Load Specifications
Load data in caliber 7 x 50 R with .284 | 144gr | Peregrine VLR-5 bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, Norma 200 and ReloadSwiss RS 36.
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% | 46,934 psi | 89% | 2129 fps | 99.4% |
| Accurate 2015ᴾ | <<locked>> | 100% | 34,896 psi | 66% | 2041 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 98% | 47,094 psi | 89% | 2116 fps | 97.5% |
| ADI AR 2205 | <<locked>> | 82% | 44,802 psi | 85% | 2001 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 47,224 psi | 89% | 2198 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 46,615 psi | 88% | 2224 fps | 97.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 33,388 psi | 63% | 2060 fps | 98.3% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 41,104 psi | 78% | 2149 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 96% | 47,108 psi | 89% | 2169 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 44,933 psi | 85% | 2116 fps | 97.4% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 42,090 psi | 80% | 2159 fps | 96.2% |
| Hodgdon H4198 | <<locked>> | 94% | 46,673 psi | 88% | 2123 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,602 psi | 56% | 1273 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 45,005 psi | 85% | 2146 fps | 99.7% |
| IMR 4227 | <<locked>> | 90% | 47,050 psi | 89% | 2113 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 44,991 psi | 85% | 2103 fps | 99.6% |
| Lovex S053 | <<locked>> | 92% | 47,630 psi | 90% | 2110 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 46,833 psi | 88% | 2218 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,399 psi | 56% | 1309 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 45,484 psi | 86% | 2136 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 44,991 psi | 85% | 2103 fps | 99.6% |
| Shooters World SOCOM | <<locked>> | 82% | 45,136 psi | 85% | 2087 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 46,862 psi | 89% | 1975 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 46,354 psi | 88% | 2228 fps | 96.1% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 43,323 psi | 82% | 2156 fps | 97.6% |
| Vihtavuori N110 | <<locked>> | 86% | 47,776 psi | 90% | 2041 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 47,471 psi | 90% | 2162 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 40,495 psi | 76% | 2083 fps | 98.5% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 35,201 psi | 66% | 1998 fps | 96.1% |
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% | 31,763 psi | 60% | 1896 fps | 96.5% |
| Accurate 2015 | <<locked>> | 96% | 30,966 psi | 58% | 1969 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 90% | 37,492 psi | 71% | 1975 fps | 95.2% |
| ADI AR 2205 | <<locked>> | 80% | 42,206 psi | 80% | 1969 fps | 100% |
| ADI AR 2207 | 16.4 gr | 80% | 26,919 psi | 51% | 1873 fps | 98.7% |
| ADI AR 2219 | <<locked>> | 94% | 38,043 psi | 72% | 2093 fps | 95% |
| Alliant AR-Comp | <<locked>> | 92% | 26,165 psi | 49% | 1900 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 88% | 28,645 psi | 54% | 1929 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 28,674 psi | 54% | 1870 fps | 96.2% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 37,217 psi | 70% | 2005 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 98% | 39,204 psi | 74% | 2113 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 90% | 41,626 psi | 79% | 2051 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,451 psi | 41% | 1132 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 25,657 psi | 48% | 1791 fps | 95% |
| IMR 4227 | <<locked>> | 80% | 34,824 psi | 66% | 1936 fps | 99.3% |
| Lovex D060 | <<locked>> | 80% | 42,511 psi | 80% | 2067 fps | 99.4% |
| Lovex S053 | <<locked>> | 80% | 33,982 psi | 64% | 1919 fps | 100% |
| Norma 200 | 17.2 gr | 80% | 24,685 psi | 47% | 1834 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,987 psi | 40% | 1158 fps | 100% |
| ReloadSwiss RS 36 | 17.1 gr | 80% | 33,489 psi | 63% | 1952 fps | 99% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,511 psi | 80% | 2067 fps | 99.4% |
| Shooters World SOCOM | <<locked>> | 80% | 42,569 psi | 80% | 2054 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 31,836 psi | 60% | 1781 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 43,192 psi | 82% | 2182 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 35,911 psi | 68% | 2034 fps | 95.7% |
| Vihtavuori N110 | <<locked>> | 80% | 40,234 psi | 76% | 1949 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 27,282 psi | 52% | 1854 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 88% | 28,036 psi | 53% | 1864 fps | 95% |
| Vihtavuori N133 | <<locked>> | 98% | 33,243 psi | 63% | 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 46 powders for 7 x 50 R loaded with the .284 | 144gr | Peregrine VLR-5. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,228 fps; across all powders the maximum-charge window runs from 1,273 fps to 2,228 fps. Accurate 2015 gives the best case fill at 100 %, and 46 of the 46 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 144.0 gr projectile in 0.284" calls for a 1:9.5 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 2207, Norma 200, ReloadSwiss RS 36 rank at the top here: for 7 x 50 R with the .284 | 144gr | Peregrine VLR-5 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.