Load Specifications
Load data in caliber 7 x 50 R with .284 | 140gr | Swift A-Frame bullet and 37 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 Norma 200.
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>> | 88% | 47,152 psi | 89% | 2238 fps | 99.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 42,206 psi | 80% | 2251 fps | 98.9% |
| Accurate 2460ᴾ | <<locked>> | 100% | 46,775 psi | 88% | 2333 fps | 97.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 30,545 psi | 58% | 2129 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 92% | 45,150 psi | 85% | 2201 fps | 98.1% |
| Accurate LT-32 | <<locked>> | 92% | 45,701 psi | 86% | 2205 fps | 96.2% |
| ADI AR 2207 | <<locked>> | 92% | 46,789 psi | 88% | 2290 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 47,630 psi | 90% | 2356 fps | 98.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 39,247 psi | 74% | 2274 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 98% | 46,224 psi | 87% | 2323 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 90% | 45,687 psi | 86% | 2254 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 45,585 psi | 86% | 2234 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 98% | 45,934 psi | 87% | 2333 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 98% | 46,499 psi | 88% | 2346 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 90% | 47,021 psi | 89% | 2238 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,879 psi | 58% | 1365 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 37,492 psi | 71% | 2251 fps | 97.1% |
| IMR 4198 | <<locked>> | 96% | 46,325 psi | 88% | 2274 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 47,645 psi | 90% | 2224 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 45,252 psi | 85% | 2310 fps | 96.1% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 47,050 psi | 89% | 2333 fps | 95.7% |
| Lovex S053 | <<locked>> | 86% | 46,340 psi | 88% | 2188 fps | 100% |
| Norma 200 | <<locked>> | 94% | 46,644 psi | 88% | 2313 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,748 psi | 58% | 1398 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,007 psi | 89% | 2257 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 45,382 psi | 86% | 2303 fps | 95.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 42,090 psi | 80% | 2251 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 92% | 45,252 psi | 85% | 2310 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 47,268 psi | 89% | 2067 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 47,761 psi | 90% | 2362 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 47,805 psi | 90% | 2329 fps | 99.1% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 41,800 psi | 79% | 2185 fps | 96% |
| Somchem S335ᴾ | <<locked>> | 100% | 40,219 psi | 76% | 2192 fps | 96.7% |
| Vihtavuori N120 | <<locked>> | 92% | 46,992 psi | 89% | 2251 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 47,166 psi | 89% | 2277 fps | 99.8% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 40,828 psi | 77% | 2195 fps | 98.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 33,330 psi | 63% | 2142 fps | 97.1% |
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% | 36,535 psi | 69% | 2077 fps | 98.5% |
| Accurate 2015 | <<locked>> | 88% | 29,312 psi | 55% | 2018 fps | 95.6% |
| Accurate 2460 | <<locked>> | 94% | 38,218 psi | 72% | 2201 fps | 95% |
| Accurate 2495 | <<locked>> | 96% | 26,774 psi | 51% | 2047 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 82% | 33,373 psi | 63% | 2001 fps | 95.1% |
| Accurate LT-32 | <<locked>> | 90% | 43,047 psi | 81% | 2162 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 32,343 psi | 61% | 2064 fps | 99.9% |
| ADI AR 2219 | 22.8 gr | 86% | 34,693 psi | 66% | 2139 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 84% | 24,192 psi | 46% | 1936 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 26,861 psi | 51% | 1969 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 33,620 psi | 64% | 2054 fps | 98.5% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 33,489 psi | 63% | 2034 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 90% | 35,969 psi | 68% | 2162 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 92% | 38,392 psi | 73% | 2215 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 82% | 36,840 psi | 70% | 2073 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,771 psi | 43% | 1217 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 33,199 psi | 63% | 2162 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 29,399 psi | 56% | 1969 fps | 97.6% |
| IMR 4227 | <<locked>> | 80% | 39,871 psi | 75% | 2113 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 41,930 psi | 79% | 2260 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 98% | 44,092 psi | 83% | 2290 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 38,899 psi | 73% | 2083 fps | 100% |
| Norma 200 | 20.1 gr | 80% | 30,255 psi | 57% | 2034 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,394 psi | 42% | 1243 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,102 psi | 74% | 2139 fps | 99.9% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 42,699 psi | 81% | 2264 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 98% | 39,668 psi | 75% | 2211 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 90% | 41,930 psi | 79% | 2260 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,361 psi | 69% | 1926 fps | 100% |
| SNPE Vectan SP 10 | 24.7 gr | 90% | 39,523 psi | 75% | 2231 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 31,357 psi | 59% | 2044 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 39,769 psi | 75% | 2152 fps | 95.5% |
| Somchem S335 | <<locked>> | 96% | 35,694 psi | 67% | 2113 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 32,576 psi | 62% | 2034 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,092 psi | 49% | 1900 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 90% | 30,574 psi | 58% | 2005 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 96% | 29,834 psi | 56% | 2070 fps | 95.8% |
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 37 powders for 7 x 50 R loaded with the .284 | 140gr | Swift A-Frame. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,362 fps; across all powders the maximum-charge window runs from 1,365 fps to 2,362 fps. Accurate 2015 gives the best case fill at 100 %, and 37 of the 37 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 140.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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, Norma 200 rank at the top here: for 7 x 50 R with the .284 | 140gr | Swift A-Frame 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.