Load Specifications
Load data in caliber 7 x 50 R with .284 | 130gr | Speer Boat-Tail bullet and 32 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 and Hodgdon H322.
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% | 46,746 psi | 88% | 2346 fps | 99.6% |
| Accurate 2015ᴾ | <<locked>> | 100% | 42,003 psi | 79% | 2359 fps | 98.5% |
| Accurate 2460ᴾ | <<locked>> | 100% | 46,325 psi | 88% | 2441 fps | 96.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 30,168 psi | 57% | 2224 fps | 96% |
| Accurate LT-30 | <<locked>> | 94% | 47,674 psi | 90% | 2349 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 92% | 46,180 psi | 87% | 2402 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 47,224 psi | 89% | 2467 fps | 97.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 39,001 psi | 74% | 2382 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 98% | 45,672 psi | 86% | 2431 fps | 99.7% |
| Alliant Reloder-7 | <<locked>> | 90% | 45,092 psi | 85% | 2359 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 45,498 psi | 86% | 2343 fps | 98% |
| Hodgdon H322 | <<locked>> | 98% | 45,585 psi | 86% | 2441 fps | 97.6% |
| Hodgdon H335 | <<locked>> | 98% | 46,151 psi | 87% | 2454 fps | 96.7% |
| Hodgdon H4198 | <<locked>> | 90% | 46,470 psi | 88% | 2343 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,879 psi | 58% | 1440 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 36,811 psi | 70% | 2343 fps | 96.3% |
| IMR 4198 | <<locked>> | 96% | 45,788 psi | 86% | 2382 fps | 99.9% |
| IMR 4227 | <<locked>> | 86% | 47,137 psi | 89% | 2333 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 47,645 psi | 90% | 2457 fps | 96.1% |
| Lovex S053 | <<locked>> | 86% | 45,963 psi | 87% | 2297 fps | 100% |
| Norma 200 | <<locked>> | 94% | 46,137 psi | 87% | 2421 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,705 psi | 58% | 1476 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 46,137 psi | 87% | 2359 fps | 100% |
| Shooters World AR Plus | <<locked>> | 94% | 47,645 psi | 90% | 2457 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 47,152 psi | 89% | 2178 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 47,094 psi | 89% | 2464 fps | 96.9% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 47,268 psi | 89% | 2438 fps | 98.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 39,900 psi | 75% | 2293 fps | 96.2% |
| Vihtavuori N120 | <<locked>> | 92% | 46,383 psi | 88% | 2362 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 47,065 psi | 89% | 2388 fps | 99.6% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 40,785 psi | 77% | 2300 fps | 98% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 33,214 psi | 63% | 2244 fps | 96.5% |
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% | 36,303 psi | 69% | 2175 fps | 98.1% |
| Accurate 2015 | <<locked>> | 90% | 30,777 psi | 58% | 2149 fps | 95.6% |
| Accurate 2460 | <<locked>> | 96% | 40,567 psi | 77% | 2349 fps | 95.1% |
| Accurate 2495 | <<locked>> | 98% | 27,992 psi | 53% | 2175 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 84% | 35,418 psi | 67% | 2142 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 31,691 psi | 60% | 2156 fps | 99.7% |
| ADI AR 2219 | 24.6 gr | 88% | 36,579 psi | 69% | 2280 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 86% | 25,454 psi | 48% | 2067 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 26,310 psi | 50% | 2051 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 33,315 psi | 63% | 2152 fps | 98% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 35,085 psi | 66% | 2165 fps | 95.5% |
| Hodgdon H322 | 24.9 gr | 92% | 37,826 psi | 71% | 2306 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 94% | 40,756 psi | 77% | 2365 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 82% | 36,883 psi | 70% | 2178 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,771 psi | 43% | 1289 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 34,751 psi | 66% | 2300 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 29,066 psi | 55% | 2060 fps | 97% |
| IMR 4227 | <<locked>> | 80% | 39,363 psi | 74% | 2215 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 92% | 44,802 psi | 85% | 2415 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 38,522 psi | 73% | 2185 fps | 100% |
| Norma 200 | 21.2 gr | 80% | 29,863 psi | 56% | 2126 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,365 psi | 42% | 1316 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 38,232 psi | 72% | 2234 fps | 99.8% |
| Shooters World AR Plus | <<locked>> | 92% | 44,802 psi | 85% | 2415 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,347 psi | 69% | 2031 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 41,568 psi | 79% | 2375 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 32,837 psi | 62% | 2178 fps | 95.2% |
| Somchem S335 | <<locked>> | 98% | 37,217 psi | 70% | 2244 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 31,937 psi | 60% | 2129 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 27,456 psi | 52% | 2028 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 92% | 32,053 psi | 61% | 2136 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 98% | 31,357 psi | 59% | 2205 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 57 powders for 7 x 50 R loaded with the .284 | 130gr | Speer Boat-Tail. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,516 fps; across all powders the maximum-charge window runs from 1,440 fps to 2,516 fps. Accurate 2015 gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.284" calls for a 1:13.5 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. ADI AR 2219, Norma 200, Hodgdon H322 rank at the top here: for 7 x 50 R with the .284 | 130gr | Speer Boat-Tail they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2230, Accurate 2520, 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.