Load Specifications
Load data in caliber 7 x 50 R with .284 | 139gr | Sellier & Bellot SPRN bullet and 41 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 ADI AR 2219.
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% | 46,572 psi | 88% | 2270 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,020 psi | 85% | 2333 fps | 99.5% |
| Accurate 2460 | <<locked>> | 98% | 46,746 psi | 88% | 2375 fps | 97.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,098 psi | 63% | 2211 fps | 97.9% |
| Accurate 2520ᴾ | <<locked>> | 100% | 43,250 psi | 82% | 2362 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 92% | 47,413 psi | 90% | 2277 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 90% | 45,324 psi | 86% | 2244 fps | 96.7% |
| ADI AR 2207 | <<locked>> | 90% | 46,412 psi | 88% | 2323 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 47,210 psi | 89% | 2398 fps | 98.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,626 psi | 79% | 2356 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 46,528 psi | 88% | 2365 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 45,672 psi | 86% | 2290 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 45,542 psi | 86% | 2277 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 96% | 45,600 psi | 86% | 2372 fps | 98.5% |
| Hodgdon H335 | <<locked>> | 96% | 46,282 psi | 87% | 2388 fps | 97.7% |
| Hodgdon H4198 | <<locked>> | 88% | 46,833 psi | 88% | 2280 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,430 psi | 59% | 1401 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,639 psi | 75% | 2333 fps | 98.1% |
| IMR 4198 | <<locked>> | 94% | 45,716 psi | 86% | 2303 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,833 psi | 88% | 2254 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 45,237 psi | 85% | 2352 fps | 96.6% |
| Lovex D073.5 | <<locked>> | 98% | 46,862 psi | 89% | 2372 fps | 96.2% |
| Lovex S053 | <<locked>> | 84% | 45,803 psi | 87% | 2218 fps | 100% |
| Norma 200 | <<locked>> | 92% | 46,557 psi | 88% | 2349 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 40,437 psi | 76% | 2300 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,299 psi | 59% | 1437 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 46,137 psi | 87% | 2283 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 45,614 psi | 86% | 2352 fps | 96.5% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,802 psi | 85% | 2333 fps | 97.2% |
| Shooters World AR Plus | <<locked>> | 90% | 45,237 psi | 85% | 2352 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,862 psi | 89% | 2096 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 47,906 psi | 90% | 2405 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 47,442 psi | 90% | 2365 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 44,875 psi | 85% | 2274 fps | 97.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,911 psi | 68% | 2142 fps | 96% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,453 psi | 80% | 2267 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 90% | 46,572 psi | 88% | 2283 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 47,210 psi | 89% | 2316 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,772 psi | 83% | 2280 fps | 99.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,940 psi | 68% | 2234 fps | 98.2% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 38,363 psi | 72% | 2234 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% | 38,392 psi | 73% | 2146 fps | 99.2% |
| Accurate 2015 | <<locked>> | 84% | 27,717 psi | 52% | 2014 fps | 95.4% |
| Accurate 2460 | <<locked>> | 92% | 38,276 psi | 72% | 2241 fps | 95.6% |
| Accurate 2495 | <<locked>> | 92% | 25,498 psi | 48% | 2044 fps | 95.1% |
| Accurate 2520 | <<locked>> | 98% | 40,176 psi | 76% | 2313 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 33,344 psi | 63% | 2037 fps | 95.6% |
| Accurate LT-32 | <<locked>> | 86% | 40,001 psi | 76% | 2156 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 34,026 psi | 64% | 2126 fps | 100% |
| ADI AR 2219 | 23.7 gr | 84% | 34,200 psi | 65% | 2169 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 22,902 psi | 43% | 1932 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 28,297 psi | 53% | 2034 fps | 96.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,868 psi | 68% | 2133 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,966 psi | 58% | 2021 fps | 95.1% |
| Hodgdon H322 | 23.5 gr | 86% | 33,460 psi | 63% | 2152 fps | 95.3% |
| Hodgdon H335 | 26.3 gr | 90% | 38,276 psi | 72% | 2254 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 36,782 psi | 69% | 2113 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,293 psi | 44% | 1253 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 31,198 psi | 59% | 2159 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 30,821 psi | 58% | 2037 fps | 98.4% |
| IMR 4227 | <<locked>> | 80% | 41,582 psi | 79% | 2178 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 39,131 psi | 74% | 2254 fps | 95% |
| Lovex D073.5 | <<locked>> | 96% | 44,164 psi | 83% | 2333 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 40,756 psi | 77% | 2146 fps | 100% |
| Norma 200 | <<locked>> | 80% | 32,111 psi | 61% | 2106 fps | 98.7% |
| Norma 202 | <<locked>> | 96% | 35,607 psi | 67% | 2211 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,916 psi | 43% | 1280 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 41,089 psi | 78% | 2208 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 39,769 psi | 75% | 2257 fps | 95% |
| Rottweil R 901 | <<locked>> | 94% | 37,420 psi | 71% | 2208 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 86% | 39,131 psi | 74% | 2254 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,913 psi | 72% | 1978 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 36,535 psi | 69% | 2218 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 31,096 psi | 59% | 2077 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 37,159 psi | 70% | 2149 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 33,547 psi | 63% | 2096 fps | 95.2% |
| Somchem S335 | <<locked>> | 92% | 33,533 psi | 63% | 2110 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 34,185 psi | 65% | 2096 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,702 psi | 52% | 1969 fps | 96.3% |
| Vihtavuori N133 | <<locked>> | 86% | 28,718 psi | 54% | 2001 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 92% | 28,224 psi | 53% | 2067 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 98% | 36,303 psi | 69% | 2198 fps | 95.5% |
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 | 139gr | Sellier & Bellot SPRN. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,461 fps; across all powders the maximum-charge window runs from 1,401 fps to 2,461 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 59–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.284" calls for a 1:15.0 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, ADI AR 2219 rank at the top here: for 7 x 50 R with the .284 | 139gr | Sellier & Bellot SPRN 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.