Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 230gr | Berger Hybrid OTM Tactical 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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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 2700 | <<locked>> | 82% | 57,188 psi | 90% | 2474 fps | 99.9% |
| Accurate 3100 | <<locked>> | 98% | 56,463 psi | 88% | 2533 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,217 psi | 90% | 2444 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,665 psi | 86% | 2516 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,838 psi | 84% | 2618 fps | 99% |
| Accurate MAGPRO | <<locked>> | 96% | 54,621 psi | 86% | 2621 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 84% | 56,724 psi | 89% | 2477 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,317 psi | 87% | 2566 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 98% | 56,681 psi | 89% | 2621 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,237 psi | 69% | 2425 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,204 psi | 61% | 2392 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,360 psi | 85% | 2454 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,506 psi | 87% | 2562 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,840 psi | 89% | 2582 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,926 psi | 86% | 2559 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,159 psi | 88% | 2618 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,043 psi | 89% | 2585 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,139 psi | 77% | 2546 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,450 psi | 90% | 2677 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 55,376 psi | 87% | 2536 fps | 96.3% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,013 psi | 86% | 2602 fps | 99.6% |
| Bofors RP3 | <<locked>> | 82% | 55,303 psi | 87% | 2470 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,136 psi | 71% | 2487 fps | 97.9% |
| Bofors RP5 | <<locked>> | 98% | 56,159 psi | 88% | 2618 fps | 99.7% |
| Bofors RP7 | <<locked>> | 86% | 54,447 psi | 85% | 2470 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,501 psi | 76% | 2500 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 55,477 psi | 87% | 2490 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,507 psi | 89% | 2566 fps | 100% |
| Hodgdon H4350 | <<locked>> | 86% | 55,970 psi | 88% | 2526 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 96% | 56,855 psi | 89% | 2569 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,724 psi | 87% | 2552 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,883 psi | 88% | 2493 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,356 psi | 76% | 2602 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 88% | 56,855 psi | 89% | 2605 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,956 psi | 58% | 1526 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,144 psi | 88% | 2461 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,506 psi | 87% | 2503 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,057 psi | 88% | 2493 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 55,172 psi | 86% | 2510 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,520 psi | 85% | 2503 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 98% | 54,288 psi | 85% | 2602 fps | 98.9% |
| Lovex S062 | <<locked>> | 82% | 56,753 psi | 89% | 2454 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,318 psi | 88% | 2490 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,740 psi | 90% | 2530 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,241 psi | 79% | 2451 fps | 100% |
| Norma 203B | <<locked>> | 82% | 57,305 psi | 90% | 2507 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,478 psi | 89% | 2559 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 34,650 psi | 54% | 2323 fps | 96.8% |
| Norma MRP | <<locked>> | 96% | 55,796 psi | 87% | 2638 fps | 100% |
| Norma URP | <<locked>> | 90% | 56,855 psi | 89% | 2546 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,679 psi | 86% | 2618 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 90% | 55,680 psi | 87% | 2559 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,518 psi | 82% | 2559 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,666 psi | 59% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,216 psi | 87% | 2480 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,231 psi | 88% | 2566 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,592 psi | 86% | 2539 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,565 psi | 89% | 2615 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,283 psi | 76% | 2598 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,463 psi | 87% | 2467 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,942 psi | 89% | 2539 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 94% | 54,230 psi | 85% | 2546 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 54,447 psi | 85% | 2470 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,318 psi | 88% | 2490 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,753 psi | 89% | 2454 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,740 psi | 90% | 2530 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,869 psi | 89% | 2523 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,825 psi | 87% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,782 psi | 87% | 2451 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,406 psi | 90% | 2592 fps | 99.8% |
| Somchem S355 | <<locked>> | 84% | 55,230 psi | 87% | 2464 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,853 psi | 86% | 2487 fps | 98.3% |
| Somchem S365 | <<locked>> | 92% | 56,710 psi | 89% | 2546 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,708 psi | 86% | 2523 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 86% | 56,449 psi | 88% | 2438 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,158 psi | 86% | 2493 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,128 psi | 85% | 2503 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 82% | 57,203 psi | 90% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,375 psi | 85% | 2503 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,811 psi | 87% | 2562 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,840 psi | 88% | 2635 fps | 98.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,488 psi | 81% | 2562 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,491 psi | 85% | 2461 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,782 psi | 89% | 2569 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,229 psi | 83% | 2661 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,650 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% | 53,780 psi | 84% | 2428 fps | 99.7% |
| Accurate 3100 | <<locked>> | 80% | 30,995 psi | 49% | 2110 fps | 96.9% |
| Accurate 4064 | <<locked>> | 80% | 53,998 psi | 85% | 2405 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,858 psi | 66% | 2326 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 38,232 psi | 60% | 2352 fps | 95.6% |
| Accurate MAGPRO | 61.3 gr | 88% | 41,510 psi | 65% | 2405 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 50,343 psi | 79% | 2395 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,157 psi | 55% | 2215 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 88% | 40,770 psi | 64% | 2359 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 96% | 38,856 psi | 61% | 2320 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 92% | 30,516 psi | 48% | 2182 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,082 psi | 80% | 2411 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,248 psi | 63% | 2333 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,151 psi | 72% | 2438 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 35,085 psi | 55% | 2215 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,317 psi | 55% | 2264 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,921 psi | 47% | 2139 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 26,179 psi | 41% | 2054 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,981 psi | 50% | 2247 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 52,069 psi | 82% | 2487 fps | 95.6% |
| Bofors RP15 | <<locked>> | 86% | 35,056 psi | 55% | 2257 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 51,895 psi | 81% | 2428 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 37,144 psi | 58% | 2336 fps | 95.6% |
| Bofors RP5 | <<locked>> | 84% | 35,317 psi | 55% | 2264 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 45,150 psi | 71% | 2329 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 37,188 psi | 58% | 2287 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 51,851 psi | 81% | 2441 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,671 psi | 68% | 2372 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 46,427 psi | 73% | 2385 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 40,683 psi | 64% | 2313 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 88% | 42,757 psi | 67% | 2352 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,985 psi | 60% | 2234 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 32,967 psi | 52% | 2274 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 42,511 psi | 67% | 2392 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 43% | 1362 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,997 psi | 83% | 2418 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,727 psi | 64% | 2274 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,615 psi | 73% | 2356 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 40,118 psi | 63% | 2283 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 40,045 psi | 63% | 2264 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 88% | 39,044 psi | 61% | 2339 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 53,316 psi | 84% | 2411 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,237 psi | 69% | 2313 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 42,351 psi | 66% | 2300 fps | 99% |
| Lovex S071 | <<locked>> | 80% | 26,861 psi | 42% | 2008 fps | 95% |
| Norma 203B | <<locked>> | 80% | 53,838 psi | 84% | 2461 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,350 psi | 63% | 2303 fps | 97% |
| Norma 217 | <<locked>> | 98% | 32,518 psi | 51% | 2270 fps | 95.9% |
| Norma MRP | 54.7 gr | 80% | 32,242 psi | 51% | 2218 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 41,249 psi | 65% | 2316 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 38,479 psi | 60% | 2343 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 40,045 psi | 63% | 2316 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 31,995 psi | 50% | 2185 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,210 psi | 44% | 1394 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,692 psi | 81% | 2431 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,979 psi | 77% | 2474 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,582 psi | 65% | 2346 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,943 psi | 63% | 2359 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 31,836 psi | 50% | 2247 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 48,805 psi | 76% | 2382 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 39,117 psi | 61% | 2254 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 34,287 psi | 54% | 2201 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 45,150 psi | 71% | 2329 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,237 psi | 69% | 2313 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 53,316 psi | 84% | 2411 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,351 psi | 66% | 2300 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,980 psi | 78% | 2431 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,632 psi | 78% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,134 psi | 68% | 2264 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 33,968 psi | 53% | 2195 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 49,008 psi | 77% | 2379 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,221 psi | 66% | 2290 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 37,985 psi | 60% | 2280 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,954 psi | 55% | 2192 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 80% | 46,659 psi | 73% | 2313 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,699 psi | 67% | 2313 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 32,169 psi | 50% | 2126 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 53,577 psi | 84% | 2392 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,974 psi | 66% | 2316 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 33,431 psi | 52% | 2201 fps | 99.4% |
| Vihtavuori N560 | 58.8 gr | 86% | 39,929 psi | 63% | 2369 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 92% | 39,363 psi | 62% | 2356 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,582 psi | 65% | 2283 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,671 psi | 68% | 2372 fps | 99.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,382 psi | 41% | 2142 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 33,866 psi | 53% | 2169 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 92 powders for .308 Norma Mag. loaded with the .308 | 230gr | Berger Hybrid OTM Tactical. Alliant Reloder-26 delivers the highest muzzle velocity at 2,677 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,677 fps. ADI AR 2217 gives the best case fill at 100 %, and 92 of the 92 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 | Berger Hybrid OTM Tactical they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 7977 Enduron, IMR 8133 Enduron, Vihtavuori N170 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.