Load Specifications
Bullet:.308 | 175gr | Lapua ScenarL
Bullet Manufacturer:Lapua
Bullet Weight:175 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 H&H Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:85.9 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:12.0
Load data in caliber .300 H&H Mag. with .308 | 175gr | Lapua ScenarL bullet and 94 powders. The key underlying parameters are shown in the table above.
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>> | 84% | 55,347 psi | 89% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 53,330 psi | 86% | 2753 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,995 psi | 80% | 2785 fps | 98.8% |
| Accurate 4064 | <<locked>> | 86% | 55,448 psi | 89% | 2792 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,898 psi | 90% | 2894 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 54,592 psi | 88% | 2976 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 82% | 54,868 psi | 88% | 2822 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,869 psi | 90% | 2825 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 53,447 psi | 86% | 2874 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,882 psi | 88% | 2943 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 53,200 psi | 85% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,519 psi | 86% | 2822 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,345 psi | 86% | 2897 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,273 psi | 87% | 2923 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,260 psi | 90% | 2920 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,690 psi | 80% | 2858 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,934 psi | 75% | 2805 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,046 psi | 66% | 2713 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2989 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,723 psi | 88% | 2838 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 53,838 psi | 86% | 2815 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,690 psi | 80% | 2858 fps | 96.7% |
| Bofors RP7 | <<locked>> | 90% | 53,345 psi | 86% | 2792 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 86% | 54,273 psi | 87% | 2825 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 92% | 54,650 psi | 88% | 2890 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 90% | 54,868 psi | 88% | 2851 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 82% | 55,477 psi | 89% | 2831 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 53,505 psi | 86% | 2825 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,376 psi | 89% | 2864 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,940 psi | 88% | 2927 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,158 psi | 58% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 53,055 psi | 85% | 2782 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,057 psi | 90% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,448 psi | 89% | 2808 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,752 psi | 88% | 2789 fps | 98.8% |
| IMR 4350 | <<locked>> | 94% | 54,172 psi | 87% | 2825 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,259 psi | 89% | 2822 fps | 98.8% |
| IMR 4831 | <<locked>> | 96% | 56,420 psi | 90% | 2884 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,940 psi | 88% | 2848 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,100 psi | 88% | 2795 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,737 psi | 86% | 2746 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,477 psi | 89% | 2802 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,056 psi | 88% | 2818 fps | 99.5% |
| Lovex S070 | <<locked>> | 94% | 56,101 psi | 90% | 2854 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,394 psi | 66% | 2631 fps | 97.2% |
| Norma 201 | <<locked>> | 82% | 53,722 psi | 86% | 2766 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,346 psi | 87% | 2766 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,072 psi | 90% | 2854 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,926 psi | 88% | 2874 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 52,779 psi | 85% | 2946 fps | 98.6% |
| Norma URP | <<locked>> | 94% | 54,621 psi | 88% | 2877 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 53,185 psi | 85% | 2828 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 53,592 psi | 86% | 2877 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 59% | 1791 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,317 psi | 87% | 2812 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,070 psi | 87% | 2884 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,969 psi | 87% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,709 psi | 89% | 2917 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,549 psi | 87% | 2946 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 84% | 54,288 psi | 87% | 2769 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,998 psi | 87% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,201 psi | 89% | 2848 fps | 96.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2907 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 53,345 psi | 86% | 2792 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,056 psi | 88% | 2818 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,100 psi | 88% | 2795 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,477 psi | 89% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,101 psi | 90% | 2854 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,448 psi | 89% | 2867 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,999 psi | 90% | 2825 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 53,200 psi | 85% | 2792 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,520 psi | 87% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,259 psi | 89% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,882 psi | 88% | 2769 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,013 psi | 88% | 2900 fps | 97.8% |
| Somchem S335 | <<locked>> | 82% | 54,317 psi | 87% | 2700 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,695 psi | 89% | 2812 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,954 psi | 87% | 2805 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 53,693 psi | 86% | 2881 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,014 psi | 90% | 2881 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 82% | 55,013 psi | 88% | 2680 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,375 psi | 87% | 2726 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,708 psi | 88% | 2743 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,216 psi | 89% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 53,534 psi | 86% | 2825 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,385 psi | 78% | 2743 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 86% | 56,376 psi | 90% | 2785 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,188 psi | 90% | 2881 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,417 psi | 84% | 2881 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 53,113 psi | 85% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,911 psi | 88% | 2894 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,206 psi | 68% | 2844 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 53,374 psi | 86% | 2802 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2822 fps | 97.1% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 48,588 psi | 78% | 2648 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,746 psi | 75% | 2641 fps | 96.6% |
| Accurate 3100 | <<locked>> | 90% | 35,520 psi | 57% | 2503 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 46,021 psi | 74% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,621 psi | 56% | 2500 fps | 96.8% |
| Accurate High Country | <<locked>> | 98% | 50,691 psi | 81% | 2910 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 51,488 psi | 83% | 2769 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,758 psi | 70% | 2621 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 47,036 psi | 75% | 2759 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,790 psi | 77% | 2825 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,976 psi | 71% | 2644 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,036 psi | 75% | 2710 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,229 psi | 55% | 2513 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,464 psi | 62% | 2638 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,296 psi | 74% | 2749 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,482 psi | 70% | 2740 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,282 psi | 45% | 2372 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,260 psi | 58% | 2602 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 86% | 32,460 psi | 52% | 2546 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,126 psi | 82% | 2782 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 44,106 psi | 71% | 2654 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 43,482 psi | 70% | 2740 fps | 95% |
| Bofors RP7 | <<locked>> | 82% | 41,582 psi | 67% | 2575 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 44,628 psi | 72% | 2661 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 39,320 psi | 63% | 2605 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 84% | 45,237 psi | 73% | 2684 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 52,025 psi | 83% | 2779 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,676 psi | 51% | 2411 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,617 psi | 78% | 2759 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 41,060 psi | 66% | 2671 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,064 psi | 43% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,734 psi | 80% | 2730 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,388 psi | 84% | 2759 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,021 psi | 74% | 2654 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,196 psi | 77% | 2680 fps | 97.7% |
| IMR 4350 | <<locked>> | 86% | 42,177 psi | 68% | 2608 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,437 psi | 65% | 2552 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 33,402 psi | 54% | 2454 fps | 96.4% |
| IMR 4895 | <<locked>> | 80% | 48,225 psi | 77% | 2740 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 51,576 psi | 83% | 2743 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,676 psi | 81% | 2697 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,166 psi | 74% | 2654 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,072 psi | 61% | 2507 fps | 96.5% |
| Lovex S070 | <<locked>> | 82% | 38,696 psi | 62% | 2539 fps | 95.5% |
| Lovex S071 | <<locked>> | 96% | 36,405 psi | 58% | 2526 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 50,343 psi | 81% | 2713 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,937 psi | 82% | 2717 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,383 psi | 74% | 2700 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 44,744 psi | 72% | 2697 fps | 95% |
| Norma MRP | <<locked>> | 92% | 40,016 psi | 64% | 2697 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 34,664 psi | 56% | 2497 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 80% | 46,470 psi | 75% | 2720 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 35,897 psi | 58% | 2536 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,412 psi | 44% | 1601 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,701 psi | 72% | 2644 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,531 psi | 81% | 2828 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,872 psi | 66% | 2697 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,243 psi | 55% | 2513 fps | 96.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 33,721 psi | 54% | 2516 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 47,921 psi | 77% | 2667 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,524 psi | 67% | 2602 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 51,924 psi | 83% | 2792 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 94% | 45,469 psi | 73% | 2736 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 82% | 41,582 psi | 67% | 2575 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,072 psi | 61% | 2507 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,576 psi | 83% | 2743 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,166 psi | 74% | 2654 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 38,696 psi | 62% | 2539 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,554 psi | 68% | 2651 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,257 psi | 84% | 2769 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,966 psi | 80% | 2740 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,285 psi | 82% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,207 psi | 69% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,740 psi | 64% | 2503 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 45,034 psi | 72% | 2730 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 51,024 psi | 82% | 2654 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,011 psi | 83% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,989 psi | 67% | 2602 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 31,169 psi | 50% | 2454 fps | 98.7% |
| Somchem S385 | <<locked>> | 90% | 40,524 psi | 65% | 2608 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 51,764 psi | 83% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,022 psi | 77% | 2638 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,283 psi | 77% | 2648 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,074 psi | 64% | 2533 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 36,027 psi | 58% | 2500 fps | 97.1% |
| Vihtavuori N165 | <<locked>> | 96% | 42,337 psi | 68% | 2635 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 46,630 psi | 75% | 2644 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,534 psi | 57% | 2500 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 82% | 28,964 psi | 46% | 2395 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,375 psi | 57% | 2474 fps | 98.9% |
| Winchester 760 | <<locked>> | 82% | 39,320 psi | 63% | 2605 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,687 psi | 43% | 2398 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,821 psi | 80% | 2746 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,716 psi | 73% | 2700 fps | 95.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 110 powders for .300 H&H Mag. loaded with the .308 | 175gr | Lapua ScenarL. Alliant Reloder-26 delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,989 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Accurate MAGPRO 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. As outliers, Accurate MAGPRO, Baschieri & Pellagri 109, Hodgdon H1000 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.