Load Specifications
Load data in caliber 7 x 33 Sako with .284 | 100gr | H&N RN HS bullet and 8 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N110, SNPE Vectan BA6 1/2 and ReloadSwiss RS 14.
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 |
|---|---|---|---|---|---|---|
| ADI AR 2205 | <<locked>> | 92% | 36,738 psi | 90% | 2116 fps | 96.8% |
| Hodgdon LilGun | <<locked>> | 88% | 35,273 psi | 87% | 2277 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 22,902 psi | 56% | 1342 fps | 100% |
| Lovex S040 | <<locked>> | 84% | 35,824 psi | 88% | 2116 fps | 99.6% |
| Lovex S053ᴾ | <<locked>> | 100% | 32,735 psi | 81% | 2146 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 22,263 psi | 55% | 1385 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 30,429 psi | 75% | 2041 fps | 100% |
| Vihtavuori N110 | <<locked>> | 98% | 36,608 psi | 90% | 2198 fps | 100% |
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 |
|---|---|---|---|---|---|---|
| ADI AR 2205 | <<locked>> | 86% | 30,792 psi | 76% | 2005 fps | 95% |
| Hodgdon LilGun | <<locked>> | 80% | 26,701 psi | 66% | 2113 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 16,215 psi | 40% | 1194 fps | 100% |
| Lovex S040 | <<locked>> | 80% | 31,604 psi | 78% | 2041 fps | 99% |
| Lovex S053 | <<locked>> | 98% | 30,835 psi | 76% | 2110 fps | 95.2% |
| ReloadSwiss RS 14 | 4.5 gr | 80% | 15,461 psi | 38% | 1224 fps | 100% |
| SNPE Vectan BA6 1/2 | 10.8 gr | 80% | 17,593 psi | 43% | 1716 fps | 96.4% |
| Vihtavuori N110 | 11.3 gr | 80% | 21,147 psi | 52% | 1873 fps | 96.7% |
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 8 powders for 7 x 33 Sako loaded with the .284 | 100gr | H&N RN HS. Hodgdon LilGun delivers the highest muzzle velocity at 2,277 fps; across all powders the maximum-charge window runs from 1,342 fps to 2,277 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 8 of the 8 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, Lovex S053, ReloadSwiss RS 14 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. Vihtavuori N110, SNPE Vectan BA6 1/2, ReloadSwiss RS 14 rank at the top here: for 7 x 33 Sako with the .284 | 100gr | H&N RN HS 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.