Load Specifications
Load data in caliber 7 x 50 R with .284 | 166gr | Peregrine VRG-2 bullet and 45 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% | 45,876 psi | 87% | 1998 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,106 psi | 83% | 2054 fps | 99.8% |
| Accurate 2460 | <<locked>> | 98% | 45,020 psi | 85% | 2087 fps | 98.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 31,691 psi | 60% | 1949 fps | 98.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 41,539 psi | 78% | 2077 fps | 97% |
| Accurate LT-30 | <<locked>> | 92% | 46,586 psi | 88% | 2001 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 92% | 47,108 psi | 89% | 2005 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 90% | 45,542 psi | 86% | 2037 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 46,369 psi | 88% | 2113 fps | 99.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,582 psi | 77% | 2070 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 47,805 psi | 90% | 2106 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 46,833 psi | 88% | 2037 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 47,036 psi | 89% | 2031 fps | 99.4% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,398 psi | 90% | 2064 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 98% | 47,674 psi | 90% | 2129 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 96% | 45,426 psi | 86% | 2106 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 88% | 45,716 psi | 86% | 1998 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,314 psi | 59% | 1220 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,653 psi | 73% | 2054 fps | 98.7% |
| IMR 4198 | <<locked>> | 96% | 47,587 psi | 90% | 2054 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,369 psi | 88% | 1978 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,557 psi | 88% | 2103 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 98% | 45,672 psi | 86% | 2093 fps | 96.9% |
| Lovex S053 | <<locked>> | 86% | 47,282 psi | 89% | 1969 fps | 100% |
| Norma 200 | <<locked>> | 92% | 44,788 psi | 85% | 2057 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,189 psi | 74% | 2024 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,705 psi | 58% | 1243 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 45,339 psi | 86% | 2001 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 47,456 psi | 90% | 2110 fps | 97.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,004 psi | 81% | 2047 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 92% | 46,557 psi | 88% | 2103 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,383 psi | 88% | 1837 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 46,615 psi | 88% | 2116 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 46,325 psi | 88% | 2077 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,424 psi | 82% | 1995 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 34,650 psi | 65% | 1880 fps | 96.7% |
| Somchem S321ᴾ | <<locked>> | 100% | 47,558 psi | 90% | 2136 fps | 96.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,539 psi | 78% | 1998 fps | 98.3% |
| Vihtavuori N120 | <<locked>> | 90% | 45,759 psi | 86% | 2001 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 46,456 psi | 88% | 2041 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,438 psi | 80% | 2001 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,563 psi | 65% | 1962 fps | 98.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,318 psi | 70% | 1969 fps | 96.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 35,955 psi | 68% | 1965 fps | 95.9% |
| Winchester 748ᴾ | <<locked>> | 100% | 42,409 psi | 80% | 2083 fps | 95.9% |
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% | 37,478 psi | 71% | 1883 fps | 99.5% |
| Accurate 2015 | <<locked>> | 82% | 24,656 psi | 47% | 1726 fps | 95.3% |
| Accurate 2460 | <<locked>> | 90% | 34,519 psi | 65% | 1932 fps | 95.6% |
| Accurate 2495 | <<locked>> | 90% | 22,437 psi | 42% | 1755 fps | 95% |
| Accurate 2520 | <<locked>> | 96% | 36,550 psi | 69% | 2001 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 32,314 psi | 61% | 1788 fps | 96.3% |
| Accurate LT-32 | <<locked>> | 84% | 36,999 psi | 70% | 1860 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 33,243 psi | 63% | 1867 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 31,198 psi | 59% | 1870 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 21,886 psi | 41% | 1696 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,166 psi | 51% | 1785 fps | 97.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,664 psi | 65% | 1867 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,052 psi | 57% | 1775 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 96% | 42,148 psi | 80% | 1991 fps | 95.6% |
| Hodgdon H322 | 19.6 gr | 84% | 30,342 psi | 57% | 1854 fps | 95.3% |
| Hodgdon H335 | 21.5 gr | 86% | 32,605 psi | 62% | 1903 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 35,781 psi | 68% | 1854 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,814 psi | 43% | 1086 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 28,268 psi | 53% | 1857 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 30,211 psi | 57% | 1791 fps | 99% |
| IMR 4227 | <<locked>> | 80% | 40,785 psi | 77% | 1906 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 37,565 psi | 71% | 1975 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 94% | 39,668 psi | 75% | 2011 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 40,103 psi | 76% | 1880 fps | 100% |
| Norma 200 | <<locked>> | 80% | 30,763 psi | 58% | 1844 fps | 99.1% |
| Norma 202 | <<locked>> | 94% | 32,372 psi | 61% | 1909 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,437 psi | 42% | 1109 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,103 psi | 76% | 1936 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 36,172 psi | 68% | 1946 fps | 95% |
| Rottweil R 901 | <<locked>> | 92% | 33,750 psi | 64% | 1900 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 86% | 37,565 psi | 71% | 1975 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,101 psi | 70% | 1729 fps | 100% |
| SNPE Vectan SP 10 | 21 gr | 84% | 33,344 psi | 63% | 1913 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 28,442 psi | 54% | 1788 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 33,678 psi | 64% | 1850 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 30,690 psi | 58% | 1808 fps | 95.3% |
| Somchem S321 | <<locked>> | 96% | 40,944 psi | 77% | 2044 fps | 95.1% |
| Somchem S335 | <<locked>> | 90% | 30,545 psi | 58% | 1821 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 33,475 psi | 63% | 1841 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,701 psi | 50% | 1729 fps | 97% |
| Vihtavuori N133 | <<locked>> | 84% | 26,382 psi | 50% | 1726 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 90% | 25,556 psi | 48% | 1781 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 96% | 33,083 psi | 62% | 1896 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 98% | 33,707 psi | 64% | 1923 fps | 95.1% |
| Winchester 748 | <<locked>> | 98% | 39,711 psi | 75% | 2044 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 45 powders for 7 x 50 R loaded with the .284 | 166gr | Peregrine VRG-2. Somchem S321 delivers the highest muzzle velocity at 2,136 fps; across all powders the maximum-charge window runs from 1,220 fps to 2,136 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 58–90 %, leaving at least 10 % headroom. The 166.0 gr projectile in 0.284" calls for a 1:11.0 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 | 166gr | Peregrine VRG-2 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.