Load Specifications
Load data in caliber .260 Ackley Improved with .264 | 132gr | 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 ReloadSwiss RS 60, ReloadSwiss RS 70 and Hodgdon Superformance.
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>> | 82% | 53,330 psi | 86% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,477 psi | 89% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 53,911 psi | 86% | 2717 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,853 psi | 88% | 2710 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,699 psi | 68% | 2608 fps | 97.2% |
| Accurate 4064 | <<locked>> | 90% | 55,637 psi | 89% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,956 psi | 90% | 2838 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 55,912 psi | 90% | 2776 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 53,969 psi | 87% | 2736 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,589 psi | 81% | 2759 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,911 psi | 88% | 2726 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,217 psi | 90% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,318 psi | 90% | 2907 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 53,867 psi | 86% | 2753 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,505 psi | 87% | 2776 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 53,490 psi | 86% | 2841 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,984 psi | 88% | 2881 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 49,734 psi | 80% | 2753 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,698 psi | 65% | 2641 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,818 psi | 73% | 2805 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,028 psi | 90% | 2799 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 54,302 psi | 87% | 2769 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,447 psi | 87% | 2746 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 82% | 53,403 psi | 86% | 2667 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,375 psi | 87% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,056 psi | 88% | 2779 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 55,100 psi | 88% | 2838 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 94% | 55,593 psi | 89% | 2799 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 53,055 psi | 85% | 2736 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,345 psi | 86% | 2769 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,347 psi | 90% | 2822 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,709 psi | 89% | 2877 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,708 psi | 57% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,375 psi | 87% | 2740 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 53,505 psi | 86% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 53,345 psi | 86% | 2717 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,347 psi | 90% | 2746 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 54,694 psi | 88% | 2769 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,127 psi | 85% | 2726 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,420 psi | 90% | 2828 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 55,927 psi | 90% | 2805 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 54,911 psi | 88% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,825 psi | 90% | 2753 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,564 psi | 89% | 2710 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 53,142 psi | 85% | 2713 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,564 psi | 89% | 2766 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 53,243 psi | 85% | 2753 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 54,665 psi | 88% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,317 psi | 89% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 88% | 53,722 psi | 86% | 2762 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,463 psi | 89% | 2822 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 45,788 psi | 73% | 2766 fps | 96.8% |
| Norma URP | <<locked>> | 98% | 54,940 psi | 88% | 2825 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 54,375 psi | 87% | 2789 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 53,577 psi | 86% | 2822 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 55,201 psi | 89% | 2753 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,810 psi | 88% | 2766 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,666 psi | 89% | 2730 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,216 psi | 58% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,579 psi | 89% | 2769 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,868 psi | 88% | 2838 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,520 psi | 87% | 2871 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,709 psi | 89% | 2861 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,259 psi | 89% | 2894 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 55,288 psi | 89% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,085 psi | 88% | 2720 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,172 psi | 87% | 2759 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,196 psi | 77% | 2730 fps | 96% |
| Rottweil R 907 | <<locked>> | 94% | 54,447 psi | 87% | 2746 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,564 psi | 89% | 2766 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,825 psi | 90% | 2753 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 53,142 psi | 85% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 53,243 psi | 85% | 2753 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,086 psi | 90% | 2822 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 53,606 psi | 86% | 2730 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,505 psi | 87% | 2753 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,101 psi | 90% | 2657 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,069 psi | 85% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,115 psi | 90% | 2723 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 47,732 psi | 77% | 2723 fps | 95.8% |
| Somchem S321 | <<locked>> | 82% | 56,362 psi | 90% | 2762 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,521 psi | 89% | 2657 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,272 psi | 85% | 2720 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,679 psi | 88% | 2759 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,852 psi | 85% | 2825 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,066 psi | 79% | 2713 fps | 97% |
| Vihtavuori N130 | <<locked>> | 82% | 55,796 psi | 89% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,434 psi | 90% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,216 psi | 89% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,883 psi | 90% | 2703 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,043 psi | 90% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 53,954 psi | 87% | 2772 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 55,695 psi | 89% | 2730 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,012 psi | 87% | 2700 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,260 psi | 90% | 2825 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,976 psi | 72% | 2713 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,041 psi | 87% | 2749 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,622 psi | 89% | 2776 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,506 psi | 89% | 2844 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,448 psi | 58% | 2657 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,621 psi | 88% | 2762 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% | 50,328 psi | 81% | 2585 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,322 psi | 68% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,140 psi | 80% | 2664 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,063 psi | 72% | 2549 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 37,101 psi | 59% | 2500 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 40,059 psi | 64% | 2507 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,647 psi | 51% | 2392 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 46,224 psi | 74% | 2625 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,479 psi | 63% | 2484 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 47,398 psi | 76% | 2707 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,385 psi | 78% | 2631 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,008 psi | 79% | 2605 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,395 psi | 68% | 2667 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,957 psi | 62% | 2503 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,858 psi | 67% | 2562 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,343 psi | 52% | 2415 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,721 psi | 54% | 2480 fps | 98.1% |
| Alliant Reloder-19 | <<locked>> | 98% | 46,615 psi | 75% | 2697 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,847 psi | 45% | 2320 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 92% | 34,316 psi | 55% | 2552 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,788 psi | 73% | 2638 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 38,609 psi | 62% | 2507 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 42,163 psi | 68% | 2533 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,183 psi | 80% | 2618 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,500 psi | 76% | 2654 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,465 psi | 63% | 2513 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 39,450 psi | 63% | 2562 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 88% | 45,963 psi | 74% | 2641 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 46,702 psi | 75% | 2635 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,557 psi | 44% | 2257 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,815 psi | 69% | 2612 fps | 99.8% |
| Hodgdon Superformance | 44.2 gr | 88% | 41,713 psi | 67% | 2631 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 42% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,904 psi | 72% | 2592 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 46,717 psi | 75% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,466 psi | 66% | 2516 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,845 psi | 70% | 2539 fps | 96.3% |
| IMR 4350 | <<locked>> | 90% | 42,467 psi | 68% | 2562 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,379 psi | 66% | 2516 fps | 95.5% |
| IMR 4831 | <<locked>> | 82% | 30,951 psi | 50% | 2359 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,917 psi | 69% | 2595 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 48,385 psi | 78% | 2631 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,469 psi | 73% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,050 psi | 74% | 2559 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 41,075 psi | 66% | 2513 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 35,897 psi | 58% | 2411 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 38,682 psi | 62% | 2490 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,063 psi | 72% | 2575 fps | 100% |
| Norma 202 | <<locked>> | 80% | 45,600 psi | 73% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,205 psi | 66% | 2552 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 48,588 psi | 78% | 2710 fps | 95.6% |
| Norma MRP | <<locked>> | 98% | 42,540 psi | 68% | 2700 fps | 95.9% |
| Norma URP | <<locked>> | 82% | 32,184 psi | 52% | 2398 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 41,118 psi | 66% | 2572 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 38,609 psi | 62% | 2552 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 48,486 psi | 78% | 2648 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,051 psi | 77% | 2661 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,388 psi | 84% | 2684 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 43% | 1532 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,987 psi | 64% | 2497 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,541 psi | 71% | 2671 fps | 99.3% |
| ReloadSwiss RS 60 | 38 gr | 80% | 35,940 psi | 58% | 2543 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 31,604 psi | 51% | 2411 fps | 95% |
| ReloadSwiss RS 70 | 40.5 gr | 84% | 33,910 psi | 54% | 2474 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 49,037 psi | 79% | 2608 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,902 psi | 69% | 2530 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 36,260 psi | 58% | 2451 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 45,034 psi | 72% | 2674 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 42,163 psi | 68% | 2533 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,897 psi | 58% | 2411 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,469 psi | 73% | 2602 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,075 psi | 66% | 2513 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 38,682 psi | 62% | 2490 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,507 psi | 60% | 2503 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,789 psi | 75% | 2621 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,817 psi | 72% | 2598 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,746 psi | 75% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,972 psi | 62% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,147 psi | 64% | 2461 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 44,614 psi | 72% | 2671 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 52,591 psi | 84% | 2710 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,050 psi | 74% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,601 psi | 75% | 2618 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 37,057 psi | 59% | 2454 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 26,861 psi | 43% | 2297 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 42,699 psi | 68% | 2602 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 52,736 psi | 85% | 2579 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,181 psi | 76% | 2520 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,873 psi | 69% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,192 psi | 69% | 2516 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,288 psi | 57% | 2395 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 31,430 psi | 50% | 2349 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 48,559 psi | 78% | 2628 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,626 psi | 67% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,054 psi | 53% | 2402 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 29,994 psi | 48% | 2395 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,314 psi | 50% | 2329 fps | 97.4% |
| Winchester 748 | <<locked>> | 80% | 48,515 psi | 78% | 2674 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 39,450 psi | 63% | 2562 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,804 psi | 45% | 2395 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,411 psi | 71% | 2602 fps | 99.8% |
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 .260 Ackley Improved loaded with the .264 | 132gr | Peregrine VRG-3. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,907 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 (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 132.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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 60, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .260 Ackley Improved with the .264 | 132gr | Peregrine VRG-3 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Alliant Reloder-22 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.