Load Specifications
Load data in caliber .300 Rem. SA Ultra Mag. with .310 | 125gr | Speer HP TNT bullet and 89 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, ReloadSwiss RS 52 and Hodgdon LEVERevolution.
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>> | 92% | 58,668 psi | 90% | 3209 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 55,230 psi | 85% | 3251 fps | 97.8% |
| Accurate 2230 | <<locked>> | 82% | 56,449 psi | 87% | 3264 fps | 98.3% |
| Accurate 2460 | <<locked>> | 88% | 57,290 psi | 88% | 3232 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 55,956 psi | 86% | 3215 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 55,216 psi | 85% | 3235 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 55,361 psi | 85% | 3251 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 58,450 psi | 90% | 3153 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 55,419 psi | 85% | 3127 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 57,827 psi | 89% | 3294 fps | 98.9% |
| ADI AR 2207 | <<locked>> | 82% | 56,405 psi | 87% | 3130 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 58,668 psi | 90% | 3281 fps | 98.5% |
| ADI AR 2219 | <<locked>> | 84% | 55,666 psi | 86% | 3232 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 56,985 psi | 88% | 3248 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 92% | 56,463 psi | 87% | 3238 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 58,566 psi | 90% | 3373 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 57,624 psi | 89% | 3409 fps | 98.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 57,725 psi | 89% | 3304 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 88% | 58,233 psi | 90% | 3222 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 55,158 psi | 85% | 3268 fps | 98.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 51,488 psi | 79% | 3294 fps | 98.6% |
| Alliant Reloder-7 | <<locked>> | 82% | 57,464 psi | 88% | 3150 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 57,783 psi | 89% | 3143 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 57,928 psi | 89% | 3304 fps | 98.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 58,566 psi | 90% | 3320 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 90% | 55,854 psi | 86% | 3186 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 92% | 56,057 psi | 86% | 3278 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 90% | 57,682 psi | 89% | 3379 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 88% | 57,725 psi | 89% | 3264 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 55,332 psi | 85% | 3232 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 56,478 psi | 87% | 3271 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 82% | 56,985 psi | 88% | 3159 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 58,305 psi | 90% | 3307 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 56,942 psi | 88% | 3333 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 53% | 1988 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 56,304 psi | 87% | 3255 fps | 99.1% |
| IMR 3031 | <<locked>> | 94% | 57,261 psi | 88% | 3304 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 58,204 psi | 90% | 3268 fps | 98.6% |
| IMR 4198 | <<locked>> | 88% | 58,421 psi | 90% | 3179 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 56,550 psi | 87% | 3307 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 92% | 56,985 psi | 88% | 3248 fps | 99.5% |
| Lovex D073.4 | <<locked>> | 82% | 57,072 psi | 88% | 3245 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 57,464 psi | 88% | 3238 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 94% | 57,000 psi | 88% | 3274 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 57,754 psi | 89% | 3219 fps | 98.9% |
| Lovex S062 | <<locked>> | 98% | 57,406 psi | 88% | 3264 fps | 99.6% |
| Norma 200 | <<locked>> | 84% | 58,334 psi | 90% | 3192 fps | 100% |
| Norma 201 | <<locked>> | 94% | 56,405 psi | 87% | 3238 fps | 99.5% |
| Norma 202 | <<locked>> | 94% | 56,710 psi | 87% | 3248 fps | 100% |
| Norma 203B | <<locked>> | 98% | 57,957 psi | 89% | 3317 fps | 99% |
| Ramshot Big Game | <<locked>> | 96% | 55,027 psi | 85% | 3281 fps | 98.5% |
| Ramshot TAC | <<locked>> | 92% | 57,928 psi | 89% | 3255 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 92% | 57,072 psi | 88% | 3281 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 88% | 55,027 psi | 85% | 3192 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,679 psi | 53% | 2041 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 56,927 psi | 88% | 3241 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 54,998 psi | 85% | 3340 fps | 98.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,085 psi | 85% | 3376 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 57,217 psi | 88% | 3228 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 56,478 psi | 87% | 3228 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 54,128 psi | 83% | 3241 fps | 99% |
| Shooters World AR Plus | <<locked>> | 82% | 57,072 psi | 88% | 3245 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 57,000 psi | 88% | 3274 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 57,406 psi | 88% | 3264 fps | 99.6% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 56,840 psi | 87% | 3202 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 58,407 psi | 90% | 2890 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 56,101 psi | 86% | 3238 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 56,492 psi | 87% | 3314 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 55,927 psi | 86% | 3196 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 55,840 psi | 86% | 3225 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 56,173 psi | 86% | 3258 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 58,552 psi | 90% | 3186 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 58,175 psi | 89% | 3173 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 58,581 psi | 90% | 3291 fps | 99.8% |
| Somchem S335 | <<locked>> | 94% | 57,638 psi | 89% | 3182 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 55,216 psi | 85% | 3222 fps | 98.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,114 psi | 85% | 3248 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,639 psi | 61% | 3038 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 82% | 56,188 psi | 86% | 3074 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 58,131 psi | 89% | 3159 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 58,276 psi | 90% | 3173 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 55,376 psi | 85% | 3205 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 57,377 psi | 88% | 3225 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,084 psi | 82% | 3173 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 92% | 57,740 psi | 89% | 3251 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 96% | 55,448 psi | 85% | 3212 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,515 psi | 75% | 3097 fps | 98% |
| Winchester 748 | <<locked>> | 92% | 56,884 psi | 88% | 3297 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 94% | 55,970 psi | 86% | 3268 fps | 99.1% |
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% | 40,132 psi | 62% | 2890 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 51,590 psi | 79% | 3186 fps | 97.2% |
| Accurate 2230 | <<locked>> | 80% | 52,431 psi | 81% | 3196 fps | 97.7% |
| Accurate 2460 | <<locked>> | 80% | 43,627 psi | 67% | 2992 fps | 99.2% |
| Accurate 2495 | <<locked>> | 80% | 32,663 psi | 50% | 2769 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 39,044 psi | 60% | 2930 fps | 98.1% |
| Accurate 4064 | <<locked>> | 80% | 30,864 psi | 47% | 2736 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 80% | 48,762 psi | 75% | 2999 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,066 psi | 75% | 3018 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 39,421 psi | 61% | 2930 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 52,982 psi | 82% | 3081 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 43,149 psi | 66% | 2992 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 48,559 psi | 75% | 3114 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,856 psi | 60% | 2894 fps | 96.3% |
| Alliant AR-Comp | <<locked>> | 80% | 37,608 psi | 58% | 2920 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,773 psi | 69% | 3114 fps | 97.2% |
| Alliant Power Pro 2000-MR | 60.4 gr | 90% | 46,731 psi | 72% | 3192 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 36,927 psi | 57% | 2890 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,585 psi | 70% | 3015 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 42,772 psi | 66% | 3028 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 39,305 psi | 60% | 3022 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 54,070 psi | 83% | 3100 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 47,747 psi | 73% | 2986 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 43,947 psi | 68% | 3045 fps | 95.1% |
| Bofors RP3 | <<locked>> | 86% | 36,405 psi | 56% | 2890 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,147 psi | 63% | 2904 fps | 97.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,985 psi | 57% | 2897 fps | 96.4% |
| Hodgdon CFE223 | <<locked>> | 82% | 43,685 psi | 67% | 3110 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 44,382 psi | 68% | 3035 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 45,179 psi | 70% | 3051 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 49,327 psi | 76% | 3143 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 53,592 psi | 82% | 3107 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 39,697 psi | 61% | 2946 fps | 95.8% |
| Hodgdon LEVERevolution | 55.3 gr | 84% | 38,014 psi | 58% | 2953 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,440 psi | 39% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 38,218 psi | 59% | 2890 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 35,766 psi | 55% | 2900 fps | 99.3% |
| IMR 4064 | <<locked>> | 88% | 42,409 psi | 65% | 2972 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 46,166 psi | 71% | 2986 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 40,944 psi | 63% | 3002 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 38,856 psi | 60% | 2894 fps | 96.3% |
| Lovex D073.4 | <<locked>> | 80% | 53,040 psi | 82% | 3179 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 43,569 psi | 67% | 2992 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 80% | 35,215 psi | 54% | 2848 fps | 97% |
| Lovex S060 | <<locked>> | 82% | 40,263 psi | 62% | 2881 fps | 95.3% |
| Lovex S062 | <<locked>> | 82% | 34,780 psi | 54% | 2805 fps | 95% |
| Norma 200 | <<locked>> | 80% | 51,387 psi | 79% | 3091 fps | 100% |
| Norma 201 | <<locked>> | 80% | 36,172 psi | 56% | 2825 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 36,187 psi | 56% | 2848 fps | 98% |
| Norma 203B | <<locked>> | 86% | 39,320 psi | 60% | 2953 fps | 95% |
| Ramshot Big Game | <<locked>> | 88% | 41,800 psi | 64% | 3022 fps | 95.5% |
| Ramshot TAC | <<locked>> | 88% | 50,792 psi | 78% | 3127 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 40,524 psi | 62% | 2963 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,308 psi | 65% | 2946 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,556 psi | 39% | 1824 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,714 psi | 67% | 3002 fps | 98.7% |
| ReloadSwiss RS 52 | 56 gr | 86% | 41,640 psi | 64% | 3074 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 34,505 psi | 53% | 2907 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 39,856 psi | 61% | 2904 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 36,637 psi | 56% | 2831 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 90% | 38,885 psi | 60% | 2943 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 80% | 53,040 psi | 82% | 3179 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,215 psi | 54% | 2848 fps | 97% |
| Shooters World Precision | <<locked>> | 82% | 34,780 psi | 54% | 2805 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,282 psi | 71% | 3015 fps | 97.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 52,591 psi | 81% | 2812 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,023 psi | 75% | 3117 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 40,654 psi | 63% | 3005 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,238 psi | 71% | 3035 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 48,573 psi | 75% | 3097 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 40,611 psi | 62% | 2953 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,942 psi | 58% | 2812 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,024 psi | 48% | 2648 fps | 97.5% |
| Somchem S321 | <<locked>> | 80% | 41,843 psi | 64% | 2982 fps | 97.5% |
| Somchem S335 | <<locked>> | 80% | 37,347 psi | 57% | 2808 fps | 98.9% |
| Somchem S341 | <<locked>> | 84% | 41,974 psi | 65% | 2972 fps | 95.7% |
| Somchem S355 | <<locked>> | 88% | 37,652 psi | 58% | 2897 fps | 95% |
| Somchem S365 | <<locked>> | 96% | 34,867 psi | 54% | 2910 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 52,866 psi | 81% | 3025 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 43,018 psi | 66% | 2913 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,956 psi | 58% | 2818 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 33,156 psi | 51% | 2779 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 34,214 psi | 53% | 2776 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 86% | 33,547 psi | 52% | 2769 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 38,827 psi | 60% | 2890 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 80% | 32,909 psi | 51% | 2753 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 39,784 psi | 61% | 2913 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 37,695 psi | 58% | 2927 fps | 97% |
| Winchester StaBALL Match | <<locked>> | 84% | 39,711 psi | 61% | 2953 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 89 powders for .300 Rem. SA Ultra Mag. loaded with the .310 | 125gr | Speer HP TNT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,409 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,409 fps. ADI AR 2208 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. ADI AR 2208, Alliant Reloder- TS 15.5, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .300 Rem. SA Ultra Mag. with the .310 | 125gr | Speer HP TNT 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.