Load Specifications
Load data in caliber .33 Win. with .338 | 225gr | Brenneke TOG bullet and 46 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Winchester 748 and Hodgdon BL-C2.
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>> | 86% | 39,349 psi | 89% | 2156 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 39,769 psi | 90% | 2192 fps | 98.9% |
| Accurate 2495 | <<locked>> | 94% | 39,624 psi | 90% | 2228 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 39,813 psi | 90% | 2231 fps | 98.6% |
| Accurate 4064 | <<locked>> | 96% | 39,349 psi | 89% | 2247 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,218 psi | 86% | 2162 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 88% | 38,363 psi | 87% | 2215 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 38,363 psi | 87% | 2234 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 39,668 psi | 90% | 2241 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 39,755 psi | 90% | 2169 fps | 100% |
| Bofors RP3 | <<locked>> | 96% | 38,682 psi | 87% | 2241 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 38,624 psi | 87% | 2129 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 88% | 38,014 psi | 86% | 2218 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 82% | 38,203 psi | 86% | 2178 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 82% | 38,812 psi | 88% | 2198 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 88% | 38,493 psi | 87% | 2198 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 39,059 psi | 88% | 2251 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,185 psi | 75% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 39,958 psi | 90% | 2205 fps | 96.1% |
| IMR 3031 | <<locked>> | 90% | 39,204 psi | 89% | 2251 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 38,218 psi | 86% | 2162 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 84% | 39,697 psi | 90% | 2195 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 90% | 38,058 psi | 86% | 2215 fps | 98.3% |
| Lovex S062 | <<locked>> | 94% | 40,030 psi | 90% | 2215 fps | 97.1% |
| Norma 201 | <<locked>> | 90% | 39,784 psi | 90% | 2195 fps | 97% |
| Norma 202 | <<locked>> | 90% | 39,871 psi | 90% | 2215 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,301 psi | 75% | 1417 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 38,101 psi | 86% | 2162 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 37,971 psi | 86% | 2267 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 86% | 38,943 psi | 88% | 2162 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 90% | 37,884 psi | 86% | 2152 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 98% | 38,624 psi | 87% | 2231 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 38,058 psi | 86% | 2215 fps | 98.3% |
| Shooters World Precision | <<locked>> | 94% | 40,030 psi | 90% | 2215 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 40,030 psi | 90% | 2136 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 38,725 psi | 88% | 2133 fps | 99.4% |
| Somchem S321 | <<locked>> | 84% | 38,159 psi | 86% | 2188 fps | 96.9% |
| Somchem S335 | <<locked>> | 88% | 39,102 psi | 88% | 2139 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 82% | 37,971 psi | 86% | 2096 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 39,711 psi | 90% | 2139 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 38,203 psi | 86% | 2192 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 37,608 psi | 85% | 2159 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 98% | 38,595 psi | 87% | 2188 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 86% | 37,985 psi | 86% | 2156 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 92% | 38,464 psi | 87% | 2192 fps | 98.7% |
| Winchester 748 | <<locked>> | 88% | 38,870 psi | 88% | 2231 fps | 97.7% |
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% | 32,503 psi | 73% | 2037 fps | 99.4% |
| Accurate 2460 | <<locked>> | 80% | 34,737 psi | 79% | 2103 fps | 97.8% |
| Accurate 2495 | <<locked>> | 80% | 25,034 psi | 57% | 1942 fps | 98% |
| Accurate 2520 | <<locked>> | 80% | 30,356 psi | 69% | 2051 fps | 96.1% |
| Accurate 4064 | <<locked>> | 82% | 25,396 psi | 57% | 1959 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 33,895 psi | 77% | 2080 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 29,805 psi | 67% | 2054 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 35,897 psi | 81% | 2185 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 34,954 psi | 79% | 2156 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,492 psi | 85% | 2133 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 33,881 psi | 77% | 2149 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,127 psi | 77% | 2044 fps | 95.9% |
| Hodgdon BL-C2 | 39.7 gr | 84% | 33,214 psi | 75% | 2126 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 35,781 psi | 81% | 2136 fps | 99% |
| Hodgdon H335 | <<locked>> | 80% | 36,129 psi | 82% | 2149 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 86% | 36,085 psi | 82% | 2156 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 36,738 psi | 83% | 2208 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,772 psi | 56% | 1240 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 37,579 psi | 85% | 2162 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 28,601 psi | 65% | 2037 fps | 98% |
| IMR 8208 XBR | <<locked>> | 82% | 33,895 psi | 77% | 2080 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 80% | 34,679 psi | 78% | 2103 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 82% | 29,196 psi | 66% | 2037 fps | 95.6% |
| Lovex S062 | <<locked>> | 88% | 33,518 psi | 76% | 2093 fps | 95.2% |
| Norma 201 | <<locked>> | 84% | 33,127 psi | 75% | 2067 fps | 95% |
| Norma 202 | <<locked>> | 80% | 29,037 psi | 66% | 2005 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,714 psi | 56% | 1266 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,752 psi | 81% | 2116 fps | 97.3% |
| ReloadSwiss RS 60 | 42.8 gr | 92% | 33,402 psi | 76% | 2165 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 32,706 psi | 74% | 2041 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 86% | 33,591 psi | 76% | 2070 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 96% | 36,143 psi | 82% | 2185 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 82% | 29,196 psi | 66% | 2037 fps | 95.6% |
| Shooters World Precision | <<locked>> | 88% | 33,518 psi | 76% | 2093 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,256 psi | 71% | 1972 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,280 psi | 57% | 1860 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 33,431 psi | 76% | 2096 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 30,647 psi | 69% | 1982 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 80% | 35,563 psi | 80% | 2054 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 31,009 psi | 70% | 1985 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 26,107 psi | 59% | 1949 fps | 98.1% |
| Vihtavuori N140 | <<locked>> | 80% | 27,514 psi | 62% | 1952 fps | 96% |
| Vihtavuori N150 | <<locked>> | 92% | 32,053 psi | 72% | 2067 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 82% | 33,576 psi | 76% | 2073 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 82% | 28,094 psi | 64% | 1982 fps | 95.6% |
| Winchester 748 | 38.1 gr | 82% | 32,227 psi | 73% | 2100 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 46 powders for .33 Win. loaded with the .338 | 225gr | Brenneke TOG. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,267 fps; across all powders the maximum-charge window runs from 1,385 fps to 2,267 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 46 of the 46 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 225.0 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 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, Winchester 748, Hodgdon BL-C2 rank at the top here: for .33 Win. with the .338 | 225gr | Brenneke TOG 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.