Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | RWS TMR bullet and 88 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 CFE223.
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>> | 92% | 53,171 psi | 88% | 2776 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 54,157 psi | 90% | 2864 fps | 97.6% |
| Accurate 2230 | <<locked>> | 82% | 50,966 psi | 85% | 2812 fps | 97.4% |
| Accurate 2460 | <<locked>> | 88% | 51,648 psi | 86% | 2792 fps | 99.9% |
| Accurate 2495 | <<locked>> | 98% | 52,866 psi | 88% | 2828 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 52,924 psi | 88% | 2851 fps | 99.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,402 psi | 87% | 2861 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 54,201 psi | 90% | 2733 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 51,663 psi | 86% | 2707 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 94% | 52,402 psi | 87% | 2848 fps | 98.2% |
| ADI AR 2207 | <<locked>> | 82% | 52,098 psi | 87% | 2713 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 53,113 psi | 88% | 2835 fps | 97.6% |
| ADI AR 2219 | <<locked>> | 86% | 53,925 psi | 90% | 2844 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 51,677 psi | 86% | 2805 fps | 99% |
| Alliant AR-Comp | <<locked>> | 94% | 53,795 psi | 89% | 2854 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 52,779 psi | 88% | 2910 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 51,561 psi | 86% | 2933 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 52,939 psi | 88% | 2864 fps | 98.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 51,822 psi | 86% | 2858 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,345 psi | 89% | 2792 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 52,939 psi | 88% | 2877 fps | 97.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,847 psi | 76% | 2831 fps | 97.2% |
| Alliant Reloder-7 | <<locked>> | 82% | 53,359 psi | 89% | 2733 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 53,113 psi | 88% | 2726 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 51,953 psi | 86% | 2854 fps | 97% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,706 psi | 86% | 2867 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 92% | 54,259 psi | 90% | 2802 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 94% | 53,345 psi | 89% | 2884 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 90% | 51,561 psi | 86% | 2913 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 88% | 52,562 psi | 87% | 2825 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 53,722 psi | 89% | 2851 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 54,041 psi | 90% | 2874 fps | 96.6% |
| Hodgdon H4198 | <<locked>> | 82% | 53,040 psi | 88% | 2733 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 52,750 psi | 88% | 2861 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 54,360 psi | 90% | 2936 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,968 psi | 56% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 54,259 psi | 90% | 2864 fps | 98.8% |
| IMR 3031 | <<locked>> | 96% | 54,389 psi | 90% | 2904 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 52,576 psi | 87% | 2818 fps | 97.7% |
| IMR 4198 | <<locked>> | 88% | 54,317 psi | 90% | 2759 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 54,172 psi | 90% | 2913 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 92% | 51,677 psi | 86% | 2805 fps | 99% |
| Lovex D073.4 | <<locked>> | 82% | 51,808 psi | 86% | 2805 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 88% | 51,880 psi | 86% | 2802 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 96% | 54,012 psi | 90% | 2877 fps | 99.9% |
| Lovex S060 | <<locked>> | 94% | 53,272 psi | 89% | 2785 fps | 98.2% |
| Lovex S062 | <<locked>> | 98% | 51,590 psi | 86% | 2818 fps | 99% |
| Norma 200 | <<locked>> | 84% | 53,476 psi | 89% | 2769 fps | 100% |
| Norma 201 | <<locked>> | 96% | 54,244 psi | 90% | 2844 fps | 99.3% |
| Norma 202 | <<locked>> | 94% | 51,242 psi | 85% | 2812 fps | 100% |
| Norma 203B | <<locked>> | 98% | 51,982 psi | 86% | 2864 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 98% | 52,359 psi | 87% | 2887 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 92% | 51,140 psi | 85% | 2835 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 90% | 53,548 psi | 89% | 2812 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,069 psi | 57% | 1749 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 51,764 psi | 86% | 2805 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 52,054 psi | 86% | 2933 fps | 97.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,994 psi | 81% | 2910 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 92% | 52,141 psi | 87% | 2795 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 96% | 51,184 psi | 85% | 2789 fps | 98.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,921 psi | 80% | 2795 fps | 98% |
| Shooters World AR Plus | <<locked>> | 82% | 51,808 psi | 86% | 2805 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 96% | 54,012 psi | 90% | 2877 fps | 99.9% |
| Shooters World Precision | <<locked>> | 98% | 51,590 psi | 86% | 2818 fps | 99% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 51,764 psi | 86% | 2766 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 52,373 psi | 87% | 2467 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 50,908 psi | 85% | 2802 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 50,256 psi | 83% | 2858 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 54,346 psi | 90% | 2812 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 53,766 psi | 89% | 2838 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 53,911 psi | 90% | 2864 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,722 psi | 89% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,620 psi | 87% | 2749 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 53,026 psi | 88% | 2848 fps | 99.3% |
| Somchem S335 | <<locked>> | 94% | 52,315 psi | 87% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 53,200 psi | 88% | 2838 fps | 98.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,211 psi | 82% | 2805 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 82% | 52,054 psi | 86% | 2664 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 53,635 psi | 89% | 2743 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 53,359 psi | 89% | 2753 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 52,968 psi | 88% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 51,503 psi | 86% | 2789 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 47,340 psi | 79% | 2740 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 92% | 52,199 psi | 87% | 2808 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 98% | 53,055 psi | 88% | 2831 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,540 psi | 72% | 2667 fps | 96.5% |
| Winchester 748 | <<locked>> | 92% | 50,836 psi | 84% | 2851 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 96% | 53,461 psi | 89% | 2877 fps | 98.8% |
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% | 36,550 psi | 61% | 2497 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 47,340 psi | 79% | 2746 fps | 96.3% |
| Accurate 2230 | <<locked>> | 80% | 47,413 psi | 79% | 2753 fps | 96.7% |
| Accurate 2460 | <<locked>> | 80% | 39,523 psi | 66% | 2582 fps | 98.6% |
| Accurate 2495 | <<locked>> | 80% | 29,066 psi | 48% | 2385 fps | 98.7% |
| Accurate 2520 | <<locked>> | 80% | 34,911 psi | 58% | 2523 fps | 97.2% |
| Accurate 4064 | <<locked>> | 80% | 27,514 psi | 46% | 2356 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 45,223 psi | 75% | 2592 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 45,556 psi | 76% | 2608 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 40,611 psi | 67% | 2631 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 49,110 psi | 82% | 2674 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 44,367 psi | 74% | 2684 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 44,077 psi | 73% | 2690 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,592 psi | 59% | 2500 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,837 psi | 56% | 2520 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,596 psi | 67% | 2684 fps | 96.3% |
| Alliant Power Pro 2000-MR | 49.4 gr | 92% | 45,252 psi | 75% | 2812 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 38,493 psi | 64% | 2595 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,317 psi | 59% | 2546 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,727 psi | 69% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 40,915 psi | 68% | 2661 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 96% | 40,219 psi | 67% | 2713 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,082 psi | 83% | 2687 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,976 psi | 73% | 2589 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 45,339 psi | 75% | 2740 fps | 95.5% |
| Bofors RP3 | <<locked>> | 90% | 36,883 psi | 61% | 2592 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,884 psi | 63% | 2507 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,127 psi | 55% | 2500 fps | 95.3% |
| Hodgdon CFE223 | 46.1 gr | 84% | 41,945 psi | 70% | 2733 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 40,437 psi | 67% | 2621 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 80% | 40,988 psi | 68% | 2638 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 96% | 47,166 psi | 78% | 2762 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 49,777 psi | 83% | 2687 fps | 100% |
| Hodgdon H4895 | <<locked>> | 84% | 38,348 psi | 64% | 2592 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 36,724 psi | 61% | 2605 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,164 psi | 42% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 37,202 psi | 62% | 2549 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 32,213 psi | 54% | 2500 fps | 98.7% |
| IMR 4064 | <<locked>> | 90% | 41,075 psi | 68% | 2615 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 42,685 psi | 71% | 2582 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 39,218 psi | 65% | 2641 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 35,592 psi | 59% | 2500 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 48,283 psi | 80% | 2749 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 39,218 psi | 65% | 2582 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 31,372 psi | 52% | 2451 fps | 95.9% |
| Lovex S060 | <<locked>> | 84% | 39,479 psi | 66% | 2536 fps | 95.2% |
| Lovex S062 | <<locked>> | 86% | 35,563 psi | 59% | 2516 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 47,137 psi | 78% | 2674 fps | 100% |
| Norma 201 | <<locked>> | 82% | 35,143 psi | 58% | 2490 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 32,706 psi | 54% | 2454 fps | 97.2% |
| Norma 203B | <<locked>> | 90% | 40,118 psi | 67% | 2648 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 90% | 40,161 psi | 67% | 2661 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 84% | 39,189 psi | 65% | 2612 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 82% | 41,365 psi | 69% | 2598 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,121 psi | 42% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,001 psi | 66% | 2595 fps | 98.1% |
| ReloadSwiss RS 52 | 46.8 gr | 90% | 42,554 psi | 71% | 2759 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 33,228 psi | 55% | 2552 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 36,550 psi | 61% | 2507 fps | 98% |
| Rottweil R 902 | <<locked>> | 84% | 35,549 psi | 59% | 2493 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 92% | 36,811 psi | 61% | 2585 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 48,283 psi | 80% | 2749 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,372 psi | 52% | 2451 fps | 95.9% |
| Shooters World Precision | <<locked>> | 86% | 35,563 psi | 59% | 2516 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,235 psi | 70% | 2602 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,777 psi | 83% | 2434 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,701 psi | 74% | 2697 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 41,481 psi | 69% | 2697 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,351 psi | 70% | 2621 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 50,096 psi | 83% | 2779 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 39,117 psi | 65% | 2598 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,824 psi | 58% | 2425 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,282 psi | 47% | 2283 fps | 96.7% |
| Somchem S321 | <<locked>> | 80% | 37,898 psi | 63% | 2572 fps | 96.5% |
| Somchem S335 | <<locked>> | 80% | 34,214 psi | 57% | 2428 fps | 98.3% |
| Somchem S341 | <<locked>> | 86% | 40,350 psi | 67% | 2615 fps | 95.3% |
| Somchem S355 | <<locked>> | 92% | 38,159 psi | 63% | 2595 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 49,095 psi | 82% | 2625 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,624 psi | 66% | 2516 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,780 psi | 58% | 2434 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 29,791 psi | 49% | 2395 fps | 98.8% |
| Vihtavuori N140 | <<locked>> | 80% | 31,082 psi | 52% | 2398 fps | 97% |
| Vihtavuori N150 | <<locked>> | 90% | 34,185 psi | 57% | 2487 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 35,215 psi | 59% | 2490 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 29,805 psi | 50% | 2379 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 40,741 psi | 68% | 2615 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 34,040 psi | 57% | 2523 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 38,247 psi | 64% | 2602 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 107 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | RWS TMR. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,936 fps. Accurate 4064 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, ADI AR 2208 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 CFE223 rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | RWS TMR they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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.