Load Specifications
Load data in caliber .33 Win. with .338 | 220gr | Peregrine Bushmaster (VRG-3) bullet and 49 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 BL-C2 and Lovex D073.6.
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>> | 88% | 39,682 psi | 90% | 2198 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 37,724 psi | 85% | 2192 fps | 98.3% |
| Accurate 2495 | <<locked>> | 96% | 39,450 psi | 89% | 2264 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 37,724 psi | 85% | 2231 fps | 98% |
| Accurate 4064 | <<locked>> | 98% | 39,436 psi | 89% | 2287 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 40,016 psi | 90% | 2244 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 39,001 psi | 88% | 2208 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 90% | 38,856 psi | 88% | 2257 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 38,870 psi | 88% | 2277 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 37,521 psi | 85% | 2238 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 37,695 psi | 85% | 2172 fps | 100% |
| Bofors RP3 | <<locked>> | 98% | 39,160 psi | 89% | 2283 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 39,247 psi | 89% | 2172 fps | 97.1% |
| Hodgdon BL-C2 | <<locked>> | 90% | 38,595 psi | 87% | 2264 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 84% | 38,856 psi | 88% | 2224 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 84% | 39,305 psi | 89% | 2238 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 90% | 38,899 psi | 88% | 2241 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 39,784 psi | 90% | 2297 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,996 psi | 75% | 1404 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 39,668 psi | 90% | 2293 fps | 99.9% |
| IMR 4198 | <<locked>> | 82% | 39,465 psi | 89% | 2156 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 39,001 psi | 88% | 2208 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 84% | 37,362 psi | 84% | 2188 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 92% | 38,522 psi | 87% | 2257 fps | 98.2% |
| Lovex S062 | <<locked>> | 94% | 38,087 psi | 86% | 2215 fps | 96.4% |
| Norma 201 | <<locked>> | 90% | 37,855 psi | 86% | 2195 fps | 96.3% |
| Norma 202 | <<locked>> | 90% | 37,753 psi | 85% | 2211 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,677 psi | 74% | 1434 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 38,653 psi | 87% | 2205 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 38,421 psi | 87% | 2303 fps | 97.2% |
| Rottweil R 901 | <<locked>> | 88% | 39,030 psi | 88% | 2198 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 92% | 38,101 psi | 86% | 2192 fps | 96.3% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 38,798 psi | 88% | 2267 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 38,522 psi | 87% | 2257 fps | 98.2% |
| Shooters World Precision | <<locked>> | 94% | 38,087 psi | 86% | 2215 fps | 96.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 38,682 psi | 87% | 2169 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 38,566 psi | 87% | 2182 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 38,072 psi | 86% | 2136 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 39,363 psi | 89% | 2175 fps | 99.4% |
| Somchem S321 | <<locked>> | 86% | 38,812 psi | 88% | 2231 fps | 96.8% |
| Somchem S335 | <<locked>> | 90% | 39,465 psi | 89% | 2178 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 84% | 38,580 psi | 87% | 2139 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 37,826 psi | 86% | 2142 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 94% | 38,566 psi | 87% | 2231 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 38,029 psi | 86% | 2198 fps | 98.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 39,073 psi | 88% | 2231 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 88% | 38,812 psi | 88% | 2205 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 94% | 38,841 psi | 88% | 2228 fps | 98.6% |
| Winchester 748 | <<locked>> | 90% | 39,639 psi | 90% | 2277 fps | 97.6% |
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% | 30,748 psi | 70% | 2037 fps | 99% |
| Accurate 2460 | <<locked>> | 80% | 32,779 psi | 74% | 2100 fps | 97.1% |
| Accurate 2495 | <<locked>> | 80% | 22,742 psi | 51% | 1919 fps | 96.9% |
| Accurate 2520 | <<locked>> | 80% | 28,311 psi | 64% | 2041 fps | 95% |
| Accurate 4064 | <<locked>> | 86% | 26,440 psi | 60% | 2024 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 37,434 psi | 85% | 2198 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 34,287 psi | 78% | 2119 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 28,268 psi | 64% | 2054 fps | 99.9% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 36,289 psi | 82% | 2228 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 35,172 psi | 80% | 2192 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,505 psi | 80% | 2133 fps | 100% |
| Bofors RP3 | <<locked>> | 96% | 36,579 psi | 83% | 2238 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 32,677 psi | 74% | 2044 fps | 95.1% |
| Hodgdon BL-C2 | 40.7 gr | 86% | 33,620 psi | 76% | 2169 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 34,214 psi | 77% | 2139 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 34,272 psi | 77% | 2146 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 88% | 36,709 psi | 83% | 2198 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 37,405 psi | 85% | 2251 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,279 psi | 55% | 1250 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 26,861 psi | 61% | 2028 fps | 97.1% |
| IMR 4198 | <<locked>> | 80% | 37,130 psi | 84% | 2116 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 34,287 psi | 78% | 2119 fps | 95% |
| Lovex D073.5 | <<locked>> | 80% | 32,474 psi | 73% | 2093 fps | 95.6% |
| Lovex D073.6 | 38.4 gr | 84% | 29,109 psi | 66% | 2070 fps | 95.3% |
| Lovex S062 | <<locked>> | 90% | 33,707 psi | 76% | 2129 fps | 95% |
| Norma 201 | <<locked>> | 88% | 35,491 psi | 80% | 2149 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 27,238 psi | 62% | 1995 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,149 psi | 55% | 1280 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,910 psi | 77% | 2113 fps | 96.5% |
| ReloadSwiss RS 60 | 43.8 gr | 94% | 33,939 psi | 77% | 2208 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 30,545 psi | 69% | 2031 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 90% | 35,694 psi | 81% | 2146 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 98% | 36,245 psi | 82% | 2221 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 29,109 psi | 66% | 2070 fps | 95.3% |
| Shooters World Precision | <<locked>> | 90% | 33,707 psi | 76% | 2129 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 35,926 psi | 81% | 2119 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,245 psi | 82% | 2139 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 29,762 psi | 67% | 1975 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 25,454 psi | 58% | 1893 fps | 95.5% |
| Somchem S321 | <<locked>> | 82% | 33,895 psi | 77% | 2139 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 28,848 psi | 65% | 1975 fps | 96.8% |
| Vihtavuori N130 | <<locked>> | 80% | 34,011 psi | 77% | 2060 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 29,573 psi | 67% | 1985 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 24,555 psi | 56% | 1942 fps | 97.3% |
| Vihtavuori N140 | <<locked>> | 82% | 27,630 psi | 62% | 1988 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 96% | 34,185 psi | 77% | 2139 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 84% | 33,997 psi | 77% | 2113 fps | 95% |
| Vihtavuori N540 | <<locked>> | 84% | 28,181 psi | 64% | 2014 fps | 95.4% |
| Winchester 748 | <<locked>> | 84% | 32,474 psi | 73% | 2136 fps | 95.4% |
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 49 powders for .33 Win. loaded with the .338 | 220gr | Peregrine Bushmaster (VRG-3). ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,303 fps; across all powders the maximum-charge window runs from 1,404 fps to 2,303 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 49 of the 49 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 220.0 gr projectile in 0.338" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Rottweil R 903 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 BL-C2, Lovex D073.6 rank at the top here: for .33 Win. with the .338 | 220gr | Peregrine Bushmaster (VRG-3) 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.