Load Specifications
Load data in caliber 7 x 50 R with .284 | 140gr | Nosler Expansion Tip bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-7, ADI AR 2207 and Norma 200.
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>> | 92% | 46,064 psi | 87% | 2156 fps | 99.1% |
| Accurate 2015ᴾ | <<locked>> | 100% | 34,592 psi | 65% | 2067 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 98% | 46,949 psi | 89% | 2149 fps | 97.2% |
| ADI AR 2205 | <<locked>> | 84% | 47,616 psi | 90% | 2073 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 47,021 psi | 89% | 2238 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 46,253 psi | 87% | 2254 fps | 96.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 32,692 psi | 62% | 2080 fps | 97.8% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 40,843 psi | 77% | 2182 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 96% | 46,862 psi | 89% | 2205 fps | 99.6% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 47,007 psi | 89% | 2178 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 94% | 45,890 psi | 87% | 2146 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,544 psi | 56% | 1296 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 44,266 psi | 84% | 2172 fps | 99.6% |
| IMR 4227 | <<locked>> | 90% | 46,485 psi | 88% | 2146 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 47,877 psi | 90% | 2182 fps | 99.7% |
| Lovex S053 | <<locked>> | 92% | 46,978 psi | 89% | 2139 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 46,398 psi | 88% | 2251 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,761 psi | 54% | 1322 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 45,440 psi | 86% | 2172 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 47,877 psi | 90% | 2182 fps | 99.7% |
| Shooters World SOCOM | <<locked>> | 84% | 47,805 psi | 90% | 2159 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 46,354 psi | 88% | 2008 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 42,511 psi | 80% | 2178 fps | 97.1% |
| Vihtavuori N110 | <<locked>> | 86% | 47,253 psi | 89% | 2073 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 47,297 psi | 89% | 2198 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 39,610 psi | 75% | 2106 fps | 98.2% |
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% | 31,299 psi | 59% | 1919 fps | 96% |
| Accurate 2015 | <<locked>> | 98% | 32,140 psi | 61% | 2024 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 92% | 39,102 psi | 74% | 2034 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 80% | 41,829 psi | 79% | 2001 fps | 100% |
| ADI AR 2207 | 16.6 gr | 80% | 26,571 psi | 50% | 1896 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 96% | 40,045 psi | 76% | 2162 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 94% | 27,224 psi | 51% | 1955 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 88% | 28,137 psi | 53% | 1952 fps | 95.3% |
| Alliant Reloder-7 | 17.2 gr | 80% | 28,297 psi | 53% | 1893 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 38,957 psi | 74% | 2064 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 90% | 40,959 psi | 77% | 2073 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,509 psi | 41% | 1155 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 26,934 psi | 51% | 1854 fps | 95.3% |
| IMR 4227 | <<locked>> | 80% | 34,447 psi | 65% | 1962 fps | 99.1% |
| Lovex D060 | <<locked>> | 80% | 42,090 psi | 80% | 2096 fps | 99.2% |
| Lovex S053 | <<locked>> | 80% | 33,634 psi | 64% | 1946 fps | 100% |
| Norma 200 | 17.8 gr | 82% | 25,802 psi | 49% | 1890 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,016 psi | 40% | 1181 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 33,069 psi | 62% | 1978 fps | 98.8% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,090 psi | 80% | 2096 fps | 99.2% |
| Shooters World SOCOM | <<locked>> | 80% | 42,047 psi | 79% | 2080 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 31,604 psi | 60% | 1811 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 35,810 psi | 68% | 2067 fps | 95.3% |
| Vihtavuori N110 | <<locked>> | 80% | 39,262 psi | 74% | 1972 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 26,934 psi | 51% | 1877 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 90% | 29,240 psi | 55% | 1919 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 45 powders for 7 x 50 R loaded with the .284 | 140gr | Nosler Expansion Tip. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,257 fps; across all powders the maximum-charge window runs from 1,296 fps to 2,257 fps. Accurate 2015 gives the best case fill at 100 %, and 45 of the 45 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 44–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.0 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. Alliant Reloder-7, ADI AR 2207, Norma 200 rank at the top here: for 7 x 50 R with the .284 | 140gr | Nosler Expansion Tip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2460, Accurate 2495, Hodgdon Benchmark 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.