Load Specifications
Load data in caliber 7 x 50 R with .284 | 140gr | Peregrine Plainsmaster (VLR-4) bullet and 52 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 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% | 45,861 psi | 87% | 2146 fps | 99.1% |
| Accurate 1680 | <<locked>> | 92% | 46,035 psi | 87% | 2149 fps | 99.1% |
| Accurate 2015ᴾ | <<locked>> | 100% | 33,823 psi | 64% | 2051 fps | 95.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 34,084 psi | 64% | 2057 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 98% | 46,050 psi | 87% | 2133 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 98% | 46,325 psi | 88% | 2136 fps | 97% |
| ADI AR 2205 | <<locked>> | 84% | 47,239 psi | 89% | 2064 fps | 100% |
| ADI AR 2205 | <<locked>> | 84% | 46,891 psi | 89% | 2060 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 45,963 psi | 87% | 2218 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 46,267 psi | 87% | 2224 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 45,455 psi | 86% | 2238 fps | 96.5% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 45,672 psi | 86% | 2244 fps | 96.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 32,518 psi | 61% | 2070 fps | 97.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 32,735 psi | 62% | 2073 fps | 97.7% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 39,929 psi | 75% | 2162 fps | 98.5% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 40,176 psi | 76% | 2169 fps | 98.6% |
| Alliant Reloder-7 | <<locked>> | 96% | 45,934 psi | 87% | 2185 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 96% | 46,166 psi | 87% | 2192 fps | 99.5% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 46,905 psi | 89% | 2172 fps | 97.4% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 47,094 psi | 89% | 2175 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 94% | 45,658 psi | 86% | 2136 fps | 96.3% |
| Hodgdon H4198 | <<locked>> | 94% | 45,876 psi | 87% | 2142 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,385 psi | 56% | 1289 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,211 psi | 55% | 1289 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 43,990 psi | 83% | 2162 fps | 99.5% |
| IMR 4198ᴾ | <<locked>> | 100% | 44,222 psi | 84% | 2169 fps | 99.5% |
| IMR 4227 | <<locked>> | 90% | 46,035 psi | 87% | 2133 fps | 100% |
| IMR 4227 | <<locked>> | 90% | 46,369 psi | 88% | 2139 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 47,471 psi | 90% | 2169 fps | 99.7% |
| Lovex D060 | <<locked>> | 84% | 47,108 psi | 89% | 2169 fps | 99.7% |
| Lovex S053 | <<locked>> | 92% | 46,572 psi | 88% | 2129 fps | 100% |
| Lovex S053 | <<locked>> | 92% | 46,920 psi | 89% | 2136 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 45,469 psi | 86% | 2231 fps | 99.6% |
| Norma 200ᴾ | <<locked>> | 100% | 45,730 psi | 86% | 2238 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,138 psi | 55% | 1325 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,993 psi | 55% | 1325 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 47,761 psi | 90% | 2198 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 44,744 psi | 85% | 2159 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 47,471 psi | 90% | 2169 fps | 99.7% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 47,108 psi | 89% | 2169 fps | 99.7% |
| Shooters World SOCOM | <<locked>> | 84% | 47,456 psi | 90% | 2149 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 84% | 47,790 psi | 90% | 2156 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 45,890 psi | 87% | 1998 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 45,585 psi | 86% | 1995 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 42,235 psi | 80% | 2169 fps | 97% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 42,511 psi | 80% | 2175 fps | 97.1% |
| Vihtavuori N110 | <<locked>> | 86% | 46,731 psi | 88% | 2060 fps | 100% |
| Vihtavuori N110 | <<locked>> | 86% | 47,108 psi | 89% | 2067 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 46,209 psi | 87% | 2182 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 46,557 psi | 88% | 2188 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 39,421 psi | 74% | 2096 fps | 98% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 39,610 psi | 75% | 2100 fps | 98.1% |
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% | 31,024 psi | 59% | 1909 fps | 95.8% |
| Accurate 1680 | <<locked>> | 80% | 30,806 psi | 58% | 1906 fps | 95.8% |
| Accurate 2015 | <<locked>> | 98% | 31,865 psi | 60% | 2014 fps | 95.1% |
| Accurate 2015 | <<locked>> | 98% | 32,097 psi | 61% | 2018 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 92% | 38,783 psi | 73% | 2024 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 92% | 39,059 psi | 74% | 2031 fps | 95.3% |
| ADI AR 2205 | <<locked>> | 80% | 41,423 psi | 78% | 1988 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 41,756 psi | 79% | 1995 fps | 100% |
| ADI AR 2207 | 16.5 gr | 80% | 26,208 psi | 50% | 1886 fps | 98.2% |
| ADI AR 2207 | 16.5 gr | 80% | 26,440 psi | 50% | 1893 fps | 98.3% |
| ADI AR 2219 | <<locked>> | 96% | 39,900 psi | 75% | 2152 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 96% | 40,118 psi | 76% | 2159 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 94% | 27,006 psi | 51% | 1942 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 94% | 27,209 psi | 51% | 1949 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 88% | 27,818 psi | 53% | 1939 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 88% | 27,630 psi | 52% | 1939 fps | 95% |
| Alliant Reloder-7 | 17.1 gr | 80% | 27,934 psi | 53% | 1880 fps | 95.5% |
| Alliant Reloder-7 | 17.1 gr | 80% | 28,195 psi | 53% | 1886 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 38,363 psi | 72% | 2047 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 38,537 psi | 73% | 2054 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 90% | 40,712 psi | 77% | 2064 fps | 95% |
| Hodgdon H4198 | <<locked>> | 90% | 40,350 psi | 76% | 2060 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,277 psi | 40% | 1148 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,683 psi | 41% | 1158 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 26,614 psi | 50% | 1841 fps | 95% |
| IMR 4198 | <<locked>> | 84% | 28,021 psi | 53% | 1877 fps | 95.7% |
| IMR 4227 | <<locked>> | 80% | 34,055 psi | 64% | 1952 fps | 99% |
| IMR 4227 | <<locked>> | 80% | 34,360 psi | 65% | 1959 fps | 99.1% |
| Lovex D060 | <<locked>> | 80% | 41,713 psi | 79% | 2087 fps | 99.1% |
| Lovex D060 | <<locked>> | 80% | 42,018 psi | 79% | 2093 fps | 99.2% |
| Lovex S053 | <<locked>> | 80% | 33,214 psi | 63% | 1936 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 33,011 psi | 62% | 1932 fps | 100% |
| Norma 200 | <<locked>> | 82% | 25,483 psi | 48% | 1880 fps | 95% |
| Norma 200 | <<locked>> | 82% | 25,701 psi | 49% | 1886 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,784 psi | 39% | 1175 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,176 psi | 40% | 1184 fps | 100% |
| ReloadSwiss RS 36 | 17.2 gr | 80% | 32,677 psi | 62% | 1969 fps | 98.6% |
| ReloadSwiss RS 36 | 17.2 gr | 80% | 32,924 psi | 62% | 1975 fps | 98.7% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 41,713 psi | 79% | 2087 fps | 99.1% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,018 psi | 79% | 2093 fps | 99.2% |
| Shooters World SOCOM | <<locked>> | 80% | 41,669 psi | 79% | 2070 fps | 99.5% |
| Shooters World SOCOM | <<locked>> | 80% | 41,336 psi | 78% | 2067 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 31,140 psi | 59% | 1798 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 31,459 psi | 59% | 1804 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 37,623 psi | 71% | 2093 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 35,230 psi | 67% | 2054 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 39,349 psi | 74% | 1969 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 39,102 psi | 74% | 1969 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 26,585 psi | 50% | 1867 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 80% | 26,803 psi | 51% | 1873 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 92% | 30,719 psi | 58% | 1946 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 90% | 29,167 psi | 55% | 1916 fps | 95.1% |
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 52 powders for 7 x 50 R loaded with the .284 | 140gr | Peregrine Plainsmaster (VLR-4). ADI AR 2219 delivers the highest muzzle velocity at 2,244 fps; across all powders the maximum-charge window runs from 1,289 fps to 2,244 fps. Accurate 2015 gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2015, ADI AR 2219 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, ReloadSwiss RS 36 rank at the top here: for 7 x 50 R with the .284 | 140gr | Peregrine Plainsmaster (VLR-4) they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.