Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 125gr | Nosler AccuBond bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR and ReloadSwiss RS 60.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2015 | <<locked>> | 84% | 55,274 psi | 89% | 3222 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,969 psi | 87% | 3235 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,782 psi | 89% | 3307 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 54,012 psi | 87% | 3284 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,244 psi | 87% | 3356 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 86% | 54,447 psi | 87% | 3314 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 92% | 55,506 psi | 89% | 3310 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,272 psi | 85% | 3261 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 84% | 53,925 psi | 86% | 3248 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,201 psi | 87% | 3432 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,521 psi | 89% | 3337 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,086 psi | 90% | 3360 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,317 psi | 89% | 3422 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 52,968 psi | 85% | 3399 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,624 psi | 64% | 3094 fps | 97.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,788 psi | 72% | 3274 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,389 psi | 87% | 3320 fps | 98.8% |
| Bofors RP3 | <<locked>> | 92% | 56,347 psi | 90% | 3353 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,114 psi | 88% | 3251 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,779 psi | 85% | 3284 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,723 psi | 88% | 3396 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 90% | 53,635 psi | 86% | 3297 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 96% | 53,548 psi | 86% | 3346 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 86% | 55,042 psi | 88% | 3330 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,532 psi | 83% | 3281 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,505 psi | 87% | 3356 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,302 psi | 57% | 2100 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,289 psi | 90% | 3330 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 54,926 psi | 88% | 3320 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,911 psi | 88% | 3291 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,042 psi | 88% | 3264 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,737 psi | 88% | 3284 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,708 psi | 88% | 3346 fps | 98.8% |
| IMR 4895 | <<locked>> | 88% | 53,983 psi | 87% | 3333 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 84% | 53,272 psi | 85% | 3261 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 86% | 54,259 psi | 87% | 3291 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,940 psi | 86% | 3238 fps | 99.4% |
| Lovex S062 | <<locked>> | 90% | 54,897 psi | 88% | 3294 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 54,157 psi | 87% | 3278 fps | 97.5% |
| Lovex S070 | <<locked>> | 98% | 55,332 psi | 89% | 3317 fps | 96.7% |
| Norma 201 | <<locked>> | 86% | 53,069 psi | 85% | 3255 fps | 99.8% |
| Norma 202 | <<locked>> | 86% | 53,664 psi | 86% | 3261 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,259 psi | 89% | 3343 fps | 99.5% |
| Norma URP | <<locked>> | 98% | 53,287 psi | 85% | 3343 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 90% | 56,101 psi | 90% | 3369 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,796 psi | 89% | 3389 fps | 97.5% |
| Ramshot TAC | <<locked>> | 84% | 53,824 psi | 86% | 3271 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,476 psi | 86% | 3294 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,157 psi | 87% | 3255 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,752 psi | 57% | 2149 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,115 psi | 90% | 3301 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,012 psi | 87% | 3274 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 52,852 psi | 85% | 3366 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 52,692 psi | 84% | 3406 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,085 psi | 87% | 3376 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,795 psi | 86% | 3402 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 84% | 53,998 psi | 87% | 3245 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,737 psi | 86% | 3255 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 56,115 psi | 90% | 3343 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,157 psi | 87% | 3278 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,259 psi | 87% | 3291 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,897 psi | 88% | 3294 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 55,332 psi | 89% | 3317 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,505 psi | 87% | 3346 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,970 psi | 90% | 3307 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 52,852 psi | 85% | 3274 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,563 psi | 87% | 3202 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,824 psi | 88% | 3192 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,665 psi | 88% | 3225 fps | 96.2% |
| Somchem S321 | <<locked>> | 82% | 54,636 psi | 88% | 3294 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 53,954 psi | 87% | 3192 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,492 psi | 89% | 3301 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 56,333 psi | 90% | 3340 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,213 psi | 82% | 3343 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,186 psi | 87% | 3166 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,781 psi | 88% | 3186 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,200 psi | 85% | 3225 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,331 psi | 87% | 3238 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,447 psi | 87% | 3261 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,825 psi | 90% | 3343 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 84% | 53,708 psi | 86% | 3261 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 56,014 psi | 90% | 3281 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,926 psi | 88% | 3343 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,468 psi | 70% | 3186 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 52,576 psi | 84% | 3255 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 53,896 psi | 86% | 3314 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 53,548 psi | 86% | 3346 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,895 psi | 85% | 3284 fps | 99.6% |
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 2015 | <<locked>> | 80% | 48,602 psi | 78% | 3110 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,510 psi | 67% | 3012 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,559 psi | 78% | 3182 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 39,233 psi | 63% | 2995 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 40,698 psi | 65% | 3081 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 44,933 psi | 72% | 3127 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 38,159 psi | 61% | 2946 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,963 psi | 75% | 3140 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 47,253 psi | 76% | 3140 fps | 100% |
| Alliant Power Pro 2000-MR | 65.3 gr | 80% | 40,959 psi | 66% | 3140 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,811 psi | 61% | 2969 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,654 psi | 65% | 3041 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 40,205 psi | 64% | 3094 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 82% | 35,085 psi | 56% | 2976 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 34,867 psi | 56% | 2963 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 41,553 psi | 67% | 3192 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,179 psi | 71% | 3120 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 37,434 psi | 60% | 2966 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,762 psi | 78% | 3136 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,079 psi | 74% | 3159 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,821 psi | 81% | 3323 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 41,075 psi | 66% | 3038 fps | 95% |
| Hodgdon H414 | <<locked>> | 94% | 49,966 psi | 80% | 3274 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 45,353 psi | 73% | 3140 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 34,766 psi | 56% | 2907 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,336 psi | 66% | 3094 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,179 psi | 42% | 1880 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,482 psi | 70% | 3084 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 44,860 psi | 72% | 3143 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,030 psi | 64% | 2986 fps | 96.3% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,547 psi | 83% | 3199 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,474 psi | 83% | 3222 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 39,218 psi | 63% | 3028 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 41,640 psi | 67% | 3081 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 46,963 psi | 75% | 3140 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 44,063 psi | 71% | 3104 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 44,802 psi | 72% | 3058 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 39,943 psi | 64% | 2992 fps | 98% |
| Lovex S065 | <<locked>> | 90% | 44,933 psi | 72% | 3094 fps | 95.3% |
| Lovex S070 | <<locked>> | 94% | 48,631 psi | 78% | 3189 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 44,063 psi | 71% | 3077 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 44,280 psi | 71% | 3091 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 40,016 psi | 64% | 3028 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 40,785 psi | 65% | 3081 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,682 psi | 64% | 3035 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 94% | 45,701 psi | 73% | 3192 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 47,123 psi | 76% | 3136 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,615 psi | 75% | 3159 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,763 psi | 81% | 3192 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,498 psi | 42% | 1923 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,692 psi | 84% | 3241 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 47,297 psi | 76% | 3146 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,815 psi | 69% | 3159 fps | 96.9% |
| ReloadSwiss RS 60 | 64.3 gr | 80% | 34,867 psi | 56% | 2989 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 40,538 psi | 65% | 3097 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 43,598 psi | 70% | 3179 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 47,848 psi | 77% | 3133 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,858 psi | 67% | 3018 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 35,201 psi | 56% | 2900 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,933 psi | 72% | 3094 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,063 psi | 71% | 3104 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 39,943 psi | 64% | 2992 fps | 98% |
| Shooters World SW4350 | <<locked>> | 94% | 48,631 psi | 78% | 3189 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,274 psi | 58% | 2956 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,295 psi | 73% | 3104 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,468 psi | 70% | 3084 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,295 psi | 73% | 3035 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,724 psi | 60% | 2871 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 51,256 psi | 82% | 3163 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 50,952 psi | 82% | 3228 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 45,005 psi | 72% | 3035 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,962 psi | 72% | 3100 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 36,158 psi | 58% | 2913 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 31,894 psi | 51% | 2887 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 51,082 psi | 82% | 3117 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,614 psi | 73% | 3031 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,307 psi | 66% | 3012 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,872 psi | 67% | 3009 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 34,301 psi | 55% | 2841 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 88% | 39,856 psi | 64% | 3022 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 47,007 psi | 75% | 3133 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 40,466 psi | 65% | 2992 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 42,032 psi | 67% | 3084 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 37,942 psi | 61% | 3054 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 34,925 psi | 56% | 2867 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 46,760 psi | 75% | 3182 fps | 99.7% |
| Winchester 760 | <<locked>> | 94% | 50,183 psi | 80% | 3281 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,004 psi | 69% | 3087 fps | 98.1% |
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 88 powders for .300 Win. Mag. loaded with the .308 | 125gr | Nosler AccuBond. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,432 fps; across all powders the maximum-charge window runs from 2,100 fps to 3,432 fps. Alliant Reloder-16 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 (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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. IMR 4350, Alliant Power Pro 2000-MR, ReloadSwiss RS 60 rank at the top here: for .300 Win. Mag. with the .308 | 125gr | Nosler AccuBond 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.