Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 220gr | Nosler Ballistic Tip Hunting bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Ramshot Grand.
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% | 53,258 psi | 85% | 2493 fps | 99.7% |
| Accurate 3100 | <<locked>> | 96% | 55,492 psi | 89% | 2595 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 53,388 psi | 86% | 2572 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,433 psi | 87% | 2687 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 54,998 psi | 88% | 2533 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,099 psi | 87% | 2628 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 96% | 55,361 psi | 89% | 2684 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,238 psi | 74% | 2533 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,944 psi | 66% | 2500 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,376 psi | 90% | 2556 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,244 psi | 87% | 2621 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,347 psi | 89% | 2638 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,577 psi | 86% | 2615 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,143 psi | 88% | 2680 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,231 psi | 90% | 2651 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,779 psi | 83% | 2657 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,446 psi | 84% | 2684 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,911 psi | 86% | 2595 fps | 96.1% |
| Bofors RP15 | <<locked>> | 98% | 54,041 psi | 87% | 2664 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,761 psi | 77% | 2602 fps | 98.4% |
| Bofors RP5 | <<locked>> | 96% | 55,143 psi | 88% | 2680 fps | 99.7% |
| Bofors RP7 | <<locked>> | 86% | 56,217 psi | 90% | 2572 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,529 psi | 76% | 2559 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 56,188 psi | 90% | 2638 fps | 100% |
| Hodgdon H4350 | <<locked>> | 86% | 53,156 psi | 85% | 2566 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 98% | 54,650 psi | 88% | 2615 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,433 psi | 87% | 2612 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,694 psi | 88% | 2556 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,575 psi | 81% | 2717 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 55,405 psi | 89% | 2661 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,927 psi | 59% | 1588 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,143 psi | 87% | 2510 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,970 psi | 90% | 2546 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,201 psi | 87% | 2562 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,288 psi | 87% | 2546 fps | 99.9% |
| IMR 4831 | <<locked>> | 92% | 55,042 psi | 88% | 2582 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,272 psi | 85% | 2562 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 94% | 53,243 psi | 85% | 2664 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 54,795 psi | 88% | 2546 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,391 psi | 90% | 2592 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,663 psi | 84% | 2559 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,056 psi | 88% | 2615 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 36,622 psi | 59% | 2434 fps | 97.6% |
| Norma MRP | <<locked>> | 94% | 54,795 psi | 88% | 2700 fps | 100% |
| Norma URP | <<locked>> | 88% | 55,637 psi | 89% | 2608 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,040 psi | 85% | 2671 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 54,418 psi | 87% | 2615 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 53,737 psi | 86% | 2651 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,826 psi | 61% | 1627 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,766 psi | 88% | 2621 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,272 psi | 85% | 2598 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,317 psi | 89% | 2674 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,923 psi | 82% | 2717 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 45,803 psi | 73% | 2605 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 54,012 psi | 87% | 2526 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,448 psi | 89% | 2598 fps | 99% |
| Rottweil R 905 | <<locked>> | 92% | 53,229 psi | 85% | 2608 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 56,217 psi | 90% | 2572 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,795 psi | 88% | 2546 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,391 psi | 90% | 2592 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,376 psi | 89% | 2579 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,230 psi | 87% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,186 psi | 87% | 2507 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,115 psi | 90% | 2651 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 53,896 psi | 86% | 2523 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,519 psi | 86% | 2546 fps | 98.1% |
| Somchem S365 | <<locked>> | 90% | 55,680 psi | 89% | 2608 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,534 psi | 86% | 2582 fps | 99.8% |
| Unknown powder | <<locked>> | 86% | 55,796 psi | 89% | 2608 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 54,955 psi | 88% | 2497 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,824 psi | 86% | 2552 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 53,113 psi | 85% | 2566 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 52,924 psi | 85% | 2559 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,114 psi | 88% | 2628 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,795 psi | 88% | 2697 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,302 psi | 87% | 2677 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 47,268 psi | 76% | 2612 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,040 psi | 85% | 2516 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,188 psi | 90% | 2638 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,924 psi | 85% | 2726 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,042 psi | 88% | 2602 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% | 50,082 psi | 80% | 2444 fps | 99.4% |
| Accurate 3100 | <<locked>> | 80% | 32,416 psi | 52% | 2201 fps | 97.4% |
| Accurate 4350 | <<locked>> | 80% | 43,642 psi | 70% | 2428 fps | 100% |
| Accurate MAGPRO | 67.1 gr | 90% | 44,106 psi | 71% | 2516 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 51,880 psi | 83% | 2490 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,535 psi | 59% | 2313 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 86% | 39,740 psi | 64% | 2408 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 94% | 37,971 psi | 61% | 2372 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 92% | 31,879 psi | 51% | 2283 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,953 psi | 85% | 2510 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,018 psi | 67% | 2434 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,225 psi | 77% | 2539 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,492 psi | 59% | 2310 fps | 96% |
| Alliant Reloder-22 | <<locked>> | 82% | 34,693 psi | 56% | 2313 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,183 psi | 50% | 2228 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,267 psi | 44% | 2146 fps | 95.6% |
| Alliant Reloder-26 | 60.3 gr | 80% | 33,634 psi | 54% | 2349 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 50,676 psi | 81% | 2543 fps | 95.3% |
| Bofors RP15 | <<locked>> | 84% | 34,447 psi | 55% | 2306 fps | 95.2% |
| Bofors RP30 | <<locked>> | 92% | 36,463 psi | 58% | 2385 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 34,693 psi | 56% | 2313 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 46,775 psi | 75% | 2431 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 92% | 36,521 psi | 59% | 2343 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 49,269 psi | 79% | 2536 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,222 psi | 71% | 2418 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 90% | 42,453 psi | 68% | 2415 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 86% | 41,684 psi | 67% | 2402 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,581 psi | 63% | 2329 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 34,418 psi | 55% | 2375 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 44,440 psi | 71% | 2493 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,702 psi | 44% | 1417 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,024 psi | 82% | 2467 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,647 psi | 80% | 2454 fps | 99.7% |
| IMR 4350 | <<locked>> | 80% | 42,192 psi | 68% | 2369 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,182 psi | 77% | 2454 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 37,826 psi | 61% | 2310 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 84% | 41,539 psi | 67% | 2362 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 84% | 37,956 psi | 61% | 2385 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 45,687 psi | 73% | 2408 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 43,947 psi | 70% | 2398 fps | 99.3% |
| Lovex S071 | <<locked>> | 80% | 28,065 psi | 45% | 2096 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 42,061 psi | 67% | 2405 fps | 97.4% |
| Norma 217 | <<locked>> | 96% | 32,155 psi | 52% | 2323 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 33,779 psi | 54% | 2320 fps | 96.7% |
| Norma URP | <<locked>> | 80% | 42,946 psi | 69% | 2415 fps | 100% |
| Ramshot Grand | 61.9 gr | 82% | 36,709 psi | 59% | 2372 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 41,829 psi | 67% | 2415 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 82% | 31,952 psi | 51% | 2247 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,369 psi | 45% | 1453 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,169 psi | 82% | 2575 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,453 psi | 70% | 2448 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,742 psi | 67% | 2464 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 31,183 psi | 50% | 2293 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 42,641 psi | 68% | 2546 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 50,633 psi | 81% | 2480 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 37,913 psi | 61% | 2297 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 35,795 psi | 57% | 2297 fps | 96% |
| Rottweil R 907 | <<locked>> | 80% | 46,775 psi | 75% | 2431 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,687 psi | 73% | 2408 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 43,947 psi | 70% | 2398 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,025 psi | 83% | 2536 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,097 psi | 82% | 2369 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,541 psi | 71% | 2359 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,476 psi | 57% | 2293 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 50,575 psi | 81% | 2474 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 41,162 psi | 66% | 2339 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 39,784 psi | 64% | 2375 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,318 psi | 58% | 2283 fps | 97% |
| Unknown powder | <<locked>> | 80% | 46,006 psi | 74% | 2464 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 48,370 psi | 78% | 2408 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,353 psi | 71% | 2411 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 33,562 psi | 54% | 2221 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 43,685 psi | 70% | 2415 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 34,940 psi | 56% | 2297 fps | 99.6% |
| Vihtavuori N560 | <<locked>> | 84% | 39,015 psi | 63% | 2418 fps | 95% |
| Vihtavuori N565 | <<locked>> | 90% | 38,827 psi | 62% | 2408 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 98% | 44,063 psi | 71% | 2552 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,279 psi | 69% | 2379 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,269 psi | 79% | 2536 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,673 psi | 44% | 2244 fps | 99.8% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,056 psi | 58% | 2280 fps | 95.9% |
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 .300 Win. Mag. loaded with the .308 | 220gr | Nosler Ballistic Tip Hunting. Winchester StaBALL HD delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,726 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 (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:11.5 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. Accurate MAGPRO, Alliant Reloder-26, Ramshot Grand rank at the top here: for .300 Win. Mag. with the .308 | 220gr | Nosler Ballistic Tip Hunting they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 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.