Load Specifications
Load data in caliber .33 Win. with .338 | 225gr | Woodleigh PP SN bullet and 51 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 IMR 3031.
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% | 39,001 psi | 88% | 2172 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 39,479 psi | 89% | 2208 fps | 99.1% |
| Accurate 2495 | <<locked>> | 92% | 39,682 psi | 90% | 2247 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 37,971 psi | 86% | 2231 fps | 98.6% |
| Accurate 2520 | <<locked>> | 86% | 37,971 psi | 86% | 2231 fps | 98.6% |
| Accurate 4064 | <<locked>> | 94% | 39,566 psi | 89% | 2270 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 37,840 psi | 86% | 2182 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 86% | 38,218 psi | 86% | 2231 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 39,552 psi | 89% | 2264 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 39,842 psi | 90% | 2322 fps | 96% |
| Bofors RP3 | <<locked>> | 94% | 38,870 psi | 88% | 2266 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 82% | 38,072 psi | 86% | 2142 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 86% | 37,797 psi | 85% | 2238 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 84% | 40,030 psi | 90% | 2232 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 86% | 38,392 psi | 87% | 2221 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 38,754 psi | 88% | 2274 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,403 psi | 78% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 38,841 psi | 88% | 2211 fps | 96.3% |
| IMR 3031 | <<locked>> | 90% | 37,869 psi | 86% | 2250 fps | 99.9% |
| IMR 4895 | <<locked>> | 90% | 38,856 psi | 88% | 2258 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 84% | 37,840 psi | 86% | 2180 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 82% | 39,276 psi | 89% | 2209 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 88% | 37,971 psi | 86% | 2232 fps | 98.6% |
| Lovex S060 | <<locked>> | 86% | 39,653 psi | 90% | 2167 fps | 95.9% |
| Lovex S062 | <<locked>> | 90% | 37,710 psi | 85% | 2196 fps | 97% |
| Norma 201 | <<locked>> | 88% | 39,697 psi | 90% | 2216 fps | 97.4% |
| Norma 202 | <<locked>> | 88% | 39,494 psi | 89% | 2231 fps | 99.3% |
| Norma 203B | <<locked>> | 92% | 39,885 psi | 90% | 2268 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,345 psi | 78% | 1448 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 39,987 psi | 90% | 2216 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 39,885 psi | 90% | 2337 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 84% | 38,899 psi | 88% | 2183 fps | 99% |
| Rottweil R 902 | <<locked>> | 90% | 39,871 psi | 90% | 2212 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 96% | 38,551 psi | 87% | 2251 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 37,971 psi | 86% | 2232 fps | 98.6% |
| Shooters World Precision | <<locked>> | 90% | 37,710 psi | 85% | 2196 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 38,899 psi | 88% | 2224 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 39,668 psi | 90% | 2153 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 38,421 psi | 87% | 2150 fps | 99.6% |
| Somchem S321 | <<locked>> | 82% | 37,768 psi | 85% | 2203 fps | 97.2% |
| Somchem S335 | <<locked>> | 86% | 38,725 psi | 88% | 2156 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 37,594 psi | 85% | 2218 fps | 96% |
| Vihtavuori N130 | <<locked>> | 82% | 39,117 psi | 88% | 2136 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 38,957 psi | 88% | 2151 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 38,072 psi | 86% | 2208 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 39,175 psi | 89% | 2208 fps | 99.4% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 38,508 psi | 87% | 2214 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 84% | 39,682 psi | 90% | 2224 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 90% | 38,812 psi | 88% | 2227 fps | 99.1% |
| Winchester 748 | <<locked>> | 84% | 39,088 psi | 88% | 2261 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 38,885 psi | 88% | 2244 fps | 96.4% |
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% | 34,389 psi | 78% | 2093 fps | 99.8% |
| Accurate 2460 | <<locked>> | 80% | 36,869 psi | 83% | 2165 fps | 98.6% |
| Accurate 2495 | <<locked>> | 80% | 26,818 psi | 61% | 1998 fps | 98.8% |
| Accurate 2520 | <<locked>> | 80% | 31,024 psi | 70% | 2096 fps | 96.7% |
| Accurate 2520 | <<locked>> | 80% | 31,024 psi | 70% | 2096 fps | 96.7% |
| Accurate 4064 | <<locked>> | 80% | 25,454 psi | 58% | 1975 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 33,344 psi | 75% | 2090 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 31,531 psi | 71% | 2110 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 34,853 psi | 79% | 2175 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 37,318 psi | 84% | 2271 fps | 95% |
| Bofors RP3 | <<locked>> | 90% | 34,055 psi | 77% | 2175 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,911 psi | 81% | 2101 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 30,835 psi | 70% | 2096 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 35,012 psi | 79% | 2142 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 84% | 35,868 psi | 81% | 2173 fps | 95.5% |
| Hodgdon LEVERevolution | 42.1 gr | 88% | 34,287 psi | 78% | 2182 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,860 psi | 56% | 1259 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 36,361 psi | 82% | 2165 fps | 95.5% |
| IMR 3031 | 35 gr | 80% | 27,804 psi | 63% | 2038 fps | 98.1% |
| IMR 4895 | <<locked>> | 88% | 36,593 psi | 83% | 2215 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 33,344 psi | 75% | 2091 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 80% | 36,724 psi | 83% | 2164 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 29,109 psi | 66% | 2054 fps | 96% |
| Lovex S060 | <<locked>> | 84% | 37,159 psi | 84% | 2121 fps | 95.1% |
| Lovex S062 | <<locked>> | 86% | 33,402 psi | 76% | 2112 fps | 95.6% |
| Norma 201 | <<locked>> | 82% | 32,880 psi | 74% | 2085 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 30,632 psi | 69% | 2059 fps | 97.3% |
| Norma 203B | <<locked>> | 90% | 37,304 psi | 84% | 2221 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,077 psi | 57% | 1292 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,623 psi | 85% | 2175 fps | 98.1% |
| ReloadSwiss RS 60 | 43.2 gr | 88% | 31,038 psi | 70% | 2138 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 34,519 psi | 78% | 2100 fps | 98.1% |
| Rottweil R 902 | <<locked>> | 84% | 33,301 psi | 75% | 2087 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 92% | 33,968 psi | 77% | 2166 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,109 psi | 66% | 2054 fps | 96% |
| Shooters World Precision | <<locked>> | 86% | 33,402 psi | 76% | 2112 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 36,680 psi | 83% | 2182 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,895 psi | 74% | 2029 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,672 psi | 60% | 1914 fps | 96.8% |
| Somchem S321 | <<locked>> | 80% | 35,317 psi | 80% | 2157 fps | 96.5% |
| Somchem S335 | <<locked>> | 80% | 32,184 psi | 73% | 2034 fps | 98.4% |
| Somchem S355 | <<locked>> | 92% | 35,418 psi | 80% | 2175 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 36,782 psi | 83% | 2097 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 30,792 psi | 70% | 2000 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 27,775 psi | 63% | 2008 fps | 98.9% |
| Vihtavuori N140 | <<locked>> | 80% | 28,660 psi | 65% | 2000 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 94% | 31,908 psi | 72% | 2089 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 34,780 psi | 79% | 2132 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 28,369 psi | 64% | 2014 fps | 96.3% |
| Winchester 748 | <<locked>> | 80% | 34,200 psi | 77% | 2166 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,172 psi | 82% | 2192 fps | 95.6% |
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 51 powders for .33 Win. loaded with the .338 | 225gr | Woodleigh PP SN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,337 fps; across all powders the maximum-charge window runs from 1,414 fps to 2,337 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 78–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N150 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, IMR 3031 rank at the top here: for .33 Win. with the .338 | 225gr | Woodleigh PP SN 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.