Load Specifications
Load data in caliber .338 Norma Mag. with .338 | 272gr | SUS-TAC HPT bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Vihtavuori N560 and Norma MRP.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 54,172 psi | 85% | 2510 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,072 psi | 88% | 2539 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,449 psi | 88% | 2651 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 84% | 57,667 psi | 90% | 2500 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,681 psi | 89% | 2592 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 96% | 54,375 psi | 85% | 2598 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,440 psi | 71% | 2451 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,248 psi | 63% | 2421 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,840 psi | 89% | 2589 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,840 psi | 89% | 2589 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,405 psi | 87% | 2474 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,797 psi | 89% | 2585 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,317 psi | 85% | 2556 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,130 psi | 88% | 2582 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,711 psi | 90% | 2644 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,897 psi | 86% | 2562 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,633 psi | 79% | 2572 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,158 psi | 86% | 2648 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 56,449 psi | 88% | 2562 fps | 96.8% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,594 psi | 89% | 2628 fps | 99.8% |
| Bofors RP3 | <<locked>> | 82% | 56,420 psi | 88% | 2490 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,543 psi | 73% | 2516 fps | 98.4% |
| Bofors RP5 | <<locked>> | 98% | 57,711 psi | 90% | 2644 fps | 99.9% |
| Bofors RP7 | <<locked>> | 86% | 55,405 psi | 87% | 2493 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,879 psi | 78% | 2526 fps | 99% |
| Hodgdon H380 | <<locked>> | 82% | 56,449 psi | 88% | 2510 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,244 psi | 85% | 2543 fps | 100% |
| Hodgdon H4350 | <<locked>> | 86% | 57,305 psi | 90% | 2552 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 94% | 54,331 psi | 85% | 2539 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,101 psi | 89% | 2579 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,145 psi | 90% | 2513 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,705 psi | 78% | 2628 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 54,273 psi | 85% | 2575 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,869 psi | 58% | 1539 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,290 psi | 90% | 2484 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,681 psi | 89% | 2526 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,971 psi | 89% | 2513 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 56,492 psi | 89% | 2533 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,709 psi | 87% | 2526 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 98% | 55,753 psi | 87% | 2628 fps | 99.2% |
| Lovex S062 | <<locked>> | 82% | 57,609 psi | 90% | 2474 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,421 psi | 90% | 2510 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,550 psi | 87% | 2510 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,764 psi | 81% | 2480 fps | 100% |
| Norma 204 | <<locked>> | 88% | 53,925 psi | 85% | 2530 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 35,752 psi | 56% | 2356 fps | 97.5% |
| Norma MRP | <<locked>> | 96% | 57,566 psi | 90% | 2664 fps | 100% |
| Norma URP | <<locked>> | 88% | 54,737 psi | 86% | 2526 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,405 psi | 88% | 2648 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 90% | 57,000 psi | 89% | 2579 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,302 psi | 85% | 2589 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,797 psi | 59% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,101 psi | 88% | 2500 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,740 psi | 90% | 2589 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,014 psi | 88% | 2562 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,085 psi | 85% | 2589 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,908 psi | 78% | 2628 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 44,831 psi | 70% | 2520 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 84% | 56,710 psi | 89% | 2490 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,650 psi | 86% | 2516 fps | 99% |
| Rottweil R 905 | <<locked>> | 94% | 55,724 psi | 87% | 2572 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 86% | 55,405 psi | 87% | 2493 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,421 psi | 90% | 2510 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,609 psi | 90% | 2474 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,550 psi | 87% | 2510 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,389 psi | 85% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,753 psi | 89% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,855 psi | 89% | 2474 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,303 psi | 87% | 2569 fps | 99.7% |
| Somchem S355 | <<locked>> | 84% | 56,304 psi | 88% | 2484 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,057 psi | 88% | 2510 fps | 98.6% |
| Somchem S365 | <<locked>> | 90% | 54,505 psi | 85% | 2523 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,289 psi | 88% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 57,682 psi | 90% | 2461 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,463 psi | 88% | 2516 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,434 psi | 87% | 2526 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 55,680 psi | 87% | 2526 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,377 psi | 90% | 2585 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,551 psi | 90% | 2664 fps | 99.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,026 psi | 83% | 2589 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 46,296 psi | 73% | 2530 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,883 psi | 88% | 2480 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,462 psi | 85% | 2546 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,593 psi | 87% | 2687 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,115 psi | 88% | 2546 fps | 99.7% |
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 3100 | <<locked>> | 80% | 31,821 psi | 50% | 2136 fps | 97.3% |
| Accurate 4350 | <<locked>> | 80% | 42,873 psi | 67% | 2352 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 42,714 psi | 67% | 2434 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,097 psi | 80% | 2415 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,868 psi | 56% | 2241 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 86% | 39,088 psi | 61% | 2336 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 94% | 37,318 psi | 58% | 2297 fps | 95% |
| ADI AR 2225 | <<locked>> | 92% | 31,256 psi | 49% | 2211 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,201 psi | 57% | 2244 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,201 psi | 57% | 2244 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,257 psi | 82% | 2434 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,176 psi | 65% | 2359 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,166 psi | 74% | 2457 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 35,882 psi | 56% | 2241 fps | 96% |
| Alliant Reloder-22 | <<locked>> | 82% | 33,924 psi | 53% | 2238 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,574 psi | 48% | 2162 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 26,760 psi | 42% | 2080 fps | 95.6% |
| Alliant Reloder-26 | 69 gr | 80% | 32,938 psi | 52% | 2277 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 49,966 psi | 78% | 2464 fps | 95.3% |
| Bofors RP15 | <<locked>> | 84% | 33,765 psi | 53% | 2234 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 52,895 psi | 83% | 2448 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 35,737 psi | 56% | 2313 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 33,924 psi | 53% | 2238 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 46,021 psi | 72% | 2352 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 90% | 35,737 psi | 56% | 2264 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 52,968 psi | 83% | 2467 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,614 psi | 70% | 2395 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 80% | 47,297 psi | 74% | 2408 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 86% | 41,640 psi | 65% | 2339 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 40,959 psi | 64% | 2326 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,870 psi | 61% | 2257 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 33,736 psi | 53% | 2300 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 43,700 psi | 68% | 2415 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,615 psi | 43% | 1375 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,795 psi | 84% | 2441 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,510 psi | 65% | 2297 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,355 psi | 74% | 2375 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 40,973 psi | 64% | 2306 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 40,843 psi | 64% | 2290 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 86% | 37,420 psi | 59% | 2313 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 54,302 psi | 85% | 2434 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,005 psi | 71% | 2336 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 43,279 psi | 68% | 2326 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 27,456 psi | 43% | 2031 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 41,292 psi | 65% | 2329 fps | 97.4% |
| Norma 217 | <<locked>> | 96% | 31,531 psi | 49% | 2254 fps | 95.7% |
| Norma MRP | 67 gr | 80% | 33,054 psi | 52% | 2247 fps | 96.7% |
| Norma URP | <<locked>> | 80% | 42,250 psi | 66% | 2343 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 36,898 psi | 58% | 2316 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 41,017 psi | 64% | 2339 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 32,750 psi | 51% | 2211 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,340 psi | 44% | 1411 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,779 psi | 83% | 2454 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,053 psi | 78% | 2493 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,714 psi | 67% | 2372 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,959 psi | 64% | 2385 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 30,647 psi | 48% | 2224 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 41,597 psi | 65% | 2461 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 49,879 psi | 78% | 2405 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 37,376 psi | 59% | 2228 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 35,085 psi | 55% | 2224 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 46,021 psi | 72% | 2352 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,005 psi | 71% | 2336 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 54,302 psi | 85% | 2434 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,279 psi | 68% | 2326 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,082 psi | 80% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,343 psi | 79% | 2297 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,961 psi | 69% | 2287 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 34,766 psi | 54% | 2221 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 49,821 psi | 78% | 2398 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 40,437 psi | 63% | 2267 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 38,943 psi | 61% | 2303 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,723 psi | 56% | 2215 fps | 97% |
| Vihtavuori N150 | <<locked>> | 80% | 47,630 psi | 75% | 2333 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,627 psi | 68% | 2336 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 32,967 psi | 52% | 2152 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 43,033 psi | 67% | 2343 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 34,185 psi | 54% | 2224 fps | 99.6% |
| Vihtavuori N560 | 72 gr | 86% | 40,930 psi | 64% | 2395 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 90% | 37,942 psi | 59% | 2333 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 43,207 psi | 68% | 2474 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,540 psi | 67% | 2303 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,614 psi | 70% | 2395 fps | 99.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,079 psi | 42% | 2175 fps | 99.7% |
| Winchester Supreme 780 | <<locked>> | 82% | 34,766 psi | 54% | 2195 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 85 powders for .338 Norma Mag. loaded with the .338 | 272gr | SUS-TAC HPT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,687 fps; across all powders the maximum-charge window runs from 1,539 fps to 2,687 fps. ADI AR 2217 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 272.0 gr projectile in 0.338" calls for a 1:9.0 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. Alliant Reloder-26, Vihtavuori N560, Norma MRP rank at the top here: for .338 Norma Mag. with the .338 | 272gr | SUS-TAC HPT 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.