Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:168 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 RCM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:13.5
Load data in caliber .300 RCM with .308 | 168gr | Berger BT Target bullet and 101 powders. The key underlying parameters are shown in the table above.
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.
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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% | 54,752 psi | 86% | 2723 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,666 psi | 89% | 2795 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,637 psi | 89% | 2789 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,824 psi | 86% | 2805 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,014 psi | 88% | 2792 fps | 97.1% |
| Accurate 4064 | <<locked>> | 92% | 56,579 psi | 89% | 2835 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2923 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 88% | 57,145 psi | 90% | 2871 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,708 psi | 86% | 2818 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,159 psi | 88% | 2822 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,043 psi | 89% | 2795 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,956 psi | 89% | 2992 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,549 psi | 85% | 2841 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,740 psi | 90% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,158 psi | 86% | 2861 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,085 psi | 85% | 2923 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,332 psi | 87% | 2963 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 2661 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,975 psi | 67% | 2812 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,159 psi | 90% | 2890 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 55,143 psi | 86% | 2854 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,419 psi | 87% | 2825 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,505 psi | 85% | 2753 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,564 psi | 87% | 2851 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,882 psi | 84% | 2897 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 56,797 psi | 89% | 2812 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,130 psi | 88% | 2867 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 98% | 55,593 psi | 87% | 2917 fps | 98% |
| Hodgdon H4350 | <<locked>> | 96% | 56,449 psi | 88% | 2881 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 57,711 psi | 90% | 2881 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,256 psi | 79% | 2799 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,319 psi | 90% | 2913 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 56,463 psi | 88% | 2953 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 55% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,376 psi | 87% | 2831 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 57,740 psi | 90% | 2861 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,624 psi | 90% | 2851 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,157 psi | 85% | 2779 fps | 97.5% |
| IMR 4198 | <<locked>> | 82% | 57,363 psi | 90% | 2723 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,637 psi | 87% | 2848 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,392 psi | 90% | 2858 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,287 psi | 84% | 2858 fps | 99.5% |
| IMR 4895 | <<locked>> | 90% | 56,565 psi | 89% | 2890 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,159 psi | 88% | 2822 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,449 psi | 88% | 2805 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 56,927 psi | 89% | 2844 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,797 psi | 89% | 2799 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,377 psi | 90% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,637 psi | 89% | 2851 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 2881 fps | 98.3% |
| Norma 201 | <<locked>> | 88% | 55,724 psi | 87% | 2812 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,304 psi | 88% | 2815 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,389 psi | 85% | 2848 fps | 99.9% |
| Norma 204ᴾ | <<locked>> | 100% | 56,362 psi | 88% | 2900 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 55,245 psi | 87% | 2907 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 55,042 psi | 86% | 2874 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,273 psi | 85% | 2904 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 56,550 psi | 89% | 2841 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,188 psi | 88% | 2861 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,072 psi | 89% | 2825 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,824 psi | 56% | 1762 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,492 psi | 87% | 2799 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,652 psi | 89% | 2851 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,579 psi | 87% | 2927 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,998 psi | 86% | 2959 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,115 psi | 88% | 2943 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,738 psi | 87% | 2969 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 86% | 56,884 psi | 89% | 2795 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,478 psi | 89% | 2815 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 54,998 psi | 86% | 2848 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,419 psi | 87% | 2825 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,637 psi | 89% | 2851 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 56,927 psi | 89% | 2844 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,377 psi | 90% | 2848 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 2881 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 56,811 psi | 89% | 2907 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,911 psi | 86% | 2818 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,405 psi | 87% | 2838 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,464 psi | 90% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 57,450 psi | 90% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,072 psi | 89% | 2802 fps | 98% |
| Somchem S321 | <<locked>> | 84% | 57,682 psi | 90% | 2854 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,637 psi | 89% | 2749 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,549 psi | 85% | 2812 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 55,361 psi | 87% | 2844 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,821 psi | 78% | 2858 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,130 psi | 90% | 2713 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,638 psi | 90% | 2736 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,188 psi | 88% | 2779 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,855 psi | 89% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 56,826 psi | 89% | 2822 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,491 psi | 85% | 2854 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 56,855 psi | 89% | 2822 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,085 psi | 86% | 2792 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,014 psi | 89% | 2910 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,177 psi | 66% | 2736 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,781 psi | 86% | 2831 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 56,550 psi | 89% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,869 psi | 88% | 2920 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,635 psi | 54% | 2651 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,448 psi | 87% | 2851 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 48,196 psi | 76% | 2628 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,953 psi | 83% | 2746 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,017 psi | 64% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,964 psi | 75% | 2707 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,255 psi | 77% | 2684 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 38,798 psi | 61% | 2549 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,809 psi | 55% | 2530 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 44,585 psi | 70% | 2664 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 37,797 psi | 59% | 2513 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,644 psi | 73% | 2671 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 46,920 psi | 74% | 2657 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,335 psi | 63% | 2687 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,536 psi | 59% | 2536 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,143 psi | 85% | 2720 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,321 psi | 63% | 2598 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,027 psi | 55% | 2539 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,256 psi | 51% | 2497 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,240 psi | 47% | 2441 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,391 psi | 59% | 2684 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,540 psi | 68% | 2664 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 37,101 psi | 58% | 2539 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 45,948 psi | 72% | 2664 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,240 psi | 76% | 2657 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,353 psi | 71% | 2690 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,009 psi | 78% | 2835 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 53,258 psi | 83% | 2762 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,913 psi | 59% | 2539 fps | 96% |
| Hodgdon H414 | <<locked>> | 90% | 42,598 psi | 67% | 2690 fps | 95% |
| Hodgdon H4350 | <<locked>> | 92% | 49,632 psi | 78% | 2769 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 45,034 psi | 71% | 2674 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,211 psi | 47% | 2385 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,843 psi | 64% | 2644 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 45,643 psi | 72% | 2766 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 42% | 1542 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,076 psi | 68% | 2625 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 44,498 psi | 70% | 2667 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,653 psi | 62% | 2546 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,078 psi | 71% | 2621 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 54,056 psi | 85% | 2680 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 45,977 psi | 72% | 2690 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,991 psi | 71% | 2651 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 33,823 psi | 53% | 2490 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,263 psi | 65% | 2628 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 46,644 psi | 73% | 2671 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 52,750 psi | 83% | 2753 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,555 psi | 68% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,440 psi | 70% | 2598 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,595 psi | 62% | 2549 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,305 psi | 62% | 2546 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 42,061 psi | 66% | 2618 fps | 95% |
| Norma 201 | <<locked>> | 80% | 43,598 psi | 68% | 2615 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 43,990 psi | 69% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,711 psi | 62% | 2589 fps | 98.3% |
| Norma 204 | <<locked>> | 98% | 52,576 psi | 82% | 2838 fps | 95.3% |
| Norma URP | <<locked>> | 86% | 35,085 psi | 55% | 2530 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,044 psi | 61% | 2595 fps | 98% |
| Ramshot Hunter | <<locked>> | 92% | 41,858 psi | 66% | 2680 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 46,572 psi | 73% | 2677 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,021 psi | 72% | 2697 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,169 psi | 79% | 2720 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 42% | 1578 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,112 psi | 82% | 2749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,002 psi | 64% | 2579 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,134 psi | 66% | 2697 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,345 psi | 54% | 2566 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,577 psi | 54% | 2543 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,202 psi | 58% | 2608 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 47,514 psi | 74% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,495 psi | 65% | 2569 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,853 psi | 55% | 2484 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 45,948 psi | 72% | 2664 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,305 psi | 62% | 2546 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,555 psi | 68% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,595 psi | 62% | 2549 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,061 psi | 66% | 2618 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,752 psi | 56% | 2530 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,773 psi | 70% | 2651 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,902 psi | 67% | 2628 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,904 psi | 70% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,376 psi | 59% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,874 psi | 69% | 2589 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 50,212 psi | 79% | 2749 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,585 psi | 70% | 2572 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,367 psi | 70% | 2644 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 35,752 psi | 56% | 2490 fps | 97.7% |
| Somchem S365 | <<locked>> | 80% | 25,962 psi | 41% | 2316 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 50,691 psi | 79% | 2628 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,252 psi | 71% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,915 psi | 64% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,510 psi | 65% | 2559 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,924 psi | 53% | 2428 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 34,447 psi | 54% | 2480 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 46,673 psi | 73% | 2667 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,001 psi | 63% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,100 psi | 57% | 2533 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 92% | 32,358 psi | 51% | 2516 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,081 psi | 47% | 2349 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 46,238 psi | 72% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,830 psi | 67% | 2694 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,472 psi | 48% | 2523 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,453 psi | 67% | 2635 fps | 99.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 101 powders for .300 RCM loaded with the .308 | 168gr | Berger BT Target. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,992 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.