Load Specifications
Load data in caliber .30-06 Spring. with .308 | 180gr | Nosler Partition SP 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, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 52,678 psi | 90% | 2536 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 50,618 psi | 86% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,865 psi | 87% | 2602 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 51,184 psi | 87% | 2543 fps | 95.9% |
| Accurate 4064 | <<locked>> | 90% | 50,749 psi | 86% | 2595 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 49,603 psi | 84% | 2657 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 51,663 psi | 88% | 2625 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 52,620 psi | 90% | 2621 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 50,850 psi | 87% | 2582 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 51,155 psi | 87% | 2562 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 50,720 psi | 86% | 2723 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 52,127 psi | 89% | 2641 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 52,707 psi | 90% | 2657 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,590 psi | 88% | 2713 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 52,533 psi | 89% | 2749 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,637 psi | 62% | 2461 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,553 psi | 69% | 2598 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 50,923 psi | 87% | 2631 fps | 99.2% |
| Bofors RP3 | <<locked>> | 92% | 52,576 psi | 90% | 2657 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,142 psi | 90% | 2625 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 52,736 psi | 90% | 2569 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,953 psi | 90% | 2651 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 51,140 psi | 87% | 2687 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 50,459 psi | 86% | 2562 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 50,227 psi | 86% | 2615 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 94% | 50,908 psi | 87% | 2677 fps | 97% |
| Hodgdon H4895 | <<locked>> | 86% | 52,156 psi | 89% | 2635 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,616 psi | 81% | 2598 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 50,966 psi | 87% | 2661 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 50,169 psi | 85% | 2684 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,317 psi | 60% | 1608 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 52,069 psi | 89% | 2618 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 50,241 psi | 86% | 2598 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 51,111 psi | 87% | 2592 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 50,995 psi | 87% | 2566 fps | 96.8% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,895 psi | 90% | 2641 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,677 psi | 88% | 2605 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,875 psi | 76% | 2566 fps | 98.3% |
| IMR 4895 | <<locked>> | 88% | 50,705 psi | 86% | 2638 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 84% | 50,850 psi | 87% | 2582 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 50,865 psi | 87% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 51,547 psi | 88% | 2559 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 51,721 psi | 88% | 2602 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 50,894 psi | 87% | 2598 fps | 98.1% |
| Lovex S070 | <<locked>> | 98% | 51,430 psi | 88% | 2628 fps | 97.2% |
| Norma 201 | <<locked>> | 86% | 50,314 psi | 86% | 2572 fps | 100% |
| Norma 202 | <<locked>> | 86% | 50,879 psi | 87% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 90% | 51,880 psi | 88% | 2648 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 52,373 psi | 89% | 2697 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 90% | 52,402 psi | 89% | 2674 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,372 psi | 87% | 2694 fps | 97.9% |
| Ramshot TAC | <<locked>> | 84% | 50,966 psi | 87% | 2592 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 50,256 psi | 86% | 2608 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 82% | 51,561 psi | 88% | 2579 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,592 psi | 61% | 1644 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 50,691 psi | 86% | 2595 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 52,852 psi | 90% | 2720 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 52,504 psi | 89% | 2756 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,721 psi | 90% | 2730 fps | 99.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,098 psi | 90% | 2756 fps | 99% |
| Rottweil R 901 | <<locked>> | 84% | 51,692 psi | 88% | 2562 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 50,821 psi | 87% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 52,446 psi | 89% | 2648 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,142 psi | 90% | 2625 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 50,894 psi | 87% | 2598 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 50,865 psi | 87% | 2602 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 51,721 psi | 88% | 2602 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 51,430 psi | 88% | 2628 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 50,720 psi | 86% | 2654 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 52,547 psi | 89% | 2618 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,142 psi | 90% | 2641 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 52,098 psi | 89% | 2523 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,025 psi | 89% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 50,981 psi | 87% | 2552 fps | 96.8% |
| Somchem S321 | <<locked>> | 82% | 51,634 psi | 88% | 2608 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 51,358 psi | 87% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 51,938 psi | 88% | 2612 fps | 99.7% |
| Somchem S355 | <<locked>> | 94% | 52,823 psi | 90% | 2644 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,862 psi | 80% | 2651 fps | 100% |
| Unknown powder | <<locked>> | 96% | 50,270 psi | 86% | 2657 fps | 98.6% |
| Vihtavuori N130 | <<locked>> | 82% | 51,924 psi | 88% | 2487 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 52,286 psi | 89% | 2510 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 50,270 psi | 86% | 2543 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 51,184 psi | 87% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 50,981 psi | 87% | 2582 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 51,590 psi | 88% | 2648 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 84% | 51,140 psi | 87% | 2579 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 52,678 psi | 90% | 2598 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 50,705 psi | 86% | 2651 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,682 psi | 68% | 2536 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,199 psi | 89% | 2631 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 51,155 psi | 87% | 2628 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 50,908 psi | 87% | 2677 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,764 psi | 56% | 2444 fps | 97.1% |
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% | 46,543 psi | 79% | 2451 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,986 psi | 66% | 2379 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,135 psi | 75% | 2500 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 48,080 psi | 82% | 2497 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,883 psi | 63% | 2369 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,041 psi | 60% | 2395 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 42,757 psi | 73% | 2477 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,376 psi | 62% | 2336 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,831 psi | 76% | 2487 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 44,570 psi | 76% | 2470 fps | 100% |
| Alliant Power Pro 2000-MR | 46.7 gr | 80% | 38,537 psi | 66% | 2493 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,665 psi | 61% | 2352 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,551 psi | 66% | 2415 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,708 psi | 61% | 2408 fps | 95.8% |
| Alliant Reloder-17 | 46 gr | 80% | 30,821 psi | 52% | 2316 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,574 psi | 52% | 2310 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,014 psi | 65% | 2543 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,713 psi | 71% | 2474 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 35,186 psi | 60% | 2356 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 46,833 psi | 80% | 2523 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,572 psi | 79% | 2474 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,279 psi | 74% | 2503 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,645 psi | 81% | 2635 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 80% | 47,543 psi | 81% | 2520 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,172 psi | 62% | 2359 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 90% | 44,454 psi | 76% | 2569 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,149 psi | 73% | 2487 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,676 psi | 52% | 2260 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,622 psi | 62% | 2408 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 94% | 46,514 psi | 79% | 2621 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 45% | 1437 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,232 psi | 65% | 2379 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 38,972 psi | 66% | 2421 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,534 psi | 60% | 2313 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 45,266 psi | 77% | 2470 fps | 95.4% |
| IMR 4350 | <<locked>> | 96% | 46,673 psi | 79% | 2543 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,934 psi | 78% | 2510 fps | 95.5% |
| IMR 4831 | <<locked>> | 92% | 34,853 psi | 59% | 2372 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 39,479 psi | 67% | 2444 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 44,831 psi | 76% | 2487 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 41,553 psi | 71% | 2457 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,033 psi | 73% | 2418 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,058 psi | 65% | 2372 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 39,900 psi | 68% | 2408 fps | 95.5% |
| Lovex S070 | <<locked>> | 92% | 42,786 psi | 73% | 2480 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 41,800 psi | 71% | 2431 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 41,916 psi | 71% | 2441 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,942 psi | 65% | 2405 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 35,592 psi | 61% | 2398 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 37,188 psi | 63% | 2411 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 94% | 42,351 psi | 72% | 2536 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 44,643 psi | 76% | 2487 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,063 psi | 75% | 2507 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,196 psi | 82% | 2526 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 45% | 1473 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,800 psi | 71% | 2444 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,103 psi | 68% | 2507 fps | 97.8% |
| ReloadSwiss RS 60 | 46 gr | 80% | 32,793 psi | 56% | 2379 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,114 psi | 60% | 2415 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 37,985 psi | 65% | 2474 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 45,861 psi | 78% | 2474 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,871 psi | 68% | 2388 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,214 psi | 57% | 2306 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 92% | 46,833 psi | 80% | 2523 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,900 psi | 68% | 2408 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,553 psi | 71% | 2457 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,058 psi | 65% | 2372 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 42,786 psi | 73% | 2480 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,185 psi | 58% | 2349 fps | 96.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,888 psi | 73% | 2461 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,162 psi | 70% | 2444 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,323 psi | 74% | 2392 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,940 psi | 61% | 2270 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 44,947 psi | 77% | 2457 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 48,225 psi | 82% | 2559 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,844 psi | 73% | 2392 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,496 psi | 72% | 2461 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 34,098 psi | 58% | 2310 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 26,295 psi | 45% | 2195 fps | 95.1% |
| Unknown powder | <<locked>> | 86% | 36,564 psi | 62% | 2405 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 48,979 psi | 83% | 2451 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,627 psi | 74% | 2388 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,189 psi | 67% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,813 psi | 68% | 2382 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,445 psi | 55% | 2254 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 35,085 psi | 60% | 2352 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 44,643 psi | 76% | 2477 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,247 psi | 65% | 2369 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 36,651 psi | 62% | 2402 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 32,561 psi | 55% | 2382 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,864 psi | 53% | 2231 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 47,674 psi | 81% | 2579 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 44,454 psi | 76% | 2569 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,763 psi | 52% | 2385 fps | 95.9% |
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 109 powders for .30-06 Spring. loaded with the .308 | 180gr | Nosler Partition SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,608 fps to 2,756 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .30-06 Spring. with the .308 | 180gr | Nosler Partition SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.