Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 220gr | Hornady ELD-X bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 52,794 psi | 85% | 2549 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,665 psi | 88% | 2579 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,839 psi | 88% | 2690 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 53,461 psi | 86% | 2500 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,317 psi | 89% | 2631 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 96% | 52,953 psi | 85% | 2631 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,295 psi | 71% | 2484 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,189 psi | 63% | 2448 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,462 psi | 87% | 2520 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,579 psi | 89% | 2631 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,982 psi | 85% | 2598 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,955 psi | 88% | 2625 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,217 psi | 90% | 2684 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,330 psi | 86% | 2605 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,182 psi | 79% | 2608 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,301 psi | 85% | 2687 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 55,463 psi | 89% | 2602 fps | 96.1% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,085 psi | 88% | 2667 fps | 99.5% |
| Bofors RP3 | <<locked>> | 82% | 55,332 psi | 89% | 2536 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,150 psi | 72% | 2549 fps | 97.7% |
| Bofors RP5 | <<locked>> | 98% | 56,217 psi | 90% | 2684 fps | 99.7% |
| Bofors RP7 | <<locked>> | 86% | 54,404 psi | 87% | 2536 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,733 psi | 78% | 2562 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 55,434 psi | 89% | 2556 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 53,069 psi | 85% | 2582 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,043 psi | 90% | 2592 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 94% | 53,171 psi | 85% | 2579 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,593 psi | 89% | 2615 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,825 psi | 90% | 2559 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,298 psi | 77% | 2664 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 52,968 psi | 85% | 2618 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,840 psi | 59% | 1572 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,304 psi | 90% | 2530 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,463 psi | 89% | 2569 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,941 psi | 90% | 2556 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 55,187 psi | 88% | 2575 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,520 psi | 87% | 2566 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 98% | 54,085 psi | 87% | 2661 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 56,159 psi | 90% | 2552 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,346 psi | 87% | 2552 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,227 psi | 81% | 2513 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,275 psi | 90% | 2621 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 34,693 psi | 56% | 2379 fps | 96.6% |
| Norma MRP | <<locked>> | 96% | 55,782 psi | 89% | 2703 fps | 100% |
| Norma URP | <<locked>> | 88% | 53,447 psi | 86% | 2569 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,868 psi | 88% | 2684 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 90% | 55,492 psi | 89% | 2621 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,547 psi | 84% | 2621 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,739 psi | 61% | 1611 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,114 psi | 88% | 2543 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,246 psi | 90% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,679 psi | 88% | 2605 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,779 psi | 85% | 2631 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,211 psi | 77% | 2657 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 55,448 psi | 89% | 2533 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,359 psi | 86% | 2552 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 54,302 psi | 87% | 2612 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 54,404 psi | 87% | 2536 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,159 psi | 90% | 2552 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,346 psi | 87% | 2552 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,374 psi | 86% | 2543 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,724 psi | 89% | 2415 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,521 psi | 89% | 2510 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,853 psi | 86% | 2608 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 55,259 psi | 89% | 2530 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,984 psi | 88% | 2552 fps | 98.1% |
| Somchem S365 | <<locked>> | 90% | 53,069 psi | 85% | 2569 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,926 psi | 88% | 2589 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 86% | 56,333 psi | 90% | 2503 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,216 psi | 89% | 2559 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,244 psi | 87% | 2569 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 54,331 psi | 87% | 2566 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,825 psi | 90% | 2628 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,854 psi | 90% | 2700 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,372 psi | 82% | 2621 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,476 psi | 87% | 2523 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,069 psi | 85% | 2582 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,330 psi | 86% | 2726 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,708 psi | 88% | 2582 fps | 99.4% |
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% | 30,951 psi | 50% | 2162 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 41,771 psi | 67% | 2385 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 44,469 psi | 71% | 2520 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 50,096 psi | 80% | 2454 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,099 psi | 56% | 2270 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 88% | 40,756 psi | 65% | 2418 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 38,827 psi | 62% | 2375 fps | 95% |
| ADI AR 2225 | <<locked>> | 94% | 32,430 psi | 52% | 2287 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,024 psi | 82% | 2474 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,234 psi | 65% | 2392 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,108 psi | 74% | 2500 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 35,027 psi | 56% | 2270 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,273 psi | 57% | 2316 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,878 psi | 48% | 2192 fps | 99.3% |
| Alliant Reloder-25 | <<locked>> | 82% | 27,876 psi | 45% | 2152 fps | 95.7% |
| Alliant Reloder-26 | 58 gr | 80% | 32,068 psi | 51% | 2303 fps | 98.4% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 52,025 psi | 83% | 2549 fps | 95.3% |
| Bofors RP15 | <<locked>> | 86% | 34,998 psi | 56% | 2310 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 51,764 psi | 83% | 2490 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 37,159 psi | 60% | 2392 fps | 95.3% |
| Bofors RP5 | <<locked>> | 84% | 35,273 psi | 57% | 2316 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 45,121 psi | 72% | 2388 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 37,260 psi | 60% | 2346 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 51,924 psi | 83% | 2507 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,482 psi | 70% | 2428 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 46,282 psi | 74% | 2441 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 88% | 43,598 psi | 70% | 2425 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 42,743 psi | 69% | 2408 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,985 psi | 61% | 2293 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 35,012 psi | 56% | 2382 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 42,511 psi | 68% | 2451 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,659 psi | 44% | 1401 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,736 psi | 85% | 2480 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,625 psi | 65% | 2329 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,557 psi | 75% | 2415 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 40,016 psi | 64% | 2343 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,714 psi | 68% | 2372 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 88% | 39,044 psi | 63% | 2395 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 44,208 psi | 71% | 2372 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 42,322 psi | 68% | 2359 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 28,543 psi | 46% | 2103 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 40,364 psi | 65% | 2362 fps | 96.8% |
| Norma 217 | <<locked>> | 98% | 32,619 psi | 52% | 2326 fps | 95.6% |
| Norma MRP | 56.3 gr | 80% | 32,227 psi | 52% | 2274 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 41,176 psi | 66% | 2375 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 38,580 psi | 62% | 2398 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 40,059 psi | 64% | 2372 fps | 99% |
| Ramshot Magnum | <<locked>> | 88% | 34,200 psi | 55% | 2293 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,152 psi | 45% | 1434 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,706 psi | 83% | 2497 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,936 psi | 78% | 2539 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,539 psi | 67% | 2405 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,856 psi | 64% | 2415 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 31,821 psi | 51% | 2300 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 48,718 psi | 78% | 2444 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 38,986 psi | 63% | 2306 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 34,243 psi | 55% | 2254 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 45,121 psi | 72% | 2388 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,208 psi | 71% | 2372 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 42,322 psi | 68% | 2359 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,995 psi | 80% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,458 psi | 79% | 2339 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,047 psi | 69% | 2323 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 33,924 psi | 54% | 2251 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 48,979 psi | 79% | 2441 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,206 psi | 68% | 2349 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 37,927 psi | 61% | 2339 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,853 psi | 56% | 2244 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,615 psi | 75% | 2372 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,612 psi | 68% | 2372 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 34,287 psi | 55% | 2228 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 42,047 psi | 67% | 2379 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 33,388 psi | 54% | 2257 fps | 99.2% |
| Vihtavuori N560 | 60.5 gr | 86% | 39,885 psi | 64% | 2425 fps | 95% |
| Vihtavuori N565 | <<locked>> | 92% | 39,349 psi | 63% | 2411 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,495 psi | 67% | 2343 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,685 psi | 70% | 2434 fps | 99% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,397 psi | 42% | 2195 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,260 psi | 58% | 2274 fps | 95.7% |
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 79 powders for .300 Win. Mag. loaded with the .308 | 220gr | Hornady ELD-X. Winchester StaBALL HD delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,726 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:10.0 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for .300 Win. Mag. with the .308 | 220gr | Hornady ELD-X 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.