Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:206 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 | 206gr | Peregrine Backup (VRG-2) bullet and 112 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, 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>> | 82% | 56,202 psi | 86% | 2457 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 58,595 psi | 90% | 2526 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,000 psi | 88% | 2552 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,638 psi | 89% | 2559 fps | 99% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,948 psi | 71% | 2487 fps | 98.8% |
| Accurate 4064 | <<locked>> | 88% | 55,187 psi | 85% | 2533 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,608 psi | 86% | 2635 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 50,270 psi | 77% | 2661 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 84% | 55,332 psi | 85% | 2566 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,623 psi | 87% | 2575 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,563 psi | 82% | 2625 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,769 psi | 89% | 2562 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,753 psi | 86% | 2487 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,651 psi | 86% | 2690 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,606 psi | 82% | 2625 fps | 98% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,606 psi | 82% | 2625 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,956 psi | 88% | 2592 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,464 psi | 88% | 2615 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,840 psi | 87% | 2687 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 58,204 psi | 90% | 2713 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,765 psi | 81% | 2615 fps | 97.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,151 psi | 71% | 2559 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,482 psi | 67% | 2510 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,971 psi | 58% | 2428 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,008 psi | 75% | 2674 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,448 psi | 85% | 2592 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 57,595 psi | 89% | 2608 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,151 psi | 71% | 2559 fps | 96.8% |
| Bofors RP7 | <<locked>> | 94% | 57,464 psi | 88% | 2595 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,709 psi | 86% | 2497 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,464 psi | 88% | 2595 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 58,479 psi | 90% | 2628 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 58,581 psi | 90% | 2690 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 92% | 55,288 psi | 85% | 2602 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 84% | 55,970 psi | 86% | 2575 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,029 psi | 88% | 2615 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,840 psi | 86% | 2612 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,984 psi | 85% | 2677 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,984 psi | 55% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,159 psi | 88% | 2579 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,579 psi | 87% | 2552 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,217 psi | 86% | 2559 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,695 psi | 86% | 2546 fps | 99.3% |
| IMR 4350 | <<locked>> | 98% | 57,986 psi | 89% | 2625 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,840 psi | 86% | 2575 fps | 99.3% |
| IMR 4831 | <<locked>> | 98% | 56,173 psi | 86% | 2625 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,216 psi | 85% | 2592 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 53,301 psi | 82% | 2559 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 84% | 57,769 psi | 89% | 2562 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,347 psi | 85% | 2539 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 58,030 psi | 89% | 2543 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,028 psi | 86% | 2549 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 58,624 psi | 90% | 2612 fps | 99.9% |
| Lovex S070 | <<locked>> | 96% | 56,202 psi | 86% | 2602 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,971 psi | 58% | 2349 fps | 97.2% |
| Norma 201 | <<locked>> | 86% | 57,493 psi | 88% | 2559 fps | 100% |
| Norma 202 | <<locked>> | 86% | 58,392 psi | 90% | 2556 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,652 psi | 87% | 2602 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,187 psi | 85% | 2625 fps | 98.1% |
| Norma MRPᴾ | <<locked>> | 100% | 48,733 psi | 75% | 2635 fps | 98.6% |
| Norma URP | <<locked>> | 98% | 58,436 psi | 90% | 2671 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 57,363 psi | 88% | 2628 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 57,276 psi | 88% | 2677 fps | 99.9% |
| Ramshot TAC | <<locked>> | 84% | 58,117 psi | 89% | 2598 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 84% | 58,030 psi | 89% | 2608 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 58,552 psi | 90% | 2569 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,332 psi | 56% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 58,436 psi | 90% | 2612 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 58,305 psi | 90% | 2677 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,957 psi | 89% | 2707 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,506 psi | 85% | 2661 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 58,494 psi | 90% | 2740 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 58,262 psi | 90% | 2533 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 58,001 psi | 89% | 2556 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,464 psi | 88% | 2598 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,405 psi | 85% | 2595 fps | 97.2% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,517 psi | 79% | 2598 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 94% | 57,464 psi | 88% | 2595 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 58,624 psi | 90% | 2612 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,347 psi | 85% | 2539 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,028 psi | 86% | 2549 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,202 psi | 86% | 2602 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,579 psi | 86% | 2612 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,652 psi | 87% | 2575 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,363 psi | 88% | 2589 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,535 psi | 85% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,028 psi | 86% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,303 psi | 85% | 2526 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,039 psi | 79% | 2595 fps | 97.8% |
| Somchem S335 | <<locked>> | 86% | 58,204 psi | 90% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,492 psi | 87% | 2566 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,522 psi | 88% | 2595 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 57,522 psi | 88% | 2595 fps | 96.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,768 psi | 87% | 2667 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,228 psi | 80% | 2579 fps | 98.6% |
| Vihtavuori N130 | <<locked>> | 82% | 58,624 psi | 90% | 2451 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,970 psi | 86% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 58,392 psi | 90% | 2516 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,201 psi | 85% | 2493 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,477 psi | 85% | 2530 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,101 psi | 88% | 2618 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,034 psi | 69% | 2457 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 84% | 58,537 psi | 90% | 2566 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,971 psi | 88% | 2539 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,898 psi | 86% | 2621 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,298 psi | 74% | 2575 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,116 psi | 88% | 2595 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,071 psi | 85% | 2562 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,114 psi | 85% | 2641 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,914 psi | 60% | 2546 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,450 psi | 88% | 2598 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,008 psi | 75% | 2523 fps | 97.1% |
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% | 52,866 psi | 81% | 2418 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,252 psi | 70% | 2359 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,011 psi | 82% | 2503 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,179 psi | 68% | 2359 fps | 96.8% |
| Accurate 3100 | <<locked>> | 90% | 32,329 psi | 50% | 2234 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 42,873 psi | 66% | 2365 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,850 psi | 49% | 2231 fps | 97% |
| Accurate High Country | <<locked>> | 96% | 43,787 psi | 67% | 2552 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 48,863 psi | 75% | 2477 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,466 psi | 64% | 2346 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 41,379 psi | 64% | 2418 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,039 psi | 79% | 2474 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,301 psi | 80% | 2444 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,875 psi | 69% | 2526 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 41,278 psi | 64% | 2418 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 41,278 psi | 64% | 2418 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,350 psi | 64% | 2362 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,396 psi | 68% | 2425 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,140 psi | 49% | 2247 fps | 97.2% |
| Alliant Reloder-17 | 49 gr | 80% | 35,940 psi | 55% | 2359 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 40,785 psi | 63% | 2411 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 40,364 psi | 62% | 2451 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 82% | 24,526 psi | 38% | 2067 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 94% | 31,604 psi | 49% | 2270 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 86% | 29,791 psi | 46% | 2274 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,225 psi | 74% | 2487 fps | 99.9% |
| Bofors RP3 | <<locked>> | 80% | 41,191 psi | 63% | 2372 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 40,364 psi | 62% | 2451 fps | 95.1% |
| Bofors RP7 | <<locked>> | 82% | 39,305 psi | 60% | 2303 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,533 psi | 81% | 2457 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,154 psi | 77% | 2500 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,901 psi | 64% | 2379 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 36,622 psi | 56% | 2329 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 82% | 40,016 psi | 62% | 2352 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 49,356 psi | 76% | 2484 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,515 psi | 45% | 2156 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,745 psi | 70% | 2470 fps | 100% |
| Hodgdon Superformance | 54.4 gr | 84% | 38,464 psi | 59% | 2395 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 41% | 1381 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,224 psi | 73% | 2438 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,559 psi | 76% | 2464 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,555 psi | 67% | 2372 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,861 psi | 71% | 2395 fps | 97.9% |
| IMR 4350 | <<locked>> | 84% | 37,318 psi | 57% | 2290 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,305 psi | 59% | 2283 fps | 96% |
| IMR 4831 | <<locked>> | 80% | 31,009 psi | 48% | 2195 fps | 96.7% |
| IMR 4895 | <<locked>> | 80% | 45,542 psi | 70% | 2451 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 50,212 psi | 77% | 2513 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 51,039 psi | 79% | 2474 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,356 psi | 74% | 2451 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,356 psi | 74% | 2411 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,511 psi | 67% | 2372 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,766 psi | 55% | 2241 fps | 96.7% |
| Lovex S070 | <<locked>> | 82% | 36,071 psi | 55% | 2264 fps | 95.7% |
| Lovex S071 | <<locked>> | 96% | 33,315 psi | 51% | 2254 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 47,703 psi | 73% | 2425 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,153 psi | 74% | 2425 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,787 psi | 67% | 2415 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 41,829 psi | 64% | 2411 fps | 95.1% |
| Norma MRP | <<locked>> | 92% | 36,985 psi | 57% | 2411 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 32,256 psi | 50% | 2234 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 80% | 43,569 psi | 67% | 2431 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 33,460 psi | 51% | 2270 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 50,763 psi | 78% | 2497 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,749 psi | 78% | 2510 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 54,708 psi | 84% | 2520 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 42% | 1414 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,250 psi | 65% | 2365 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,456 psi | 73% | 2526 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,319 psi | 59% | 2411 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,575 psi | 49% | 2244 fps | 96.5% |
| ReloadSwiss RS 70 | 49.7 gr | 80% | 31,357 psi | 48% | 2247 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 51,750 psi | 80% | 2448 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,324 psi | 70% | 2382 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,798 psi | 60% | 2323 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 45,847 psi | 71% | 2451 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 94% | 42,090 psi | 65% | 2444 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 82% | 39,305 psi | 60% | 2303 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,766 psi | 55% | 2241 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,356 psi | 74% | 2451 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,511 psi | 67% | 2372 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,071 psi | 55% | 2264 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,900 psi | 61% | 2372 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,371 psi | 76% | 2474 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,282 psi | 73% | 2451 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,037 psi | 75% | 2369 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,089 psi | 63% | 2254 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 34,925 psi | 54% | 2188 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 41,684 psi | 64% | 2438 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 48,544 psi | 75% | 2369 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,052 psi | 75% | 2464 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,508 psi | 61% | 2326 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 50,256 psi | 77% | 2497 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 28,761 psi | 44% | 2188 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 37,478 psi | 58% | 2329 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 55,187 psi | 85% | 2411 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 49,603 psi | 76% | 2359 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,440 psi | 70% | 2356 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,803 psi | 70% | 2369 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,594 psi | 58% | 2264 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 33,634 psi | 52% | 2234 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 96% | 39,334 psi | 61% | 2356 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 51,242 psi | 79% | 2470 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,005 psi | 68% | 2362 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,040 psi | 51% | 2234 fps | 96.9% |
| Vihtavuori N555 | <<locked>> | 82% | 26,353 psi | 41% | 2133 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,025 psi | 51% | 2211 fps | 99% |
| Winchester 748 | <<locked>> | 80% | 51,517 psi | 79% | 2516 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 36,796 psi | 57% | 2333 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 86% | 24,395 psi | 38% | 2136 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,949 psi | 72% | 2454 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 42,554 psi | 65% | 2418 fps | 95.5% |
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 112 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 206gr | Peregrine Backup (VRG-2). ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,740 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,740 fps. Accurate 3100 gives the best case fill at 100 %, and 112 of the 112 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 206.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 206gr | Peregrine Backup (VRG-2) 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.