Load Specifications
Bullet Manufacturer:North Fork
Bullet Weight:180 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.003"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:74 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:12.5
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 180gr | NorthFork Bonded Core bullet and 102 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, Hodgdon Superformance and Alliant Reloder-17.
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% | 56,144 psi | 86% | 2635 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 58,189 psi | 90% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 58,421 psi | 90% | 2703 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,753 psi | 87% | 2730 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,450 psi | 88% | 2717 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,814 psi | 64% | 2569 fps | 96.6% |
| Accurate 4064 | <<locked>> | 92% | 58,407 psi | 90% | 2756 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 58,523 psi | 90% | 2848 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 88% | 58,668 psi | 90% | 2789 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,231 psi | 87% | 2740 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,566 psi | 89% | 2736 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,056 psi | 85% | 2661 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 58,798 psi | 90% | 2917 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,260 psi | 87% | 2762 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,855 psi | 87% | 2782 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,840 psi | 86% | 2848 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 57,130 psi | 88% | 2884 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,871 psi | 61% | 2598 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,556 psi | 69% | 2756 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 58,784 psi | 90% | 2808 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 57,101 psi | 88% | 2779 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,913 psi | 88% | 2749 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,854 psi | 86% | 2671 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,348 psi | 88% | 2772 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,361 psi | 85% | 2815 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 58,334 psi | 90% | 2723 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 58,059 psi | 89% | 2795 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 98% | 57,392 psi | 88% | 2844 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 96% | 58,218 psi | 90% | 2808 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 86% | 55,651 psi | 86% | 2746 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,069 psi | 80% | 2726 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,100 psi | 85% | 2779 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 58,320 psi | 90% | 2884 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,578 psi | 55% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,811 psi | 87% | 2749 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,825 psi | 86% | 2726 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,564 psi | 85% | 2723 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,550 psi | 85% | 2703 fps | 98.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 57,145 psi | 88% | 2776 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,361 psi | 85% | 2733 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,027 psi | 85% | 2785 fps | 99.8% |
| IMR 4895 | <<locked>> | 90% | 58,320 psi | 90% | 2812 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,566 psi | 89% | 2736 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 58,088 psi | 89% | 2723 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 58,755 psi | 90% | 2762 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 58,030 psi | 89% | 2717 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,666 psi | 86% | 2720 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 58,218 psi | 90% | 2776 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 55,651 psi | 86% | 2759 fps | 98.5% |
| Norma 201 | <<locked>> | 88% | 57,406 psi | 88% | 2733 fps | 100% |
| Norma 202 | <<locked>> | 88% | 58,059 psi | 89% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,014 psi | 86% | 2772 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,914 psi | 89% | 2828 fps | 97.1% |
| Norma MRPᴾ | <<locked>> | 100% | 44,672 psi | 69% | 2713 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 57,319 psi | 88% | 2835 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 56,753 psi | 87% | 2799 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,869 psi | 86% | 2831 fps | 99.1% |
| Ramshot TAC | <<locked>> | 86% | 57,957 psi | 89% | 2762 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 57,638 psi | 89% | 2779 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 58,595 psi | 90% | 2743 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,129 psi | 56% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,029 psi | 88% | 2717 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 58,291 psi | 90% | 2776 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,493 psi | 88% | 2848 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 57,014 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,972 psi | 89% | 2867 fps | 99.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,740 psi | 89% | 2904 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 86% | 58,334 psi | 90% | 2710 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,928 psi | 89% | 2730 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,971 psi | 88% | 2769 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,913 psi | 88% | 2749 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 98% | 58,218 psi | 90% | 2776 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 88% | 58,755 psi | 90% | 2762 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,666 psi | 86% | 2720 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,651 psi | 86% | 2759 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 58,682 psi | 90% | 2831 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,420 psi | 87% | 2743 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,058 psi | 88% | 2762 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,535 psi | 85% | 2628 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,550 psi | 85% | 2625 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 58,813 psi | 90% | 2733 fps | 98.7% |
| Somchem S321 | <<locked>> | 82% | 55,434 psi | 85% | 2723 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 58,233 psi | 90% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,043 psi | 86% | 2733 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 57,159 psi | 88% | 2766 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,590 psi | 79% | 2782 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,066 psi | 74% | 2671 fps | 96.4% |
| Vihtavuori N130 | <<locked>> | 84% | 58,668 psi | 90% | 2628 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,796 psi | 86% | 2608 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,725 psi | 89% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 58,465 psi | 90% | 2710 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 58,508 psi | 90% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,101 psi | 86% | 2776 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 86% | 58,291 psi | 90% | 2740 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,739 psi | 87% | 2710 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,172 psi | 85% | 2785 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,990 psi | 68% | 2674 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,333 psi | 87% | 2756 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 58,305 psi | 90% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,725 psi | 89% | 2848 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,679 psi | 55% | 2605 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,942 psi | 88% | 2769 fps | 100% |
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% | 49,574 psi | 76% | 2549 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 54,549 psi | 84% | 2664 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,482 psi | 65% | 2484 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,603 psi | 76% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,396 psi | 68% | 2510 fps | 95.2% |
| Accurate 3100 | <<locked>> | 98% | 39,015 psi | 60% | 2516 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,190 psi | 62% | 2484 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,560 psi | 49% | 2365 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 45,788 psi | 70% | 2592 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,928 psi | 60% | 2448 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,819 psi | 74% | 2595 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,269 psi | 74% | 2572 fps | 100% |
| Alliant Power Pro 2000-MR | 50.4 gr | 80% | 41,727 psi | 64% | 2625 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,624 psi | 59% | 2467 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,495 psi | 64% | 2533 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,937 psi | 49% | 2375 fps | 95.1% |
| Alliant Reloder-17 | 49.6 gr | 80% | 33,344 psi | 51% | 2444 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,370 psi | 45% | 2339 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,895 psi | 52% | 2513 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,005 psi | 69% | 2598 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 38,319 psi | 59% | 2474 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 44,541 psi | 69% | 2549 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,588 psi | 76% | 2582 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,847 psi | 72% | 2618 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,866 psi | 80% | 2762 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 80% | 54,636 psi | 84% | 2677 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,088 psi | 60% | 2477 fps | 97% |
| Hodgdon H414 | <<locked>> | 88% | 41,394 psi | 64% | 2575 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 90% | 48,109 psi | 74% | 2651 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 46,224 psi | 71% | 2602 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,456 psi | 42% | 2228 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,221 psi | 65% | 2575 fps | 99.7% |
| Hodgdon Superformance | 59 gr | 90% | 43,947 psi | 68% | 2648 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 41% | 1476 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,193 psi | 68% | 2552 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 46,021 psi | 71% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,886 psi | 63% | 2480 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,424 psi | 67% | 2500 fps | 95.8% |
| IMR 4350 | <<locked>> | 92% | 44,614 psi | 69% | 2575 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,886 psi | 63% | 2480 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 32,692 psi | 50% | 2375 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 42,496 psi | 65% | 2559 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 47,819 psi | 74% | 2595 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 54,186 psi | 83% | 2674 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,991 psi | 69% | 2569 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,658 psi | 70% | 2526 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 40,857 psi | 63% | 2484 fps | 99.6% |
| Lovex S065 | <<locked>> | 82% | 35,679 psi | 55% | 2379 fps | 95% |
| Lovex S070 | <<locked>> | 88% | 40,944 psi | 63% | 2510 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 44,947 psi | 69% | 2546 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,121 psi | 69% | 2546 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,857 psi | 63% | 2520 fps | 99% |
| Norma 204 | <<locked>> | 96% | 50,720 psi | 78% | 2717 fps | 95.6% |
| Norma MRP | <<locked>> | 98% | 41,640 psi | 64% | 2654 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 31,850 psi | 49% | 2365 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 40,466 psi | 62% | 2536 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 37,869 psi | 58% | 2510 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 47,747 psi | 73% | 2605 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,239 psi | 73% | 2621 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,561 psi | 79% | 2641 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,818 psi | 41% | 1512 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,519 psi | 82% | 2667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,523 psi | 61% | 2461 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,671 psi | 67% | 2631 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,476 psi | 55% | 2507 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,431 psi | 51% | 2431 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 35,969 psi | 55% | 2497 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 48,791 psi | 75% | 2575 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,728 psi | 66% | 2500 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,158 psi | 56% | 2421 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 44,541 psi | 69% | 2549 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,679 psi | 55% | 2379 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,991 psi | 69% | 2569 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,857 psi | 63% | 2484 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 40,944 psi | 63% | 2510 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,941 psi | 57% | 2467 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,021 psi | 71% | 2579 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,164 psi | 68% | 2559 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,079 psi | 71% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,435 psi | 59% | 2365 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,395 psi | 65% | 2474 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 51,808 psi | 80% | 2674 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,847 psi | 71% | 2497 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,832 psi | 71% | 2579 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 36,985 psi | 57% | 2428 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 26,803 psi | 41% | 2267 fps | 96.4% |
| Somchem S385 | <<locked>> | 98% | 45,034 psi | 69% | 2618 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 51,938 psi | 80% | 2543 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,456 psi | 71% | 2484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,206 psi | 65% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,844 psi | 66% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,114 psi | 54% | 2365 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 33,373 psi | 51% | 2369 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 47,964 psi | 74% | 2592 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,162 psi | 63% | 2477 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,779 psi | 50% | 2369 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 88% | 29,660 psi | 46% | 2362 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,053 psi | 48% | 2297 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 47,747 psi | 73% | 2638 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,394 psi | 64% | 2575 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,760 psi | 43% | 2359 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,859 psi | 67% | 2569 fps | 99.6% |
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 102 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 180gr | NorthFork Bonded Core. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,917 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 180gr | NorthFork Bonded Core 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.