Load Specifications
Load data in caliber .33 Win. with .338 | 250gr | Barnes Banded Solid bullet and 56 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 Bofors RP3.
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% | 38,667 psi | 87% | 2011 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 38,986 psi | 88% | 2044 fps | 99.3% |
| Accurate 2495 | <<locked>> | 92% | 39,349 psi | 89% | 2083 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 39,407 psi | 89% | 2090 fps | 99.2% |
| Accurate 4064 | <<locked>> | 94% | 39,204 psi | 89% | 2106 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 37,826 psi | 86% | 2047 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 86% | 40,030 psi | 90% | 2064 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 86% | 38,000 psi | 86% | 2067 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 39,030 psi | 88% | 2096 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 39,465 psi | 89% | 2156 fps | 96.5% |
| Bofors RP3 | <<locked>> | 94% | 38,363 psi | 87% | 2100 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 37,898 psi | 86% | 1985 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 88% | 40,030 psi | 90% | 2116 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 86% | 37,971 psi | 86% | 2057 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 38,479 psi | 87% | 2110 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,779 psi | 76% | 1299 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 39,160 psi | 89% | 2064 fps | 96.9% |
| IMR 3031 | <<locked>> | 88% | 38,653 psi | 87% | 2103 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 38,609 psi | 87% | 2096 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 86% | 40,030 psi | 90% | 2064 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 82% | 38,769 psi | 88% | 2044 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 88% | 37,753 psi | 85% | 2073 fps | 98.9% |
| Lovex S060 | <<locked>> | 86% | 39,291 psi | 89% | 2008 fps | 96.3% |
| Lovex S062 | <<locked>> | 92% | 39,711 psi | 90% | 2077 fps | 97.9% |
| Norma 201 | <<locked>> | 88% | 39,218 psi | 89% | 2051 fps | 97.8% |
| Norma 202 | <<locked>> | 88% | 39,059 psi | 88% | 2067 fps | 99.5% |
| Norma 203B | <<locked>> | 92% | 39,276 psi | 89% | 2100 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 92% | 39,508 psi | 89% | 2113 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 38,682 psi | 87% | 2073 fps | 96.2% |
| Ramshot X-Terminator | <<locked>> | 82% | 38,421 psi | 87% | 2018 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,649 psi | 76% | 1329 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 39,842 psi | 90% | 2057 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 39,537 psi | 89% | 2169 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 38,551 psi | 87% | 2021 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 90% | 39,566 psi | 89% | 2051 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 96% | 38,290 psi | 87% | 2093 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 37,753 psi | 85% | 2073 fps | 98.9% |
| Shooters World Precision | <<locked>> | 92% | 39,711 psi | 90% | 2077 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 38,247 psi | 86% | 2096 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 38,740 psi | 88% | 2067 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 39,276 psi | 89% | 1991 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 38,101 psi | 86% | 1991 fps | 99.7% |
| Somchem S321 | <<locked>> | 82% | 37,289 psi | 84% | 2041 fps | 97.6% |
| Somchem S335 | <<locked>> | 86% | 38,363 psi | 87% | 1995 fps | 99.7% |
| Somchem S341 | <<locked>> | 88% | 39,885 psi | 90% | 2077 fps | 96.4% |
| Somchem S355 | <<locked>> | 96% | 39,610 psi | 90% | 2096 fps | 97.1% |
| Vihtavuori N130 | <<locked>> | 82% | 39,537 psi | 89% | 1985 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 39,059 psi | 88% | 1995 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 37,768 psi | 85% | 2044 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 39,479 psi | 89% | 2054 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 96% | 38,087 psi | 86% | 2051 fps | 98% |
| Vihtavuori N530 | <<locked>> | 86% | 39,943 psi | 90% | 2060 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 90% | 37,811 psi | 85% | 2047 fps | 99.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 39,900 psi | 90% | 2073 fps | 96.5% |
| Winchester 748 | <<locked>> | 86% | 38,348 psi | 87% | 2090 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 37,695 psi | 85% | 2067 fps | 96.6% |
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% | 34,243 psi | 77% | 1939 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 36,506 psi | 83% | 2005 fps | 98.9% |
| Accurate 2495 | <<locked>> | 80% | 26,585 psi | 60% | 1854 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 32,097 psi | 73% | 1962 fps | 97.7% |
| Accurate 4064 | <<locked>> | 80% | 25,208 psi | 57% | 1834 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 84% | 35,389 psi | 80% | 2005 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 33,344 psi | 75% | 1942 fps | 96% |
| Alliant AR-Comp | <<locked>> | 80% | 31,459 psi | 71% | 1959 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 32,460 psi | 73% | 1978 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 36,999 psi | 84% | 2110 fps | 95.6% |
| Bofors RP3 | 37.6 gr | 88% | 31,415 psi | 71% | 1975 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,520 psi | 80% | 1946 fps | 97.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 30,632 psi | 69% | 1949 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 33,475 psi | 76% | 1975 fps | 95.3% |
| Hodgdon LEVERevolution | 38 gr | 86% | 33,852 psi | 77% | 2024 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,889 psi | 56% | 1155 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 34,577 psi | 78% | 1982 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 29,936 psi | 68% | 1942 fps | 99.1% |
| IMR 4895 | <<locked>> | 86% | 34,055 psi | 77% | 2014 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 33,344 psi | 75% | 1942 fps | 96% |
| Lovex D073.5 | <<locked>> | 80% | 36,274 psi | 82% | 2005 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 80% | 28,848 psi | 65% | 1906 fps | 96.6% |
| Lovex S060 | <<locked>> | 82% | 34,998 psi | 79% | 1932 fps | 95% |
| Lovex S062 | <<locked>> | 84% | 31,140 psi | 70% | 1919 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 30,748 psi | 70% | 1893 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 30,487 psi | 69% | 1913 fps | 97.8% |
| Norma 203B | <<locked>> | 88% | 34,635 psi | 78% | 2018 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 90% | 37,057 psi | 84% | 2070 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 36,274 psi | 82% | 2031 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 36,071 psi | 82% | 1975 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,903 psi | 56% | 1184 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,275 psi | 84% | 2014 fps | 98.5% |
| ReloadSwiss RS 60 | 39.1 gr | 88% | 30,893 psi | 70% | 1991 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 34,316 psi | 78% | 1946 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 31,212 psi | 71% | 1900 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 92% | 33,562 psi | 76% | 2008 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,848 psi | 65% | 1906 fps | 96.6% |
| Shooters World Precision | <<locked>> | 84% | 31,140 psi | 70% | 1919 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 35,882 psi | 81% | 2054 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 36,318 psi | 82% | 2024 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,692 psi | 74% | 1880 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,484 psi | 60% | 1775 fps | 97.3% |
| Somchem S321 | <<locked>> | 80% | 34,911 psi | 79% | 1998 fps | 96.9% |
| Somchem S335 | <<locked>> | 80% | 32,010 psi | 72% | 1886 fps | 98.7% |
| Somchem S341 | <<locked>> | 86% | 37,362 psi | 84% | 2034 fps | 95.6% |
| Somchem S355 | <<locked>> | 90% | 33,156 psi | 75% | 1982 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 37,217 psi | 84% | 1949 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,547 psi | 74% | 1886 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 27,543 psi | 62% | 1860 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 28,834 psi | 65% | 1864 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 88% | 29,530 psi | 67% | 1893 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 32,837 psi | 74% | 1932 fps | 96% |
| Vihtavuori N540 | <<locked>> | 80% | 27,615 psi | 62% | 1850 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 37,478 psi | 85% | 2031 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 31,488 psi | 71% | 1959 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 84% | 33,083 psi | 75% | 1982 fps | 95.1% |
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 78 powders for .33 Win. loaded with the .338 | 250gr | Barnes Banded Solid. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,169 fps; across all powders the maximum-charge window runs from 1,299 fps to 2,169 fps. Accurate 4350 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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, Bofors RP3 rank at the top here: for .33 Win. with the .338 | 250gr | Barnes Banded Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, Alliant Power Pro 2000-MR, Alliant Reloder-16 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.