Load Specifications
Load data in caliber .33 Nosler with .338 | 300gr | Woodleigh RN SN bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Alliant Reloder-26 and Vihtavuori N560.
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 3100 | <<locked>> | 96% | 55,071 psi | 85% | 2395 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,174 psi | 88% | 2421 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 56,478 psi | 87% | 2533 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 96% | 57,246 psi | 88% | 2536 fps | 99% |
| ADI AR 2208 | <<locked>> | 84% | 58,421 psi | 90% | 2375 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,551 psi | 89% | 2474 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 96% | 55,100 psi | 85% | 2480 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,977 psi | 71% | 2346 fps | 98.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,872 psi | 63% | 2320 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 57,754 psi | 89% | 2470 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,376 psi | 87% | 2356 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,899 psi | 89% | 2464 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,201 psi | 85% | 2431 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,000 psi | 88% | 2464 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 58,740 psi | 90% | 2526 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,854 psi | 86% | 2444 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,605 psi | 79% | 2457 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 56,246 psi | 87% | 2533 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 57,116 psi | 88% | 2451 fps | 97.4% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,334 psi | 88% | 2510 fps | 99.9% |
| Bofors RP3 | <<locked>> | 82% | 57,406 psi | 88% | 2372 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,529 psi | 73% | 2411 fps | 98.9% |
| Bofors RP5 | <<locked>> | 98% | 58,740 psi | 90% | 2526 fps | 100% |
| Bofors RP7 | <<locked>> | 86% | 56,173 psi | 86% | 2375 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,676 psi | 78% | 2421 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 82% | 57,479 psi | 88% | 2392 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,085 psi | 85% | 2425 fps | 100% |
| Hodgdon H4350 | <<locked>> | 86% | 57,972 psi | 89% | 2431 fps | 100% |
| Hodgdon H4831 | <<locked>> | 94% | 55,361 psi | 85% | 2431 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,827 psi | 89% | 2461 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,102 psi | 89% | 2395 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,531 psi | 78% | 2516 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 55,143 psi | 85% | 2461 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,043 psi | 57% | 1447 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,146 psi | 89% | 2359 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,522 psi | 88% | 2411 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,841 psi | 89% | 2395 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 57,217 psi | 88% | 2411 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,449 psi | 87% | 2411 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 98% | 56,666 psi | 87% | 2513 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 36,521 psi | 56% | 2238 fps | 96% |
| Lovex S062 | <<locked>> | 82% | 58,450 psi | 90% | 2349 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,204 psi | 90% | 2392 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,202 psi | 86% | 2392 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,518 psi | 81% | 2365 fps | 100% |
| Norma 204 | <<locked>> | 90% | 58,552 psi | 90% | 2464 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 36,390 psi | 56% | 2257 fps | 98.3% |
| Norma MRP | <<locked>> | 96% | 58,494 psi | 90% | 2546 fps | 100% |
| Norma URP | <<locked>> | 88% | 55,448 psi | 85% | 2405 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,188 psi | 88% | 2530 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 90% | 57,812 psi | 89% | 2461 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,230 psi | 85% | 2474 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,869 psi | 58% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,000 psi | 88% | 2382 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 58,697 psi | 90% | 2464 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,029 psi | 88% | 2444 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,027 psi | 85% | 2470 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,676 psi | 78% | 2516 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 45,440 psi | 70% | 2418 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 84% | 57,522 psi | 88% | 2369 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,448 psi | 85% | 2402 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 94% | 56,623 psi | 87% | 2457 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 86% | 56,173 psi | 86% | 2375 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,204 psi | 90% | 2392 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,450 psi | 90% | 2349 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,202 psi | 86% | 2392 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,303 psi | 85% | 2379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,508 psi | 88% | 2251 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,537 psi | 89% | 2356 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,159 psi | 86% | 2454 fps | 99.9% |
| Somchem S355 | <<locked>> | 84% | 57,159 psi | 88% | 2362 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,985 psi | 88% | 2402 fps | 99% |
| Somchem S365 | <<locked>> | 90% | 55,579 psi | 86% | 2405 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,014 psi | 88% | 2431 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 58,392 psi | 90% | 2339 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,493 psi | 88% | 2398 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,478 psi | 87% | 2415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 56,420 psi | 87% | 2405 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 58,407 psi | 90% | 2467 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 58,407 psi | 90% | 2546 fps | 99.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,838 psi | 83% | 2477 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 46,992 psi | 72% | 2425 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,579 psi | 87% | 2365 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,274 psi | 85% | 2428 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,550 psi | 87% | 2566 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,942 psi | 88% | 2431 fps | 99.9% |
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 3100 | <<locked>> | 80% | 32,518 psi | 50% | 2041 fps | 98.1% |
| Accurate 4350 | <<locked>> | 80% | 43,758 psi | 67% | 2244 fps | 100% |
| Accurate High Country | 63.4 gr | 80% | 34,911 psi | 54% | 2175 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 86% | 40,625 psi | 63% | 2280 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,924 psi | 80% | 2297 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,506 psi | 56% | 2142 fps | 96.8% |
| ADI AR 2213 | <<locked>> | 84% | 37,159 psi | 57% | 2182 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 92% | 35,563 psi | 55% | 2149 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 90% | 29,878 psi | 46% | 2073 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,927 psi | 57% | 2146 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,011 psi | 82% | 2313 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,018 psi | 65% | 2247 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,254 psi | 74% | 2346 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,593 psi | 56% | 2142 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 32,329 psi | 50% | 2093 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,299 psi | 48% | 2067 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,267 psi | 42% | 1991 fps | 96.7% |
| Alliant Reloder-26 | 65.3 gr | 80% | 33,605 psi | 52% | 2178 fps | 99.5% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 47,659 psi | 73% | 2310 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 32,227 psi | 50% | 2090 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 53,664 psi | 83% | 2326 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 34,214 psi | 53% | 2169 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 32,329 psi | 50% | 2093 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 46,876 psi | 72% | 2244 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 34,084 psi | 52% | 2119 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 53,824 psi | 83% | 2349 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,440 psi | 70% | 2287 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,979 psi | 74% | 2293 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 84% | 39,610 psi | 61% | 2188 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 84% | 38,943 psi | 60% | 2175 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,624 psi | 61% | 2152 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 32,227 psi | 50% | 2156 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 44,483 psi | 68% | 2310 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,789 psi | 43% | 1293 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,621 psi | 84% | 2320 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,192 psi | 65% | 2192 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,211 psi | 74% | 2267 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 41,742 psi | 64% | 2201 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 39,117 psi | 60% | 2142 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 84% | 35,723 psi | 55% | 2165 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 98% | 34,272 psi | 53% | 2188 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 54,984 psi | 85% | 2310 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,788 psi | 70% | 2224 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 43,976 psi | 68% | 2218 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 28,123 psi | 43% | 1942 fps | 96.6% |
| Norma 204 | <<locked>> | 80% | 42,090 psi | 65% | 2224 fps | 98.1% |
| Norma 217 | <<locked>> | 94% | 30,110 psi | 46% | 2113 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 33,692 psi | 52% | 2149 fps | 97.5% |
| Norma URP | <<locked>> | 80% | 42,975 psi | 66% | 2231 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 35,056 psi | 54% | 2165 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 41,800 psi | 64% | 2234 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 84% | 31,227 psi | 48% | 2070 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 44% | 1325 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,447 psi | 82% | 2339 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,213 psi | 79% | 2375 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,497 psi | 67% | 2264 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,626 psi | 64% | 2277 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 29,138 psi | 45% | 2080 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 39,378 psi | 61% | 2306 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 50,662 psi | 78% | 2287 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 37,985 psi | 58% | 2126 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 35,824 psi | 55% | 2129 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 46,876 psi | 72% | 2244 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,788 psi | 70% | 2224 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 54,984 psi | 85% | 2310 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,976 psi | 68% | 2218 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,996 psi | 80% | 2339 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,155 psi | 79% | 2182 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,672 psi | 69% | 2182 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,505 psi | 55% | 2126 fps | 96.7% |
| Somchem S355 | <<locked>> | 80% | 50,749 psi | 78% | 2283 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 38,406 psi | 59% | 2116 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 39,784 psi | 61% | 2195 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,332 psi | 56% | 2113 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 80% | 48,399 psi | 74% | 2218 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,469 psi | 68% | 2228 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 31,502 psi | 48% | 2014 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 43,758 psi | 67% | 2231 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 35,027 psi | 54% | 2126 fps | 99.9% |
| Vihtavuori N560 | 66.6 gr | 84% | 38,986 psi | 60% | 2244 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 88% | 36,187 psi | 56% | 2185 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 96% | 41,002 psi | 63% | 2320 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,221 psi | 66% | 2195 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,440 psi | 70% | 2287 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,673 psi | 43% | 2087 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 33,156 psi | 51% | 2054 fps | 95.7% |
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 86 powders for .33 Nosler loaded with the .338 | 300gr | Woodleigh RN SN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,566 fps; across all powders the maximum-charge window runs from 1,447 fps to 2,566 fps. ADI AR 2217 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.338" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Accurate High Country, Alliant Reloder-26, Vihtavuori N560 rank at the top here: for .33 Nosler with the .338 | 300gr | Woodleigh RN 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.