Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 220gr | Woodleigh RN SN bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
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 2700 | <<locked>> | 84% | 56,695 psi | 89% | 2539 fps | 99.9% |
| Accurate 3100 | <<locked>> | 96% | 55,085 psi | 86% | 2591 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,058 psi | 89% | 2621 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,302 psi | 85% | 2687 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 54,839 psi | 86% | 2532 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,508 psi | 90% | 2674 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 96% | 55,056 psi | 86% | 2679 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,485 psi | 73% | 2531 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,017 psi | 64% | 2496 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,173 psi | 88% | 2555 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,667 psi | 90% | 2668 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,027 psi | 86% | 2634 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,014 psi | 89% | 2664 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,781 psi | 86% | 2674 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,840 psi | 88% | 2646 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2652 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 56,304 psi | 88% | 2735 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,867 psi | 84% | 2594 fps | 96% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2713 fps | 99.8% |
| Bofors RP3 | <<locked>> | 82% | 57,232 psi | 90% | 2572 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,427 psi | 74% | 2594 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 54,781 psi | 86% | 2674 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 56,028 psi | 88% | 2572 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,427 psi | 74% | 2556 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 57,203 psi | 90% | 2592 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 56,159 psi | 88% | 2637 fps | 100% |
| Hodgdon H4350 | <<locked>> | 88% | 56,362 psi | 88% | 2612 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 98% | 56,043 psi | 88% | 2614 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,099 psi | 85% | 2607 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,404 psi | 85% | 2551 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,473 psi | 79% | 2713 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 55,071 psi | 86% | 2657 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,898 psi | 59% | 1588 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,479 psi | 90% | 2556 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,796 psi | 87% | 2544 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,363 psi | 90% | 2608 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,479 psi | 90% | 2592 fps | 100% |
| IMR 4831 | <<locked>> | 92% | 54,752 psi | 86% | 2580 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,420 psi | 88% | 2608 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 56,811 psi | 89% | 2715 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 54,563 psi | 86% | 2543 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,173 psi | 88% | 2589 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,736 psi | 83% | 2557 fps | 100% |
| Norma 204 | <<locked>> | 88% | 54,737 psi | 86% | 2612 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 37,362 psi | 59% | 2425 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 54,665 psi | 86% | 2697 fps | 100% |
| Norma URP | <<locked>> | 88% | 55,376 psi | 87% | 2604 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 56,695 psi | 89% | 2725 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 90% | 57,595 psi | 90% | 2659 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 53,301 psi | 84% | 2644 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,043 psi | 60% | 1627 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,956 psi | 89% | 2582 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,737 psi | 86% | 2624 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,739 psi | 89% | 2644 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,969 psi | 86% | 2671 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,779 psi | 81% | 2710 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 45,745 psi | 72% | 2600 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 84% | 57,377 psi | 90% | 2569 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,434 psi | 87% | 2597 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 94% | 56,478 psi | 89% | 2653 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 86% | 56,028 psi | 88% | 2572 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,563 psi | 86% | 2543 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,173 psi | 88% | 2589 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,129 psi | 86% | 2577 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,363 psi | 90% | 2447 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,464 psi | 90% | 2550 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,028 psi | 88% | 2651 fps | 99.7% |
| Somchem S355 | <<locked>> | 84% | 57,130 psi | 90% | 2564 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,826 psi | 89% | 2592 fps | 98.5% |
| Somchem S365 | <<locked>> | 90% | 55,332 psi | 87% | 2604 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,956 psi | 89% | 2629 fps | 99.9% |
| Unknown powder | <<locked>> | 86% | 55,796 psi | 87% | 2609 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,492 psi | 87% | 2507 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,999 psi | 88% | 2577 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,419 psi | 87% | 2585 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 56,594 psi | 89% | 2622 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,766 psi | 86% | 2624 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,201 psi | 87% | 2703 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,360 psi | 85% | 2669 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,008 psi | 75% | 2610 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,681 psi | 89% | 2562 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,159 psi | 88% | 2637 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 57,029 psi | 89% | 2773 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,708 psi | 86% | 2595 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 2700 | <<locked>> | 80% | 49,879 psi | 78% | 2441 fps | 99.4% |
| Accurate 3100 | <<locked>> | 80% | 32,300 psi | 51% | 2199 fps | 97.2% |
| Accurate 4350 | <<locked>> | 80% | 43,453 psi | 68% | 2421 fps | 100% |
| Accurate MAGPRO | 68.9 gr | 92% | 47,210 psi | 74% | 2572 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 51,735 psi | 81% | 2489 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,390 psi | 57% | 2309 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 86% | 39,523 psi | 62% | 2403 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 96% | 40,495 psi | 63% | 2424 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 92% | 31,720 psi | 50% | 2277 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,779 psi | 83% | 2509 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,858 psi | 66% | 2432 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,022 psi | 75% | 2537 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,332 psi | 57% | 2306 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 82% | 34,519 psi | 54% | 2307 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,053 psi | 49% | 2225 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,151 psi | 43% | 2139 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,605 psi | 53% | 2347 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 50,633 psi | 79% | 2542 fps | 95.2% |
| Bofors RP15 | <<locked>> | 84% | 34,258 psi | 54% | 2300 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 53,476 psi | 84% | 2523 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 36,405 psi | 57% | 2383 fps | 95.1% |
| Bofors RP5 | <<locked>> | 82% | 34,519 psi | 54% | 2306 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 46,630 psi | 73% | 2427 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 92% | 36,492 psi | 57% | 2339 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 53,722 psi | 84% | 2544 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 49,052 psi | 77% | 2533 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,063 psi | 69% | 2415 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 90% | 42,235 psi | 66% | 2411 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 86% | 41,452 psi | 65% | 2396 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,421 psi | 62% | 2327 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 34,243 psi | 54% | 2369 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 44,396 psi | 70% | 2492 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,746 psi | 43% | 1418 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,879 psi | 80% | 2467 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,516 psi | 78% | 2451 fps | 99.7% |
| IMR 4350 | <<locked>> | 80% | 42,032 psi | 66% | 2365 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,022 psi | 75% | 2451 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 37,695 psi | 59% | 2306 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 84% | 41,379 psi | 65% | 2359 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 86% | 40,509 psi | 63% | 2437 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 45,527 psi | 71% | 2405 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 43,787 psi | 69% | 2396 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 27,963 psi | 44% | 2091 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 41,916 psi | 66% | 2401 fps | 97.3% |
| Norma 217 | <<locked>> | 96% | 32,082 psi | 50% | 2320 fps | 95.5% |
| Norma MRP | 58.8 gr | 80% | 33,591 psi | 53% | 2313 fps | 96.5% |
| Norma URP | <<locked>> | 80% | 42,801 psi | 67% | 2413 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 39,378 psi | 62% | 2429 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 41,669 psi | 65% | 2412 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 84% | 34,098 psi | 53% | 2298 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,224 psi | 44% | 1450 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,345 psi | 84% | 2532 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,937 psi | 80% | 2573 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,265 psi | 68% | 2443 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,553 psi | 65% | 2458 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 31,140 psi | 49% | 2290 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 43,468 psi | 68% | 2540 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 50,444 psi | 79% | 2477 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 37,768 psi | 59% | 2292 fps | 95% |
| Rottweil R 905 | <<locked>> | 80% | 35,636 psi | 56% | 2294 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 46,630 psi | 73% | 2427 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,527 psi | 71% | 2405 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 43,787 psi | 69% | 2395 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,793 psi | 81% | 2531 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,966 psi | 80% | 2369 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,614 psi | 70% | 2360 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,317 psi | 55% | 2290 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 50,415 psi | 79% | 2474 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 40,959 psi | 64% | 2336 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 39,595 psi | 62% | 2375 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,172 psi | 57% | 2280 fps | 96.9% |
| Unknown powder | <<locked>> | 80% | 45,818 psi | 72% | 2459 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,352 psi | 68% | 2335 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,006 psi | 72% | 2435 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 32,474 psi | 51% | 2195 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 46,659 psi | 73% | 2477 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 34,780 psi | 55% | 2293 fps | 99.5% |
| Vihtavuori N560 | 61.9 gr | 86% | 39,537 psi | 62% | 2429 fps | 95% |
| Vihtavuori N565 | <<locked>> | 90% | 38,580 psi | 60% | 2402 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 44,469 psi | 70% | 2550 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,062 psi | 67% | 2375 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,052 psi | 77% | 2533 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,543 psi | 43% | 2238 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,882 psi | 56% | 2275 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 88 powders for .308 Norma Mag. loaded with the .308 | 220gr | Woodleigh RN SN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,773 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,773 fps. ADI AR 2217 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:14.5 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for .308 Norma Mag. with the .308 | 220gr | Woodleigh RN SN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, IMR 8133 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.