | <<locked>> | 96% | 26,556 psi | 50% | 1949 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 82% | 33,431 psi | 63% | 1906 fps | 95.5% |
| Accurate LT-32 | <<locked>> | 88% | 40,582 psi | 77% | 2021 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 32,126 psi | 61% | 1959 fps | 100% |
| ADI AR 2219 | 21.4 gr | 86% | 34,519 psi | 65% | 2034 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 82% | 22,858 psi | 43% | 1808 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 26,745 psi | 51% | 1870 fps | 96.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 33,634 psi | 64% | 1955 fps | 98.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 31,473 psi | 59% | 1900 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 88% | 33,634 psi | 64% | 2018 fps | 95.2% |
| Hodgdon H335 | 23.7 gr | 92% | 38,435 psi | 73% | 2113 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 35,085 psi | 66% | 1942 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,872 psi | 43% | 1155 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 31,212 psi | 59% | 2021 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 29,457 psi | 56% | 1877 fps | 97.9% |
| IMR 4227 | <<locked>> | 80% | 39,552 psi | 75% | 2005 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 41,756 psi | 79% | 2152 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 98% | 43,584 psi | 82% | 2175 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 39,001 psi | 74% | 1978 fps | 100% |
| Norma 200 | <<locked>> | 80% | 30,313 psi | 57% | 1939 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,539 psi | 43% | 1178 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,146 psi | 74% | 2034 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 42,743 psi | 81% | 2159 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 96% | 37,405 psi | 71% | 2067 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 90% | 41,756 psi | 79% | 2152 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,419 psi | 69% | 1827 fps | 100% |
| SNPE Vectan SP 10 | 22.7 gr | 88% | 36,941 psi | 70% | 2083 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 31,067 psi | 59% | 1939 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 37,304 psi | 70% | 2011 fps | 95.1% |
| Somchem S335 | <<locked>> | 94% | 33,678 psi | 64% | 1978 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 32,372 psi | 61% | 1932 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 25,991 psi | 49% | 1808 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 88% | 29,124 psi | 55% | 1880 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 94% | 28,007 psi | 53% | 1932 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 62 powders for 7 x 50 R loaded with the .284 | 150gr | Nosler Partition. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,300 fps; across all powders the maximum-charge window runs from 1,293 fps to 2,300 fps. Accurate 2015 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. ADI AR 2219, SNPE Vectan SP 10, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 150gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 4064 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.