Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 230gr | Sierra MatchKing bullet and 86 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>> | 82% | 57,290 psi | 90% | 2474 fps | 99.9% |
| Accurate 3100 | <<locked>> | 98% | 56,318 psi | 88% | 2533 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,290 psi | 90% | 2444 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,752 psi | 86% | 2516 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,969 psi | 85% | 2621 fps | 99% |
| Accurate MAGPRO | <<locked>> | 96% | 54,781 psi | 86% | 2625 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 84% | 56,782 psi | 89% | 2480 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,390 psi | 87% | 2569 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 98% | 56,521 psi | 89% | 2618 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,106 psi | 69% | 2421 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,073 psi | 61% | 2392 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,418 psi | 85% | 2454 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,593 psi | 87% | 2566 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,623 psi | 89% | 2579 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,781 psi | 86% | 2556 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,970 psi | 88% | 2615 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2582 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,211 psi | 77% | 2546 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,246 psi | 90% | 2674 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 55,201 psi | 87% | 2536 fps | 96.3% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 2598 fps | 99.6% |
| Bofors RP3 | <<locked>> | 82% | 55,129 psi | 86% | 2467 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,020 psi | 71% | 2487 fps | 97.9% |
| Bofors RP5 | <<locked>> | 98% | 55,970 psi | 88% | 2615 fps | 99.7% |
| Bofors RP7 | <<locked>> | 86% | 54,302 psi | 85% | 2467 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,646 psi | 76% | 2500 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 82% | 55,288 psi | 87% | 2487 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,579 psi | 89% | 2566 fps | 100% |
| Hodgdon H4350 | <<locked>> | 86% | 56,043 psi | 88% | 2526 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 96% | 56,666 psi | 89% | 2566 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,535 psi | 87% | 2549 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,695 psi | 87% | 2490 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,211 psi | 76% | 2598 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 88% | 56,652 psi | 89% | 2602 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,999 psi | 58% | 1526 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,217 psi | 88% | 2461 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,593 psi | 87% | 2507 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,869 psi | 88% | 2490 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 55,027 psi | 86% | 2507 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,592 psi | 86% | 2503 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 98% | 54,128 psi | 85% | 2598 fps | 98.9% |
| Lovex S062 | <<locked>> | 82% | 56,536 psi | 89% | 2451 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,173 psi | 88% | 2487 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,375 psi | 85% | 2487 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,328 psi | 79% | 2454 fps | 100% |
| Norma 203B | <<locked>> | 82% | 57,363 psi | 90% | 2507 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,275 psi | 88% | 2556 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 34,563 psi | 54% | 2323 fps | 96.8% |
| Norma MRP | <<locked>> | 96% | 55,883 psi | 88% | 2641 fps | 100% |
| Norma URP | <<locked>> | 90% | 56,956 psi | 89% | 2549 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,766 psi | 86% | 2618 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 90% | 55,492 psi | 87% | 2556 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,620 psi | 82% | 2559 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,710 psi | 59% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,071 psi | 86% | 2477 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,347 psi | 88% | 2566 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,389 psi | 85% | 2539 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,391 psi | 88% | 2615 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,124 psi | 75% | 2595 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 55,521 psi | 87% | 2470 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,753 psi | 89% | 2536 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 96% | 57,711 psi | 90% | 2592 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 86% | 54,302 psi | 85% | 2467 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,173 psi | 88% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,536 psi | 89% | 2451 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,375 psi | 85% | 2487 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,985 psi | 89% | 2523 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,898 psi | 88% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,608 psi | 87% | 2448 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,246 psi | 90% | 2589 fps | 99.8% |
| Somchem S355 | <<locked>> | 84% | 55,332 psi | 87% | 2464 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,694 psi | 86% | 2484 fps | 98.2% |
| Somchem S365 | <<locked>> | 92% | 56,782 psi | 89% | 2546 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,781 psi | 86% | 2523 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 86% | 56,507 psi | 89% | 2441 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,288 psi | 87% | 2493 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,566 psi | 90% | 2549 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 82% | 57,029 psi | 89% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,244 psi | 85% | 2500 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,898 psi | 88% | 2566 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,956 psi | 88% | 2635 fps | 98.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,329 psi | 80% | 2559 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,592 psi | 86% | 2464 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,884 psi | 89% | 2569 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,359 psi | 84% | 2664 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,737 psi | 86% | 2520 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% | 53,606 psi | 84% | 2425 fps | 99.7% |
| Accurate 3100 | <<locked>> | 80% | 31,053 psi | 49% | 2110 fps | 96.9% |
| Accurate 4064 | <<locked>> | 80% | 53,809 psi | 84% | 2402 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,916 psi | 66% | 2329 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 38,276 psi | 60% | 2352 fps | 95.6% |
| Accurate MAGPRO | 61.2 gr | 88% | 41,336 psi | 65% | 2402 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 50,169 psi | 79% | 2392 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,215 psi | 55% | 2218 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 88% | 40,654 psi | 64% | 2359 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 96% | 38,740 psi | 61% | 2316 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 92% | 30,429 psi | 48% | 2182 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,126 psi | 80% | 2411 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,335 psi | 63% | 2333 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,977 psi | 72% | 2434 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 35,172 psi | 55% | 2218 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,375 psi | 55% | 2264 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,805 psi | 47% | 2136 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 80% | 26,223 psi | 41% | 2054 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,024 psi | 50% | 2247 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 51,924 psi | 81% | 2487 fps | 95.5% |
| Bofors RP15 | <<locked>> | 86% | 35,114 psi | 55% | 2257 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 51,735 psi | 81% | 2425 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 36,985 psi | 58% | 2333 fps | 95.6% |
| Bofors RP5 | <<locked>> | 84% | 35,375 psi | 55% | 2264 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 45,208 psi | 71% | 2329 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 37,275 psi | 58% | 2290 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 51,909 psi | 81% | 2444 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,526 psi | 68% | 2369 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 46,282 psi | 73% | 2382 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 40,741 psi | 64% | 2313 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 39,972 psi | 63% | 2300 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,840 psi | 59% | 2231 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 32,866 psi | 52% | 2270 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 42,337 psi | 66% | 2388 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 43% | 1358 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,808 psi | 83% | 2418 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,770 psi | 64% | 2274 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,485 psi | 73% | 2352 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 39,987 psi | 63% | 2283 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 40,089 psi | 63% | 2264 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 88% | 38,914 psi | 61% | 2336 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 53,156 psi | 83% | 2408 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,092 psi | 69% | 2310 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 42,438 psi | 67% | 2303 fps | 99% |
| Lovex S071 | <<locked>> | 80% | 26,745 psi | 42% | 2005 fps | 95% |
| Norma 203B | <<locked>> | 80% | 53,954 psi | 85% | 2464 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,393 psi | 63% | 2303 fps | 97% |
| Norma 217 | <<locked>> | 98% | 32,576 psi | 51% | 2274 fps | 95.9% |
| Norma MRP | 54.6 gr | 80% | 32,126 psi | 50% | 2218 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 41,292 psi | 65% | 2320 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 38,537 psi | 60% | 2343 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,089 psi | 63% | 2316 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 31,894 psi | 50% | 2185 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,239 psi | 44% | 1394 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,779 psi | 81% | 2431 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,776 psi | 76% | 2470 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,626 psi | 65% | 2349 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,016 psi | 63% | 2359 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 31,894 psi | 50% | 2251 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 48,863 psi | 77% | 2382 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 38,972 psi | 61% | 2251 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 34,330 psi | 54% | 2201 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 45,208 psi | 71% | 2329 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,092 psi | 69% | 2310 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 53,156 psi | 83% | 2408 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,438 psi | 67% | 2303 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,082 psi | 78% | 2434 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,487 psi | 78% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,178 psi | 68% | 2267 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 34,011 psi | 53% | 2198 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 48,849 psi | 77% | 2379 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,293 psi | 66% | 2293 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 38,029 psi | 60% | 2280 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,838 psi | 55% | 2188 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 80% | 46,731 psi | 73% | 2313 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,801 psi | 67% | 2316 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 32,213 psi | 50% | 2126 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 53,693 psi | 84% | 2392 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,076 psi | 66% | 2320 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 33,286 psi | 52% | 2198 fps | 99.4% |
| Vihtavuori N560 | 58.7 gr | 86% | 39,798 psi | 62% | 2365 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 92% | 39,218 psi | 61% | 2352 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,452 psi | 65% | 2280 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,714 psi | 69% | 2372 fps | 99.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,411 psi | 41% | 2146 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 33,953 psi | 53% | 2172 fps | 95.1% |
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 .308 Norma Mag. loaded with the .308 | 230gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,674 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,674 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 (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 230.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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 | 230gr | Sierra MatchKing 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.