Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 220gr | Sako Hammerhead bullet and 84 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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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>> | 98% | 57,711 psi | 90% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,927 psi | 88% | 2602 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 55,361 psi | 87% | 2713 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 96% | 56,101 psi | 88% | 2713 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 84% | 57,551 psi | 90% | 2562 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,550 psi | 89% | 2654 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 96% | 53,998 psi | 85% | 2657 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,107 psi | 71% | 2507 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,089 psi | 63% | 2474 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,579 psi | 89% | 2651 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,579 psi | 89% | 2651 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,303 psi | 87% | 2539 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,521 psi | 89% | 2651 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,186 psi | 85% | 2618 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,869 psi | 88% | 2644 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,290 psi | 90% | 2703 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,578 psi | 86% | 2628 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 2631 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,795 psi | 86% | 2713 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 56,318 psi | 88% | 2621 fps | 96.4% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,130 psi | 88% | 2687 fps | 99.6% |
| Bofors RP3 | <<locked>> | 82% | 56,115 psi | 88% | 2552 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,383 psi | 73% | 2572 fps | 98% |
| Bofors RP5 | <<locked>> | 98% | 57,290 psi | 90% | 2703 fps | 99.8% |
| Bofors RP7 | <<locked>> | 86% | 55,288 psi | 87% | 2556 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,777 psi | 78% | 2589 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 82% | 56,405 psi | 88% | 2575 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 53,940 psi | 85% | 2602 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,913 psi | 89% | 2612 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 94% | 54,273 psi | 85% | 2602 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,681 psi | 89% | 2638 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,014 psi | 89% | 2579 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,472 psi | 78% | 2690 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 86% | 54,157 psi | 85% | 2638 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,912 psi | 58% | 1581 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,145 psi | 90% | 2546 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,463 psi | 88% | 2589 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,782 psi | 89% | 2575 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 56,260 psi | 88% | 2595 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,608 psi | 87% | 2589 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 98% | 55,448 psi | 87% | 2690 fps | 99% |
| Lovex S062 | <<locked>> | 82% | 57,464 psi | 90% | 2536 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,290 psi | 90% | 2575 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,201 psi | 87% | 2569 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,430 psi | 81% | 2536 fps | 100% |
| Norma 204 | <<locked>> | 90% | 57,464 psi | 90% | 2644 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 35,520 psi | 56% | 2402 fps | 96.9% |
| Norma MRP | <<locked>> | 96% | 57,217 psi | 90% | 2726 fps | 100% |
| Norma URP | <<locked>> | 88% | 54,375 psi | 85% | 2585 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,159 psi | 88% | 2710 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 90% | 56,695 psi | 89% | 2641 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,954 psi | 85% | 2648 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,797 psi | 59% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,970 psi | 88% | 2562 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,624 psi | 90% | 2654 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,753 psi | 87% | 2625 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,056 psi | 85% | 2654 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,371 psi | 77% | 2684 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 56,478 psi | 89% | 2552 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,302 psi | 85% | 2575 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 55,288 psi | 87% | 2631 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 55,288 psi | 87% | 2556 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,290 psi | 90% | 2575 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,464 psi | 90% | 2536 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,201 psi | 87% | 2569 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,317 psi | 85% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,797 psi | 89% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,579 psi | 89% | 2533 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,839 psi | 86% | 2628 fps | 99.6% |
| Somchem S355 | <<locked>> | 84% | 56,057 psi | 88% | 2546 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,883 psi | 88% | 2572 fps | 98.3% |
| Somchem S365 | <<locked>> | 90% | 54,230 psi | 85% | 2589 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,825 psi | 87% | 2608 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 86% | 57,246 psi | 90% | 2520 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,362 psi | 88% | 2579 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,274 psi | 87% | 2589 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 55,376 psi | 87% | 2585 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,145 psi | 90% | 2651 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,188 psi | 90% | 2726 fps | 98.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,852 psi | 83% | 2651 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,622 psi | 87% | 2546 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,186 psi | 85% | 2605 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,013 psi | 86% | 2753 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,767 psi | 87% | 2605 fps | 99.5% |
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% | 31,589 psi | 50% | 2178 fps | 96.8% |
| Accurate 4350 | <<locked>> | 80% | 42,598 psi | 67% | 2405 fps | 100% |
| Accurate High Country | 60.6 gr | 84% | 39,088 psi | 61% | 2428 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 88% | 42,380 psi | 66% | 2484 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 50,908 psi | 80% | 2470 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,723 psi | 56% | 2290 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 88% | 41,394 psi | 65% | 2438 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 96% | 39,668 psi | 62% | 2398 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 92% | 31,140 psi | 49% | 2254 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 35,998 psi | 56% | 2293 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 35,998 psi | 56% | 2293 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,895 psi | 81% | 2490 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,046 psi | 64% | 2411 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,137 psi | 74% | 2520 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 35,665 psi | 56% | 2287 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,027 psi | 56% | 2339 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,400 psi | 48% | 2205 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,384 psi | 44% | 2172 fps | 96% |
| Alliant Reloder-26 | 59.5 gr | 80% | 32,808 psi | 51% | 2323 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 52,910 psi | 83% | 2572 fps | 95.6% |
| Bofors RP15 | <<locked>> | 86% | 35,723 psi | 56% | 2329 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 52,591 psi | 82% | 2507 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 37,927 psi | 59% | 2411 fps | 95.6% |
| Bofors RP5 | <<locked>> | 84% | 36,027 psi | 56% | 2339 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 45,876 psi | 72% | 2408 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 38,116 psi | 60% | 2369 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 52,663 psi | 83% | 2523 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,411 psi | 70% | 2451 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 46,992 psi | 74% | 2461 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 41,452 psi | 65% | 2392 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 88% | 43,424 psi | 68% | 2428 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,624 psi | 61% | 2310 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 33,547 psi | 53% | 2346 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 43,482 psi | 68% | 2470 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 43% | 1407 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,592 psi | 84% | 2500 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,350 psi | 65% | 2349 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,268 psi | 74% | 2434 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 40,799 psi | 64% | 2362 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 40,770 psi | 64% | 2343 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 88% | 39,711 psi | 62% | 2415 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 53,940 psi | 85% | 2490 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,759 psi | 70% | 2388 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 43,047 psi | 67% | 2379 fps | 99% |
| Lovex S071 | <<locked>> | 82% | 29,095 psi | 46% | 2119 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 41,191 psi | 65% | 2382 fps | 97% |
| Norma 217 | <<locked>> | 98% | 33,402 psi | 52% | 2349 fps | 96% |
| Norma MRP | <<locked>> | 80% | 32,953 psi | 52% | 2293 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 41,959 psi | 66% | 2395 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 39,378 psi | 62% | 2425 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,915 psi | 64% | 2395 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 32,648 psi | 51% | 2257 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,239 psi | 44% | 1444 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,576 psi | 82% | 2513 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,024 psi | 78% | 2559 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,482 psi | 67% | 2425 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,872 psi | 64% | 2441 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 32,547 psi | 51% | 2323 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 49,588 psi | 78% | 2461 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 39,624 psi | 62% | 2326 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 34,940 psi | 55% | 2274 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 45,876 psi | 72% | 2408 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,759 psi | 70% | 2388 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 53,940 psi | 85% | 2490 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,047 psi | 67% | 2379 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,010 psi | 80% | 2516 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,111 psi | 79% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,888 psi | 69% | 2343 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 34,606 psi | 54% | 2270 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 49,559 psi | 78% | 2457 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,004 psi | 67% | 2369 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 38,754 psi | 61% | 2356 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,491 psi | 56% | 2260 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,398 psi | 74% | 2388 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,381 psi | 68% | 2392 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 32,779 psi | 51% | 2198 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 42,757 psi | 67% | 2395 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 34,142 psi | 54% | 2277 fps | 99.4% |
| Vihtavuori N560 | 62.1 gr | 86% | 40,770 psi | 64% | 2448 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 92% | 40,364 psi | 63% | 2434 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,438 psi | 67% | 2362 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,411 psi | 70% | 2451 fps | 99.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,006 psi | 42% | 2218 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 34,577 psi | 54% | 2241 fps | 95% |
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 84 powders for .308 Norma Mag. loaded with the .308 | 220gr | Sako Hammerhead. Winchester StaBALL HD delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,581 fps to 2,753 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 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 220.0 gr projectile in 0.308" calls for a 1:13.0 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. Accurate High Country, Alliant Reloder-26, Vihtavuori N560 rank at the top here: for .308 Norma Mag. with the .308 | 220gr | Sako Hammerhead 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.