Load Specifications
Load data in caliber .260 Rem. with .264 | 130gr | Lehigh Defense Controlled Chaos bullet and 94 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 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.
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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% | 54,041 psi | 90% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,359 psi | 87% | 2644 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,331 psi | 90% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,677 psi | 86% | 2638 fps | 96.4% |
| Accurate 4064 | <<locked>> | 90% | 52,243 psi | 87% | 2690 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,590 psi | 86% | 2762 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 53,127 psi | 88% | 2720 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 54,143 psi | 90% | 2723 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 52,025 psi | 86% | 2671 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 52,808 psi | 88% | 2651 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 52,591 psi | 87% | 2831 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 53,998 psi | 90% | 2743 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 51,126 psi | 85% | 2710 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,316 psi | 89% | 2822 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,908 psi | 85% | 2805 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,130 psi | 63% | 2569 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,453 psi | 71% | 2720 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,518 psi | 87% | 2730 fps | 99.5% |
| Bofors RP3 | <<locked>> | 92% | 54,273 psi | 90% | 2753 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 51,300 psi | 85% | 2674 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,969 psi | 90% | 2657 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,416 psi | 85% | 2703 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,968 psi | 88% | 2792 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 51,996 psi | 86% | 2717 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 96% | 51,445 psi | 85% | 2766 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 94% | 52,286 psi | 87% | 2726 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 53,693 psi | 89% | 2733 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,414 psi | 82% | 2700 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 52,852 psi | 88% | 2762 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 51,779 psi | 86% | 2792 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,360 psi | 59% | 1654 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,619 psi | 86% | 2687 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 53,664 psi | 89% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,737 psi | 89% | 2707 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,664 psi | 89% | 2684 fps | 97.6% |
| IMR 4350 | <<locked>> | 98% | 51,343 psi | 85% | 2697 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,345 psi | 89% | 2707 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,359 psi | 87% | 2759 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 52,417 psi | 87% | 2740 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 52,025 psi | 86% | 2671 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,634 psi | 87% | 2700 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,823 psi | 88% | 2651 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 53,200 psi | 88% | 2697 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,446 psi | 87% | 2700 fps | 98.6% |
| Lovex S070 | <<locked>> | 98% | 53,272 psi | 89% | 2733 fps | 97.8% |
| Norma 201 | <<locked>> | 86% | 51,982 psi | 86% | 2667 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,417 psi | 87% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 90% | 53,824 psi | 89% | 2749 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 54,360 psi | 90% | 2805 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 54,346 psi | 90% | 2776 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,447 psi | 89% | 2805 fps | 98.5% |
| Ramshot TAC | <<locked>> | 84% | 52,301 psi | 87% | 2687 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,953 psi | 86% | 2710 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,852 psi | 88% | 2674 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,911 psi | 60% | 1696 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,388 psi | 87% | 2700 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 51,416 psi | 85% | 2776 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,273 psi | 90% | 2858 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 51,256 psi | 85% | 2785 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,169 psi | 85% | 2808 fps | 99% |
| Rottweil R 901 | <<locked>> | 84% | 53,142 psi | 88% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,460 psi | 87% | 2667 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 54,143 psi | 90% | 2746 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 51,300 psi | 85% | 2674 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,446 psi | 87% | 2700 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,634 psi | 87% | 2700 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 53,200 psi | 88% | 2697 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,272 psi | 89% | 2733 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,533 psi | 87% | 2759 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,114 psi | 90% | 2717 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 51,634 psi | 86% | 2694 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,490 psi | 89% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 53,534 psi | 89% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,837 psi | 88% | 2654 fps | 97.5% |
| Somchem S321 | <<locked>> | 82% | 53,069 psi | 88% | 2703 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,881 psi | 88% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 53,606 psi | 89% | 2710 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 51,488 psi | 86% | 2700 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,008 psi | 81% | 2759 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 53,287 psi | 89% | 2575 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,708 psi | 89% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 51,996 psi | 86% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,736 psi | 88% | 2651 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,533 psi | 87% | 2677 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 53,374 psi | 89% | 2749 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 84% | 52,460 psi | 87% | 2671 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 54,389 psi | 90% | 2694 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 52,402 psi | 87% | 2756 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,452 psi | 69% | 2641 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,983 psi | 90% | 2733 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,315 psi | 87% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 51,445 psi | 85% | 2766 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,098 psi | 57% | 2566 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 51,358 psi | 85% | 2703 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% | 47,848 psi | 79% | 2536 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,408 psi | 67% | 2464 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,384 psi | 79% | 2612 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,556 psi | 76% | 2536 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 38,203 psi | 63% | 2461 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,272 psi | 57% | 2444 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 44,164 psi | 73% | 2572 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 37,536 psi | 62% | 2428 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,209 psi | 77% | 2579 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 46,412 psi | 77% | 2566 fps | 100% |
| Alliant Power Pro 2000-MR | 36 gr | 80% | 40,016 psi | 66% | 2602 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,999 psi | 61% | 2448 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,885 psi | 66% | 2510 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,577 psi | 57% | 2454 fps | 95.8% |
| Alliant Reloder-17 | 35.4 gr | 80% | 31,879 psi | 53% | 2415 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,892 psi | 50% | 2362 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,695 psi | 61% | 2589 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,047 psi | 72% | 2572 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 36,521 psi | 61% | 2451 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 45,513 psi | 76% | 2575 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,688 psi | 79% | 2562 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,918 psi | 75% | 2598 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,400 psi | 82% | 2736 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 80% | 37,478 psi | 62% | 2454 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 90% | 42,221 psi | 70% | 2602 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 48,921 psi | 81% | 2671 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 44,541 psi | 74% | 2582 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,863 psi | 50% | 2306 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,408 psi | 67% | 2556 fps | 99.3% |
| Hodgdon Superformance | 43 gr | 92% | 44,831 psi | 74% | 2671 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,455 psi | 44% | 1480 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,453 psi | 71% | 2530 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 43,932 psi | 73% | 2572 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,407 psi | 65% | 2461 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,367 psi | 74% | 2526 fps | 95.6% |
| IMR 4350 | <<locked>> | 94% | 45,295 psi | 75% | 2595 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,440 psi | 74% | 2556 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 33,112 psi | 55% | 2398 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 40,828 psi | 68% | 2539 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 46,209 psi | 77% | 2579 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,120 psi | 72% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,990 psi | 73% | 2507 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 39,073 psi | 65% | 2461 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 38,740 psi | 64% | 2454 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 41,713 psi | 69% | 2533 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 43,062 psi | 72% | 2523 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,381 psi | 72% | 2533 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,247 psi | 65% | 2500 fps | 98.4% |
| Norma URP | <<locked>> | 86% | 34,693 psi | 58% | 2448 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 38,711 psi | 64% | 2510 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 41,176 psi | 68% | 2589 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 45,963 psi | 76% | 2582 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,513 psi | 76% | 2605 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,559 psi | 82% | 2621 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 44% | 1516 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,480 psi | 67% | 2490 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,785 psi | 69% | 2608 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,924 psi | 56% | 2477 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,997 psi | 56% | 2454 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,811 psi | 61% | 2520 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 47,210 psi | 78% | 2566 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,915 psi | 68% | 2477 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,461 psi | 57% | 2398 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 45,513 psi | 76% | 2575 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,740 psi | 64% | 2454 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,120 psi | 72% | 2549 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,073 psi | 65% | 2461 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 41,713 psi | 69% | 2533 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,462 psi | 59% | 2448 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,135 psi | 73% | 2556 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,627 psi | 71% | 2543 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,440 psi | 74% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,941 psi | 61% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,555 psi | 72% | 2507 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 49,676 psi | 83% | 2651 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,034 psi | 73% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,816 psi | 73% | 2556 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 35,259 psi | 59% | 2402 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 25,672 psi | 43% | 2241 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 50,169 psi | 83% | 2533 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,759 psi | 74% | 2470 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,408 psi | 67% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,104 psi | 68% | 2470 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,591 psi | 56% | 2343 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 33,852 psi | 56% | 2392 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 46,064 psi | 77% | 2572 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,552 psi | 66% | 2461 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 35,694 psi | 59% | 2451 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 92% | 32,039 psi | 53% | 2434 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,747 psi | 49% | 2267 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 45,629 psi | 76% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,221 psi | 70% | 2602 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,863 psi | 50% | 2431 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,945 psi | 70% | 2546 fps | 99.2% |
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 94 powders for .260 Rem. loaded with the .264 | 130gr | Lehigh Defense Controlled Chaos. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,858 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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, Alliant Reloder-17 rank at the top here: for .260 Rem. with the .264 | 130gr | Lehigh Defense Controlled Chaos 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.