Load Specifications
Bullet:.264 | 139gr | Norma HP
Bullet Manufacturer:Norma
Bullet Weight:139 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Caliber:.260 Rem. load data
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:55 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:10.0
Load data in caliber .260 Rem. with .264 | 139gr | Norma HP bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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 2495 | <<locked>> | 86% | 54,259 psi | 90% | 2589 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 52,649 psi | 87% | 2592 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,527 psi | 74% | 2562 fps | 97.9% |
| Accurate 4064 | <<locked>> | 88% | 54,157 psi | 90% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,795 psi | 89% | 2720 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 54,114 psi | 90% | 2661 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 51,851 psi | 86% | 2615 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,895 psi | 86% | 2700 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 52,924 psi | 88% | 2612 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,389 psi | 90% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,650 psi | 89% | 2776 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 51,996 psi | 86% | 2638 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,547 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 51,532 psi | 86% | 2723 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 52,721 psi | 88% | 2759 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,082 psi | 85% | 2694 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,047 psi | 70% | 2585 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,028 psi | 62% | 2490 fps | 96.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,529 psi | 79% | 2756 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,838 psi | 89% | 2677 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 52,663 psi | 87% | 2654 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,301 psi | 87% | 2625 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,591 psi | 87% | 2644 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,330 psi | 89% | 2667 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 52,924 psi | 88% | 2717 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 92% | 53,519 psi | 89% | 2680 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 82% | 51,285 psi | 85% | 2621 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 51,445 psi | 85% | 2654 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,099 psi | 90% | 2703 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,127 psi | 88% | 2753 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,781 psi | 59% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 52,475 psi | 87% | 2625 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 51,445 psi | 85% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 51,503 psi | 86% | 2602 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,186 psi | 90% | 2628 fps | 98.6% |
| IMR 4350 | <<locked>> | 96% | 52,808 psi | 88% | 2654 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,244 psi | 90% | 2657 fps | 98.5% |
| IMR 4831 | <<locked>> | 98% | 54,302 psi | 90% | 2713 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 53,911 psi | 90% | 2687 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 52,924 psi | 88% | 2612 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 53,940 psi | 90% | 2638 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,490 psi | 89% | 2592 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 51,213 psi | 85% | 2595 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,940 psi | 90% | 2654 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 51,474 psi | 86% | 2638 fps | 98.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,927 psi | 61% | 2421 fps | 95.9% |
| Norma 201 | <<locked>> | 84% | 52,924 psi | 88% | 2608 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,490 psi | 89% | 2608 fps | 100% |
| Norma 203B | <<locked>> | 86% | 51,837 psi | 86% | 2648 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,258 psi | 88% | 2703 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 47,195 psi | 78% | 2707 fps | 97.5% |
| Norma URP | <<locked>> | 96% | 53,040 psi | 88% | 2713 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 51,953 psi | 86% | 2667 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 51,677 psi | 86% | 2707 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 52,953 psi | 88% | 2631 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 52,939 psi | 88% | 2651 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,390 psi | 60% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,505 psi | 89% | 2651 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 52,881 psi | 88% | 2720 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,170 psi | 87% | 2749 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,432 psi | 89% | 2743 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 52,910 psi | 88% | 2772 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 53,867 psi | 89% | 2585 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,374 psi | 89% | 2605 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 52,562 psi | 87% | 2648 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,983 psi | 90% | 2677 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,009 psi | 83% | 2677 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 52,301 psi | 87% | 2625 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,940 psi | 90% | 2654 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 53,940 psi | 90% | 2638 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 51,213 psi | 85% | 2595 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 51,474 psi | 86% | 2638 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,027 psi | 90% | 2703 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,503 psi | 86% | 2612 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,533 psi | 87% | 2635 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,230 psi | 90% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 51,517 psi | 86% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,085 psi | 90% | 2612 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,530 psi | 82% | 2671 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 53,693 psi | 89% | 2546 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 51,068 psi | 85% | 2602 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 52,939 psi | 88% | 2648 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 51,271 psi | 85% | 2713 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,763 psi | 84% | 2657 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 82% | 51,503 psi | 86% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,272 psi | 89% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,114 psi | 90% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,230 psi | 90% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,040 psi | 86% | 2657 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 53,316 psi | 89% | 2612 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,170 psi | 87% | 2589 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 51,169 psi | 85% | 2664 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,615 psi | 77% | 2657 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 51,750 psi | 86% | 2635 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,505 psi | 89% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,316 psi | 89% | 2723 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,782 psi | 63% | 2612 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,388 psi | 87% | 2644 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 2495 | <<locked>> | 80% | 44,599 psi | 74% | 2454 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,439 psi | 72% | 2441 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 36,347 psi | 60% | 2408 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 42,192 psi | 70% | 2457 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,082 psi | 52% | 2300 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 47,572 psi | 79% | 2559 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,538 psi | 67% | 2425 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 45,803 psi | 76% | 2595 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,676 psi | 83% | 2562 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,763 psi | 84% | 2539 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,613 psi | 72% | 2608 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,567 psi | 67% | 2451 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,236 psi | 72% | 2507 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,372 psi | 52% | 2313 fps | 95.8% |
| Alliant Reloder-17 | 36.7 gr | 80% | 35,157 psi | 58% | 2434 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,918 psi | 75% | 2585 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,499 psi | 46% | 2238 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,998 psi | 58% | 2441 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,460 psi | 56% | 2454 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,079 psi | 78% | 2575 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 40,263 psi | 67% | 2454 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,944 psi | 68% | 2428 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,907 psi | 81% | 2589 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,988 psi | 68% | 2461 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 38,290 psi | 64% | 2457 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 44,411 psi | 74% | 2530 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 48,051 psi | 80% | 2572 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,921 psi | 48% | 2221 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,338 psi | 74% | 2552 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,248 psi | 67% | 2523 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,818 psi | 45% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,079 psi | 77% | 2526 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,370 psi | 80% | 2559 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,583 psi | 71% | 2454 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,078 psi | 75% | 2480 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 41,133 psi | 68% | 2454 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,030 psi | 67% | 2411 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 30,284 psi | 50% | 2264 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 44,309 psi | 74% | 2533 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 49,676 psi | 83% | 2562 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,239 psi | 78% | 2543 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,413 psi | 79% | 2500 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,728 psi | 71% | 2461 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,157 psi | 58% | 2316 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 37,797 psi | 63% | 2392 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 34,708 psi | 58% | 2372 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 46,818 psi | 78% | 2516 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,253 psi | 79% | 2520 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,598 psi | 71% | 2493 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 46,601 psi | 77% | 2595 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 41,307 psi | 69% | 2595 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 31,589 psi | 52% | 2306 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 42,409 psi | 70% | 2513 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 37,347 psi | 62% | 2444 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 49,734 psi | 83% | 2582 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,298 psi | 82% | 2595 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,137 psi | 45% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,423 psi | 69% | 2448 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,166 psi | 77% | 2612 fps | 99.6% |
| ReloadSwiss RS 60 | 36.7 gr | 80% | 37,376 psi | 62% | 2493 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,864 psi | 51% | 2316 fps | 95.1% |
| ReloadSwiss RS 70 | 38.2 gr | 82% | 33,054 psi | 55% | 2375 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 50,850 psi | 84% | 2543 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,570 psi | 74% | 2470 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,058 psi | 63% | 2405 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 50,517 psi | 84% | 2625 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 43,671 psi | 73% | 2569 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 84% | 40,944 psi | 68% | 2428 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,157 psi | 58% | 2316 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,239 psi | 78% | 2543 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,728 psi | 71% | 2461 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 37,797 psi | 63% | 2392 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,928 psi | 65% | 2451 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,254 psi | 80% | 2562 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,224 psi | 77% | 2536 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,776 psi | 79% | 2457 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,958 psi | 66% | 2336 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,131 psi | 65% | 2362 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,296 psi | 77% | 2618 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 47,616 psi | 79% | 2461 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,906 psi | 80% | 2552 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,711 psi | 64% | 2408 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 28,369 psi | 47% | 2264 fps | 97.9% |
| Somchem S385 | <<locked>> | 94% | 41,582 psi | 69% | 2500 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 48,182 psi | 80% | 2448 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,135 psi | 73% | 2444 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,831 psi | 74% | 2457 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,898 psi | 61% | 2346 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 32,750 psi | 54% | 2303 fps | 96% |
| Vihtavuori N530 | <<locked>> | 80% | 49,908 psi | 83% | 2562 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,047 psi | 72% | 2451 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,358 psi | 54% | 2306 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 86% | 29,443 psi | 49% | 2303 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,445 psi | 54% | 2283 fps | 98.1% |
| Winchester 748 | <<locked>> | 80% | 50,140 psi | 83% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,290 psi | 64% | 2457 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,427 psi | 46% | 2310 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,658 psi | 76% | 2539 fps | 99.9% |
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 98 powders for .260 Rem. loaded with the .264 | 139gr | Norma HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,776 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,776 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 Reloder-17, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for .260 Rem. with the .264 | 139gr | Norma HP 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.