Load Specifications
Load data in caliber .30-06 Spring. with .311 | 180gr | Prvi Partizan SP BT bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Winchester 760.
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% | 50,807 psi | 86% | 2520 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,373 psi | 89% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 50,560 psi | 86% | 2595 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,692 psi | 88% | 2575 fps | 96.3% |
| Accurate 4064 | <<locked>> | 90% | 52,359 psi | 89% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,619 psi | 88% | 2697 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 52,852 psi | 90% | 2651 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 50,749 psi | 86% | 2605 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 52,054 psi | 89% | 2608 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 52,402 psi | 89% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 52,301 psi | 89% | 2762 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 50,401 psi | 86% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 50,908 psi | 87% | 2644 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,011 psi | 90% | 2746 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,633 psi | 86% | 2733 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,927 psi | 65% | 2500 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,293 psi | 72% | 2648 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,533 psi | 89% | 2667 fps | 99.5% |
| Bofors RP3 | <<locked>> | 90% | 50,691 psi | 86% | 2638 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 51,401 psi | 88% | 2608 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,778 psi | 86% | 2549 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,126 psi | 87% | 2635 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,721 psi | 90% | 2720 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 90% | 51,880 psi | 88% | 2648 fps | 99% |
| Hodgdon H414 | <<locked>> | 96% | 51,198 psi | 87% | 2694 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 94% | 52,069 psi | 89% | 2657 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 50,227 psi | 86% | 2615 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,400 psi | 84% | 2635 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 52,678 psi | 90% | 2694 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 51,517 psi | 88% | 2720 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,360 psi | 60% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,430 psi | 88% | 2618 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 49,966 psi | 85% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 50,227 psi | 86% | 2589 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,256 psi | 86% | 2566 fps | 96.9% |
| IMR 4350 | <<locked>> | 98% | 51,285 psi | 87% | 2631 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,127 psi | 90% | 2638 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,402 psi | 89% | 2690 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 52,199 psi | 89% | 2671 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 52,054 psi | 89% | 2608 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,475 psi | 89% | 2631 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,649 psi | 90% | 2585 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 50,009 psi | 85% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,388 psi | 89% | 2635 fps | 98.5% |
| Lovex S070 | <<locked>> | 98% | 53,156 psi | 90% | 2664 fps | 97.7% |
| Norma 201 | <<locked>> | 86% | 51,880 psi | 88% | 2605 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,112 psi | 89% | 2605 fps | 100% |
| Norma 203B | <<locked>> | 88% | 50,125 psi | 85% | 2631 fps | 99.7% |
| Norma URP | <<locked>> | 98% | 50,937 psi | 87% | 2687 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 88% | 50,473 psi | 86% | 2654 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 49,806 psi | 85% | 2680 fps | 97.8% |
| Ramshot TAC | <<locked>> | 84% | 52,156 psi | 89% | 2621 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,561 psi | 88% | 2638 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,895 psi | 90% | 2608 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,897 psi | 61% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,156 psi | 89% | 2631 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 51,039 psi | 87% | 2703 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,430 psi | 86% | 2733 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 51,082 psi | 87% | 2713 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,198 psi | 87% | 2740 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 52,794 psi | 90% | 2589 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,344 psi | 89% | 2602 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 50,575 psi | 86% | 2628 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 51,401 psi | 88% | 2608 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,388 psi | 89% | 2635 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,475 psi | 89% | 2631 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 50,009 psi | 85% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,156 psi | 90% | 2664 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,301 psi | 89% | 2687 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 50,357 psi | 86% | 2598 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 51,329 psi | 87% | 2625 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,154 psi | 85% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,183 psi | 85% | 2503 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,707 psi | 90% | 2589 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 53,040 psi | 90% | 2638 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,808 psi | 90% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,111 psi | 85% | 2592 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 51,256 psi | 87% | 2631 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,602 psi | 83% | 2687 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 53,026 psi | 90% | 2513 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 50,415 psi | 86% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 51,996 psi | 89% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,678 psi | 90% | 2585 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,634 psi | 90% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 50,125 psi | 85% | 2635 fps | 99% |
| Vihtavuori N530 | <<locked>> | 84% | 52,373 psi | 89% | 2608 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 50,821 psi | 87% | 2582 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 52,446 psi | 89% | 2687 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,147 psi | 70% | 2569 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,357 psi | 86% | 2615 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,083 psi | 89% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 51,198 psi | 87% | 2694 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,982 psi | 58% | 2497 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 51,140 psi | 87% | 2635 fps | 99.9% |
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% | 47,703 psi | 81% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,408 psi | 69% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,181 psi | 80% | 2546 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,370 psi | 82% | 2523 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 38,218 psi | 65% | 2402 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,040 psi | 58% | 2379 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 43,772 psi | 75% | 2503 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 37,275 psi | 63% | 2365 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,803 psi | 78% | 2513 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 46,166 psi | 79% | 2503 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,798 psi | 68% | 2533 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,840 psi | 63% | 2385 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,494 psi | 67% | 2444 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,621 psi | 59% | 2395 fps | 95.7% |
| Alliant Reloder-17 | 47.3 gr | 80% | 31,676 psi | 54% | 2349 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,762 psi | 51% | 2300 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,637 psi | 62% | 2523 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,018 psi | 73% | 2510 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 36,361 psi | 62% | 2388 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 45,165 psi | 77% | 2507 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,543 psi | 81% | 2500 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,672 psi | 76% | 2536 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,168 psi | 84% | 2667 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 80% | 37,260 psi | 63% | 2388 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 92% | 44,904 psi | 76% | 2589 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 92% | 48,994 psi | 83% | 2608 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 44,150 psi | 75% | 2516 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,660 psi | 50% | 2244 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,016 psi | 68% | 2487 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 44,715 psi | 76% | 2598 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 45% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,467 psi | 72% | 2470 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 43,772 psi | 75% | 2510 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,131 psi | 67% | 2395 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,309 psi | 75% | 2464 fps | 95.4% |
| IMR 4350 | <<locked>> | 94% | 45,179 psi | 77% | 2530 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,324 psi | 75% | 2493 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 33,069 psi | 56% | 2339 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,451 psi | 69% | 2470 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 45,803 psi | 78% | 2513 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 42,873 psi | 73% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,947 psi | 75% | 2448 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,044 psi | 66% | 2402 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 38,682 psi | 66% | 2395 fps | 95.4% |
| Lovex S070 | <<locked>> | 92% | 44,005 psi | 75% | 2513 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 43,105 psi | 73% | 2464 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 43,236 psi | 74% | 2470 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,870 psi | 66% | 2431 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 34,534 psi | 59% | 2382 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,479 psi | 66% | 2448 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 41,002 psi | 70% | 2523 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 45,847 psi | 78% | 2520 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,179 psi | 77% | 2536 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,559 psi | 84% | 2559 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 45% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,263 psi | 69% | 2425 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,423 psi | 71% | 2539 fps | 98.3% |
| ReloadSwiss RS 60 | 47.3 gr | 80% | 33,721 psi | 57% | 2411 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,230 psi | 62% | 2448 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,088 psi | 67% | 2510 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 46,978 psi | 80% | 2500 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,872 psi | 70% | 2415 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,200 psi | 58% | 2333 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 45,165 psi | 77% | 2507 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,682 psi | 66% | 2395 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,873 psi | 73% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,044 psi | 66% | 2402 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 92% | 44,005 psi | 75% | 2513 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,186 psi | 60% | 2382 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,961 psi | 75% | 2493 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,322 psi | 72% | 2477 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,425 psi | 76% | 2418 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,898 psi | 63% | 2297 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,308 psi | 74% | 2441 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 49,661 psi | 85% | 2589 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,048 psi | 75% | 2421 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,845 psi | 75% | 2493 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 35,244 psi | 60% | 2346 fps | 97.7% |
| Somchem S365 | <<locked>> | 82% | 27,137 psi | 46% | 2231 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 50,111 psi | 85% | 2474 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,701 psi | 76% | 2411 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,350 psi | 69% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,799 psi | 69% | 2408 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,315 psi | 57% | 2283 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 33,837 psi | 58% | 2333 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 45,905 psi | 78% | 2510 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,349 psi | 67% | 2398 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 35,520 psi | 60% | 2388 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 92% | 31,821 psi | 54% | 2369 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,747 psi | 51% | 2211 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 45,440 psi | 77% | 2549 fps | 100% |
| Winchester 760 | 52.2 gr | 90% | 42,163 psi | 72% | 2536 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,776 psi | 51% | 2369 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,771 psi | 71% | 2480 fps | 99.1% |
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 .30-06 Spring. loaded with the .311 | 180gr | Prvi Partizan SP BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,762 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,762 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 (405 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.311" calls for a 1:15.0 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. ReloadSwiss RS 60, Alliant Reloder-17, Winchester 760 rank at the top here: for .30-06 Spring. with the .311 | 180gr | Prvi Partizan SP BT 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.