Load Specifications
Load data in caliber .33 Win. with .338 | 250gr | Rhino Solid Shank bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and Rottweil R 903.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 39,218 psi | 89% | 2024 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 39,798 psi | 90% | 2064 fps | 99.5% |
| Accurate 2495 | <<locked>> | 90% | 37,478 psi | 85% | 2060 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 37,536 psi | 85% | 2064 fps | 99% |
| Accurate 4064 | <<locked>> | 94% | 39,972 psi | 90% | 2123 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 38,493 psi | 87% | 2067 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 38,218 psi | 86% | 2037 fps | 97.5% |
| Alliant AR-Comp | <<locked>> | 86% | 38,493 psi | 87% | 2080 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 39,711 psi | 90% | 2116 fps | 97.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 38,508 psi | 87% | 2090 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 37,681 psi | 85% | 2133 fps | 96.1% |
| Bofors RP3 | <<locked>> | 94% | 39,015 psi | 88% | 2119 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 38,334 psi | 87% | 2001 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 38,087 psi | 86% | 2093 fps | 98.2% |
| Hodgdon CFE223 | <<locked>> | 84% | 39,334 psi | 89% | 2142 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 38,653 psi | 87% | 2077 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 39,044 psi | 88% | 2129 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,794 psi | 76% | 1306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 39,842 psi | 90% | 2080 fps | 97.2% |
| IMR 3031 | <<locked>> | 88% | 39,175 psi | 89% | 2116 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 38,653 psi | 87% | 2047 fps | 95.8% |
| IMR 4895 | <<locked>> | 90% | 39,334 psi | 89% | 2116 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 84% | 38,218 psi | 86% | 2037 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 82% | 39,523 psi | 89% | 2064 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 88% | 38,508 psi | 87% | 2090 fps | 99.1% |
| Lovex S060 | <<locked>> | 86% | 39,653 psi | 90% | 2021 fps | 96.6% |
| Lovex S062 | <<locked>> | 90% | 37,840 psi | 86% | 2051 fps | 97.6% |
| Norma 201 | <<locked>> | 88% | 39,929 psi | 90% | 2070 fps | 98% |
| Norma 202 | <<locked>> | 88% | 39,842 psi | 90% | 2083 fps | 99.6% |
| Norma 203B | <<locked>> | 92% | 39,958 psi | 90% | 2119 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 92% | 40,030 psi | 90% | 2129 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 39,305 psi | 89% | 2093 fps | 96.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 39,073 psi | 88% | 2034 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,982 psi | 77% | 1339 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 39,653 psi | 90% | 2162 fps | 96% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 37,797 psi | 85% | 2149 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 84% | 39,059 psi | 88% | 2034 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 88% | 38,000 psi | 86% | 2031 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 96% | 38,928 psi | 88% | 2110 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 38,508 psi | 87% | 2090 fps | 99.1% |
| Shooters World Precision | <<locked>> | 90% | 37,840 psi | 86% | 2051 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 38,754 psi | 88% | 2116 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 39,088 psi | 88% | 2080 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 39,726 psi | 90% | 2005 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 38,812 psi | 88% | 2008 fps | 99.8% |
| Somchem S321 | <<locked>> | 82% | 37,971 psi | 86% | 2057 fps | 97.8% |
| Somchem S335 | <<locked>> | 86% | 38,812 psi | 88% | 2008 fps | 99.8% |
| Somchem S341 | <<locked>> | 86% | 37,942 psi | 86% | 2051 fps | 96% |
| Somchem S355 | <<locked>> | 94% | 37,942 psi | 86% | 2077 fps | 96.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 32,692 psi | 74% | 2044 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 86% | 39,537 psi | 89% | 2008 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 38,566 psi | 87% | 2060 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 39,871 psi | 90% | 2067 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 96% | 38,667 psi | 87% | 2067 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 84% | 38,043 psi | 86% | 2034 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 90% | 38,450 psi | 87% | 2064 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 38,101 psi | 86% | 2051 fps | 96.1% |
| Winchester 748 | <<locked>> | 86% | 39,030 psi | 88% | 2106 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 38,290 psi | 87% | 2083 fps | 96.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 34,780 psi | 79% | 1952 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 37,202 psi | 84% | 2021 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 27,093 psi | 61% | 1870 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 32,547 psi | 74% | 1975 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 25,672 psi | 58% | 1850 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 84% | 36,071 psi | 82% | 2024 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 33,779 psi | 76% | 1959 fps | 96.3% |
| Alliant AR-Comp | <<locked>> | 80% | 31,966 psi | 72% | 1972 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 30,995 psi | 70% | 1955 fps | 95% |
| Alliant Reloder-15 | <<locked>> | 88% | 36,027 psi | 81% | 2044 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 94% | 35,360 psi | 80% | 2087 fps | 95.2% |
| Bofors RP3 | <<locked>> | 88% | 32,039 psi | 72% | 1991 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,940 psi | 81% | 1959 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 31,024 psi | 70% | 1962 fps | 96.2% |
| Hodgdon CFE223 | <<locked>> | 82% | 36,869 psi | 83% | 2096 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 82% | 33,924 psi | 77% | 1991 fps | 95.6% |
| Hodgdon LEVERevolution | 37.7 gr | 84% | 32,300 psi | 73% | 1998 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,034 psi | 57% | 1165 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 32,996 psi | 75% | 1955 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 30,414 psi | 69% | 1959 fps | 99.3% |
| IMR 4064 | <<locked>> | 88% | 36,434 psi | 82% | 2008 fps | 95.1% |
| IMR 4895 | <<locked>> | 86% | 34,722 psi | 78% | 2031 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 33,779 psi | 76% | 1959 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 80% | 36,985 psi | 84% | 2021 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 29,283 psi | 66% | 1923 fps | 96.8% |
| Lovex S060 | <<locked>> | 82% | 35,389 psi | 80% | 1946 fps | 95.3% |
| Lovex S062 | <<locked>> | 82% | 29,762 psi | 67% | 1896 fps | 95% |
| Norma 201 | <<locked>> | 80% | 31,183 psi | 70% | 1909 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 30,937 psi | 70% | 1926 fps | 98% |
| Norma 203B | <<locked>> | 88% | 35,317 psi | 80% | 2037 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 90% | 37,608 psi | 85% | 2087 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 36,883 psi | 83% | 2051 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 36,709 psi | 83% | 1991 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,048 psi | 57% | 1191 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 37,130 psi | 84% | 2116 fps | 95.2% |
| ReloadSwiss RS 60 | 38.8 gr | 86% | 29,428 psi | 67% | 1962 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 34,853 psi | 79% | 1962 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 31,662 psi | 72% | 1913 fps | 95.7% |
| Rottweil R 903 | 38.2 gr | 90% | 31,981 psi | 72% | 1985 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,283 psi | 66% | 1923 fps | 96.8% |
| Shooters World Precision | <<locked>> | 82% | 29,762 psi | 67% | 1896 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 36,434 psi | 82% | 2073 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 34,664 psi | 78% | 1998 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,156 psi | 75% | 1893 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,890 psi | 61% | 1788 fps | 97.6% |
| Somchem S321 | <<locked>> | 80% | 35,592 psi | 80% | 2018 fps | 97.2% |
| Somchem S335 | <<locked>> | 80% | 32,445 psi | 73% | 1900 fps | 98.9% |
| Somchem S341 | <<locked>> | 84% | 35,346 psi | 80% | 2005 fps | 95.1% |
| Somchem S355 | <<locked>> | 90% | 33,504 psi | 76% | 1995 fps | 95.4% |
| Somchem S365 | <<locked>> | 98% | 30,879 psi | 70% | 2005 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 33,011 psi | 75% | 1903 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 28,050 psi | 63% | 1877 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 80% | 29,254 psi | 66% | 1877 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 88% | 30,124 psi | 68% | 1913 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 33,286 psi | 75% | 1949 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 27,992 psi | 63% | 1867 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 35,781 psi | 81% | 2008 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 32,111 psi | 73% | 1978 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 33,692 psi | 76% | 1998 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 59 powders for .33 Win. loaded with the .338 | 250gr | Rhino Solid Shank. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,162 fps; across all powders the maximum-charge window runs from 1,306 fps to 2,162 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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. ReloadSwiss RS 60, Hodgdon LEVERevolution, Rottweil R 903 rank at the top here: for .33 Win. with the .338 | 250gr | Rhino Solid Shank 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.