Load Specifications
Load data in caliber 7 x 50 R with .284 | 174gr | Prvi Partizan SP bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 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>> | 84% | 45,252 psi | 85% | 1932 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 46,644 psi | 88% | 2021 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 45,382 psi | 86% | 2028 fps | 98.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 34,664 psi | 65% | 1932 fps | 99.3% |
| Accurate 2520ᴾ | <<locked>> | 100% | 45,034 psi | 85% | 2060 fps | 98.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 32,416 psi | 61% | 1906 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 90% | 46,311 psi | 87% | 1939 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 90% | 46,847 psi | 88% | 1946 fps | 98.2% |
| ADI AR 2207 | <<locked>> | 88% | 44,991 psi | 85% | 1965 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 45,977 psi | 87% | 2044 fps | 99.4% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 46,253 psi | 87% | 2031 fps | 96.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 43,424 psi | 82% | 2047 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 46,209 psi | 87% | 2103 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 94% | 45,063 psi | 85% | 2008 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 47,021 psi | 89% | 1975 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 46,630 psi | 88% | 1969 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 98% | 47,050 psi | 89% | 2001 fps | 97.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 42,844 psi | 81% | 2044 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 96% | 47,239 psi | 89% | 2060 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 96% | 47,776 psi | 90% | 2077 fps | 99% |
| Hodgdon H4198 | <<locked>> | 88% | 47,906 psi | 90% | 1969 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,850 psi | 60% | 1188 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 41,394 psi | 78% | 2037 fps | 99.4% |
| IMR 4198 | <<locked>> | 94% | 47,297 psi | 89% | 1988 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 45,788 psi | 86% | 1909 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 46,253 psi | 87% | 2031 fps | 96.5% |
| Lovex D073.4 | <<locked>> | 90% | 46,586 psi | 88% | 2041 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 96% | 45,310 psi | 86% | 2028 fps | 97.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 39,363 psi | 74% | 1995 fps | 97% |
| Lovex S053 | <<locked>> | 84% | 46,949 psi | 89% | 1900 fps | 100% |
| Norma 200 | <<locked>> | 90% | 45,542 psi | 86% | 1998 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 42,018 psi | 79% | 1982 fps | 95.6% |
| Norma 202ᴾ | <<locked>> | 100% | 42,032 psi | 79% | 2005 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,386 psi | 59% | 1214 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 47,747 psi | 90% | 1965 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 46,557 psi | 88% | 2037 fps | 98% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 46,267 psi | 87% | 2028 fps | 98.6% |
| Shooters World AR Plus | <<locked>> | 90% | 46,586 psi | 88% | 2041 fps | 98.1% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 39,363 psi | 74% | 1995 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 45,774 psi | 86% | 1768 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 45,847 psi | 87% | 2044 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 46,441 psi | 88% | 2018 fps | 99.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 46,137 psi | 87% | 1972 fps | 98.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 36,941 psi | 70% | 1864 fps | 97.8% |
| Somchem S321 | <<locked>> | 98% | 46,992 psi | 89% | 2067 fps | 97% |
| Somchem S335ᴾ | <<locked>> | 100% | 43,859 psi | 83% | 1969 fps | 99% |
| Vihtavuori N120 | <<locked>> | 88% | 45,179 psi | 85% | 1929 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 46,006 psi | 87% | 1972 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 45,092 psi | 85% | 1975 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,217 psi | 70% | 1946 fps | 99.4% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 39,885 psi | 75% | 1952 fps | 98% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 46,978 psi | 89% | 2034 fps | 96.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 38,058 psi | 72% | 1942 fps | 97% |
| Winchester 748ᴾ | <<locked>> | 100% | 44,672 psi | 84% | 2060 fps | 97% |
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% | 39,566 psi | 75% | 1857 fps | 99.8% |
| Accurate 2015 | <<locked>> | 80% | 25,382 psi | 48% | 1680 fps | 96.1% |
| Accurate 2460 | <<locked>> | 86% | 32,648 psi | 62% | 1841 fps | 95.5% |
| Accurate 2495 | <<locked>> | 86% | 22,176 psi | 42% | 1686 fps | 95.3% |
| Accurate 2520 | <<locked>> | 92% | 34,040 psi | 64% | 1900 fps | 95.5% |
| Accurate 4064 | <<locked>> | 96% | 28,572 psi | 54% | 1834 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 34,084 psi | 64% | 1762 fps | 97.3% |
| Accurate LT-32 | <<locked>> | 80% | 34,505 psi | 65% | 1765 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 35,404 psi | 67% | 1841 fps | 100% |
| ADI AR 2219 | 19.1 gr | 80% | 31,067 psi | 59% | 1811 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 96% | 41,017 psi | 77% | 1959 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 23,598 psi | 45% | 1690 fps | 97.7% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 43,120 psi | 81% | 2057 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,660 psi | 56% | 1775 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,854 psi | 70% | 1841 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 31,966 psi | 60% | 1759 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 92% | 39,769 psi | 75% | 1900 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 96% | 37,985 psi | 72% | 1972 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 28,689 psi | 54% | 1762 fps | 95.2% |
| Hodgdon H335 | 20.8 gr | 84% | 32,634 psi | 62% | 1847 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 37,579 psi | 71% | 1827 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,250 psi | 44% | 1056 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 26,934 psi | 51% | 1772 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 31,836 psi | 60% | 1765 fps | 99.5% |
| IMR 4227 | <<locked>> | 80% | 42,699 psi | 81% | 1870 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 41,017 psi | 77% | 1959 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 82% | 35,157 psi | 66% | 1877 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 90% | 36,898 psi | 70% | 1909 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 96% | 34,722 psi | 66% | 1923 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 42,047 psi | 79% | 1841 fps | 100% |
| Norma 200 | <<locked>> | 80% | 33,315 psi | 63% | 1824 fps | 99.7% |
| Norma 201 | <<locked>> | 98% | 39,813 psi | 75% | 1949 fps | 95% |
| Norma 202 | <<locked>> | 90% | 30,850 psi | 58% | 1824 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,496 psi | 44% | 1089 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,279 psi | 80% | 1900 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 36,579 psi | 69% | 1893 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 88% | 32,445 psi | 61% | 1814 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 82% | 35,157 psi | 66% | 1877 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 96% | 34,722 psi | 66% | 1923 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,291 psi | 74% | 1696 fps | 100% |
| SNPE Vectan SP 10 | 19.8 gr | 80% | 31,299 psi | 59% | 1818 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 30,269 psi | 57% | 1768 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 32,256 psi | 61% | 1768 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 29,022 psi | 55% | 1726 fps | 95.2% |
| Somchem S321 | <<locked>> | 94% | 41,089 psi | 78% | 1988 fps | 95.7% |
| Somchem S335 | <<locked>> | 86% | 29,225 psi | 55% | 1739 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 35,621 psi | 67% | 1811 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,645 psi | 54% | 1709 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 80% | 24,961 psi | 47% | 1640 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 86% | 24,453 psi | 46% | 1699 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 92% | 31,531 psi | 60% | 1814 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 96% | 41,466 psi | 78% | 1962 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 94% | 31,778 psi | 60% | 1834 fps | 95% |
| Winchester 748 | <<locked>> | 94% | 37,260 psi | 70% | 1946 fps | 95% |
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 54 powders for 7 x 50 R loaded with the .284 | 174gr | Prvi Partizan SP. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,103 fps; across all powders the maximum-charge window runs from 1,188 fps to 2,103 fps. Accurate 2015 gives the best case fill at 100 %, and 54 of the 54 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:11.5 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 174gr | Prvi Partizan SP 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.