Load Specifications
Load data in caliber .300 RCM with .308 | 180gr | Peregrine VRG-3 bullet and 101 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 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% | 55,521 psi | 87% | 2641 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,624 psi | 90% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,041 psi | 85% | 2664 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,217 psi | 88% | 2736 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,261 psi | 90% | 2730 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,365 psi | 65% | 2575 fps | 96.6% |
| Accurate 4064 | <<locked>> | 92% | 57,551 psi | 90% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,012 psi | 85% | 2799 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 54,781 psi | 86% | 2746 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,941 psi | 88% | 2749 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,290 psi | 90% | 2746 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,897 psi | 86% | 2674 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,708 psi | 86% | 2867 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,825 psi | 87% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,449 psi | 88% | 2792 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 2858 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 57,188 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,436 psi | 62% | 2602 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,382 psi | 70% | 2766 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,839 psi | 86% | 2766 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 56,434 psi | 88% | 2782 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,666 psi | 89% | 2762 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,680 psi | 87% | 2684 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,869 psi | 89% | 2779 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,361 psi | 87% | 2828 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 57,464 psi | 90% | 2799 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 98% | 57,377 psi | 90% | 2858 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 54,476 psi | 85% | 2769 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 86% | 55,332 psi | 87% | 2756 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,880 psi | 81% | 2736 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,027 psi | 86% | 2792 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,128 psi | 85% | 2838 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,549 psi | 56% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,898 psi | 89% | 2762 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,593 psi | 87% | 2736 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,288 psi | 87% | 2730 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,506 psi | 87% | 2717 fps | 98.4% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,956 psi | 89% | 2785 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,245 psi | 87% | 2743 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,911 psi | 86% | 2795 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 54,302 psi | 85% | 2769 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,290 psi | 90% | 2746 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 57,464 psi | 90% | 2730 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,491 psi | 85% | 2723 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,389 psi | 85% | 2677 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,245 psi | 87% | 2726 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,389 psi | 85% | 2733 fps | 99.2% |
| Lovex S070 | <<locked>> | 98% | 55,259 psi | 87% | 2766 fps | 98.6% |
| Norma 201 | <<locked>> | 88% | 56,956 psi | 89% | 2740 fps | 100% |
| Norma 202 | <<locked>> | 88% | 57,725 psi | 90% | 2740 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,622 psi | 87% | 2779 fps | 100% |
| Norma 204 | <<locked>> | 98% | 54,172 psi | 85% | 2785 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 44,382 psi | 70% | 2723 fps | 96.2% |
| Norma URPᴾ | <<locked>> | 100% | 57,014 psi | 89% | 2841 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 56,594 psi | 89% | 2808 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,811 psi | 87% | 2841 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 54,128 psi | 85% | 2723 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 57,537 psi | 90% | 2792 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,520 psi | 85% | 2700 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,013 psi | 56% | 1706 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,826 psi | 89% | 2726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,215 psi | 85% | 2733 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,450 psi | 90% | 2861 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,782 psi | 89% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,099 psi | 85% | 2828 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,595 psi | 90% | 2913 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 86% | 57,508 psi | 90% | 2713 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,406 psi | 90% | 2736 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,275 psi | 88% | 2776 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,666 psi | 89% | 2762 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,389 psi | 85% | 2733 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,491 psi | 85% | 2723 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,245 psi | 87% | 2726 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,259 psi | 87% | 2766 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,578 psi | 86% | 2789 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,130 psi | 88% | 2753 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,985 psi | 89% | 2772 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,027 psi | 86% | 2631 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,274 psi | 87% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,708 psi | 86% | 2690 fps | 98.2% |
| Somchem S321 | <<locked>> | 82% | 55,042 psi | 86% | 2730 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,346 psi | 85% | 2631 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,912 psi | 88% | 2743 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 56,579 psi | 89% | 2772 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 2789 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,558 psi | 75% | 2677 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 82% | 54,708 psi | 86% | 2592 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,376 psi | 87% | 2618 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,363 psi | 90% | 2700 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,810 psi | 86% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,592 psi | 86% | 2703 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,854 psi | 88% | 2785 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 54,360 psi | 85% | 2700 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,275 psi | 88% | 2717 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,810 psi | 86% | 2792 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,511 psi | 68% | 2677 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,231 psi | 88% | 2766 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,375 psi | 85% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,696 psi | 90% | 2861 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,215 psi | 55% | 2608 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,811 psi | 89% | 2779 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% | 48,979 psi | 77% | 2552 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,708 psi | 84% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,408 psi | 65% | 2484 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,805 psi | 76% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 43,961 psi | 69% | 2516 fps | 95.2% |
| Accurate 3100 | <<locked>> | 98% | 38,319 psi | 60% | 2513 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 39,204 psi | 61% | 2480 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,011 psi | 52% | 2415 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 45,252 psi | 71% | 2595 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,464 psi | 60% | 2451 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,398 psi | 74% | 2602 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,109 psi | 75% | 2582 fps | 100% |
| Alliant Power Pro 2000-MR | 51.3 gr | 80% | 41,379 psi | 65% | 2635 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,029 psi | 60% | 2470 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,901 psi | 64% | 2533 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,415 psi | 49% | 2375 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,880 psi | 52% | 2444 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,906 psi | 45% | 2339 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,257 psi | 52% | 2510 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,686 psi | 70% | 2605 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 37,579 psi | 59% | 2470 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 44,063 psi | 69% | 2556 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,153 psi | 77% | 2589 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,441 psi | 73% | 2625 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,590 psi | 81% | 2772 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 38,595 psi | 60% | 2480 fps | 97% |
| Hodgdon H414 | <<locked>> | 88% | 40,915 psi | 64% | 2579 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 90% | 47,718 psi | 75% | 2657 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 45,672 psi | 72% | 2605 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,006 psi | 42% | 2231 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,916 psi | 66% | 2582 fps | 99.7% |
| Hodgdon Superformance | 60 gr | 90% | 43,540 psi | 68% | 2651 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 41% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,019 psi | 69% | 2562 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 45,600 psi | 71% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,408 psi | 63% | 2484 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,960 psi | 67% | 2507 fps | 95.8% |
| IMR 4350 | <<locked>> | 92% | 44,179 psi | 69% | 2582 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,004 psi | 67% | 2536 fps | 95.7% |
| IMR 4831 | <<locked>> | 84% | 32,169 psi | 50% | 2379 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 41,901 psi | 66% | 2562 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 47,398 psi | 74% | 2602 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 53,621 psi | 84% | 2680 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,440 psi | 70% | 2572 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,252 psi | 71% | 2533 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 40,219 psi | 63% | 2484 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 37,347 psi | 59% | 2431 fps | 95.7% |
| Lovex S070 | <<locked>> | 88% | 40,364 psi | 63% | 2510 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 44,266 psi | 69% | 2549 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 44,614 psi | 70% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,263 psi | 63% | 2523 fps | 98.9% |
| Norma 204 | <<locked>> | 96% | 50,401 psi | 79% | 2723 fps | 95.7% |
| Norma MRP | <<locked>> | 98% | 41,292 psi | 65% | 2657 fps | 95.2% |
| Norma URP | <<locked>> | 84% | 33,576 psi | 53% | 2421 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 40,074 psi | 63% | 2539 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 37,507 psi | 59% | 2516 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 47,369 psi | 74% | 2612 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,920 psi | 74% | 2631 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,285 psi | 80% | 2651 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 42% | 1519 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,316 psi | 84% | 2677 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,088 psi | 61% | 2467 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,352 psi | 68% | 2638 fps | 99.1% |
| ReloadSwiss RS 60 | 50.5 gr | 80% | 35,085 psi | 55% | 2510 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,837 psi | 51% | 2431 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 35,418 psi | 56% | 2497 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 48,037 psi | 75% | 2579 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,047 psi | 66% | 2500 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 35,389 psi | 55% | 2421 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 44,063 psi | 69% | 2556 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,347 psi | 59% | 2431 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,440 psi | 70% | 2572 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,219 psi | 63% | 2484 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 40,364 psi | 63% | 2510 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,564 psi | 57% | 2474 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,513 psi | 71% | 2585 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,845 psi | 69% | 2566 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,658 psi | 72% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,000 psi | 60% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,829 psi | 66% | 2480 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 51,401 psi | 81% | 2680 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,252 psi | 71% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,484 psi | 71% | 2585 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 36,332 psi | 57% | 2428 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 26,223 psi | 41% | 2264 fps | 96.3% |
| Somchem S385 | <<locked>> | 98% | 44,541 psi | 70% | 2625 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 51,576 psi | 81% | 2552 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,079 psi | 72% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,698 psi | 65% | 2480 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,337 psi | 66% | 2490 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,519 psi | 54% | 2365 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 32,764 psi | 51% | 2369 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 47,442 psi | 74% | 2598 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,785 psi | 64% | 2484 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,242 psi | 51% | 2369 fps | 95% |
| Vihtavuori N555 | <<locked>> | 90% | 31,024 psi | 49% | 2411 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,560 psi | 48% | 2297 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 47,456 psi | 74% | 2644 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,162 psi | 65% | 2582 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,935 psi | 45% | 2418 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,250 psi | 68% | 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 119 powders for .300 RCM loaded with the .308 | 180gr | Peregrine VRG-3. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,913 fps. Accurate 3100 gives the best case fill at 100 %, and 119 of the 119 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, ADI AR 2213 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, ReloadSwiss RS 60 rank at the top here: for .300 RCM with the .308 | 180gr | Peregrine VRG-3 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Alliant Reloder-25 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.