Load Specifications
Load data in caliber 7 x 50 R with .284 | 160gr | Alaska Bullet Works Kodiak SP SPBC bullet and 43 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>> | 86% | 44,976 psi | 85% | 2014 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,279 psi | 82% | 2070 fps | 99.5% |
| Accurate 2460 | <<locked>> | 98% | 44,788 psi | 85% | 2110 fps | 97.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 31,328 psi | 59% | 1965 fps | 97.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 41,234 psi | 78% | 2096 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 92% | 46,224 psi | 87% | 2024 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 92% | 46,789 psi | 88% | 2028 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 92% | 47,674 psi | 90% | 2093 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 45,339 psi | 86% | 2126 fps | 98.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,350 psi | 76% | 2096 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 47,442 psi | 90% | 2133 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 46,586 psi | 88% | 2064 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 46,659 psi | 88% | 2057 fps | 99.1% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,152 psi | 89% | 2087 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 98% | 46,586 psi | 88% | 2142 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 98% | 47,572 psi | 90% | 2162 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 90% | 47,848 psi | 90% | 2054 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,154 psi | 59% | 1237 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 37,942 psi | 72% | 2067 fps | 98% |
| IMR 4198 | <<locked>> | 96% | 47,094 psi | 89% | 2080 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 45,310 psi | 86% | 1995 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,209 psi | 87% | 2126 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 98% | 44,759 psi | 85% | 2106 fps | 96.1% |
| Lovex S053 | <<locked>> | 86% | 47,007 psi | 89% | 1995 fps | 100% |
| Norma 200 | <<locked>> | 94% | 47,195 psi | 89% | 2116 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 38,464 psi | 73% | 2037 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,169 psi | 59% | 1270 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,500 psi | 90% | 2060 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,398 psi | 88% | 2123 fps | 97% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 42,496 psi | 80% | 2064 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 92% | 46,209 psi | 87% | 2126 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,050 psi | 87% | 1864 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 45,542 psi | 86% | 2129 fps | 97.8% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 45,890 psi | 87% | 2100 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 42,583 psi | 80% | 2008 fps | 97% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 34,113 psi | 64% | 1893 fps | 95.8% |
| Somchem S321ᴾ | <<locked>> | 100% | 46,543 psi | 88% | 2149 fps | 95.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 40,857 psi | 77% | 2014 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 92% | 47,877 psi | 90% | 2057 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 45,484 psi | 86% | 2057 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 41,626 psi | 79% | 2014 fps | 99.1% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 33,982 psi | 64% | 1975 fps | 98.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,231 psi | 70% | 1991 fps | 96.2% |
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% | 37,347 psi | 71% | 1909 fps | 99.2% |
| Accurate 2015 | <<locked>> | 84% | 26,281 psi | 50% | 1781 fps | 95.3% |
| Accurate 2460 | <<locked>> | 92% | 36,434 psi | 69% | 1988 fps | 95.5% |
| Accurate 2495 | <<locked>> | 92% | 24,134 psi | 46% | 1818 fps | 95.1% |
| Accurate 2520 | <<locked>> | 98% | 38,450 psi | 73% | 2057 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 32,227 psi | 61% | 1808 fps | 95.6% |
| Accurate LT-32 | <<locked>> | 86% | 38,870 psi | 73% | 1913 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 33,112 psi | 63% | 1893 fps | 100% |
| ADI AR 2219 | 20.1 gr | 84% | 32,895 psi | 62% | 1923 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 22,118 psi | 42% | 1716 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,224 psi | 51% | 1808 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,664 psi | 65% | 1893 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,023 psi | 57% | 1798 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 98% | 44,135 psi | 83% | 2044 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 86% | 32,053 psi | 61% | 1906 fps | 95.3% |
| Hodgdon H335 | 22.3 gr | 90% | 36,637 psi | 69% | 1998 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 35,607 psi | 67% | 1873 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,221 psi | 44% | 1106 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 29,878 psi | 56% | 1913 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 30,139 psi | 57% | 1814 fps | 98.6% |
| IMR 4227 | <<locked>> | 80% | 40,466 psi | 76% | 1932 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 37,449 psi | 71% | 1998 fps | 95% |
| Lovex D073.5 | <<locked>> | 96% | 41,814 psi | 79% | 2067 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 39,885 psi | 75% | 1906 fps | 100% |
| Norma 200 | <<locked>> | 80% | 30,995 psi | 59% | 1870 fps | 98.8% |
| Norma 202 | <<locked>> | 96% | 34,098 psi | 64% | 1962 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,902 psi | 43% | 1132 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,813 psi | 75% | 1959 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 38,537 psi | 73% | 2008 fps | 95% |
| Rottweil R 901 | <<locked>> | 94% | 35,824 psi | 68% | 1959 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 86% | 37,449 psi | 71% | 1998 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,941 psi | 70% | 1752 fps | 100% |
| SNPE Vectan SP 10 | 21.3 gr | 86% | 35,070 psi | 66% | 1969 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 28,413 psi | 54% | 1808 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 35,563 psi | 67% | 1903 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 32,387 psi | 61% | 1860 fps | 95.2% |
| Somchem S321 | <<locked>> | 98% | 43,482 psi | 82% | 2106 fps | 95% |
| Somchem S335 | <<locked>> | 92% | 32,300 psi | 61% | 1873 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 33,344 psi | 63% | 1867 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,803 psi | 51% | 1752 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 86% | 27,949 psi | 53% | 1778 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 92% | 27,064 psi | 51% | 1834 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 98% | 34,838 psi | 66% | 1949 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 70 powders for 7 x 50 R loaded with the .284 | 160gr | Alaska Bullet Works Kodiak SP SPBC. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,178 fps; across all powders the maximum-charge window runs from 1,237 fps to 2,178 fps. Accurate 2015 gives the best case fill at 100 %, and 70 of the 70 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 160.0 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 160gr | Alaska Bullet Works Kodiak SP SPBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 4064 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss 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.