Load Specifications
Load data in caliber .280 Rem. with .284 | 136gr | Peregrine VLR-5 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 Reloder-17, ReloadSwiss RS 60 and Hodgdon H414.
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% | 50,401 psi | 86% | 2749 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 51,561 psi | 88% | 2812 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 50,140 psi | 85% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,488 psi | 88% | 2805 fps | 95.9% |
| Accurate 4064 | <<locked>> | 90% | 51,837 psi | 88% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,605 psi | 88% | 2933 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 52,881 psi | 90% | 2894 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 90% | 50,662 psi | 86% | 2841 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,967 psi | 88% | 2848 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 52,475 psi | 89% | 2825 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 52,431 psi | 89% | 3009 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 50,212 psi | 85% | 2851 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 50,256 psi | 86% | 2861 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 51,053 psi | 87% | 2884 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 50,096 psi | 85% | 2943 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,879 psi | 87% | 2979 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,768 psi | 64% | 2713 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,076 psi | 72% | 2867 fps | 97% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,518 psi | 89% | 2904 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 50,662 psi | 86% | 2874 fps | 99.9% |
| Bofors RP7 | <<locked>> | 94% | 51,242 psi | 87% | 2841 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,444 psi | 86% | 2782 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,111 psi | 87% | 2871 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,852 psi | 90% | 2969 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 90% | 51,735 psi | 88% | 2884 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 96% | 51,387 psi | 87% | 2933 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 84% | 50,053 psi | 85% | 2851 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,472 psi | 84% | 2871 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 52,707 psi | 90% | 2936 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 52,054 psi | 89% | 2966 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,244 psi | 60% | 1785 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,227 psi | 87% | 2854 fps | 99.8% |
| IMR 3031 | <<locked>> | 84% | 49,603 psi | 84% | 2838 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 50,270 psi | 86% | 2825 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,125 psi | 85% | 2795 fps | 96.4% |
| IMR 4350 | <<locked>> | 98% | 51,445 psi | 88% | 2867 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,893 psi | 85% | 2822 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,330 psi | 89% | 2927 fps | 99.2% |
| IMR 4895 | <<locked>> | 88% | 52,359 psi | 89% | 2917 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 51,967 psi | 88% | 2848 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,257 psi | 89% | 2867 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,576 psi | 90% | 2825 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 52,939 psi | 90% | 2871 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,388 psi | 89% | 2871 fps | 98.2% |
| Lovex S070 | <<locked>> | 98% | 53,069 psi | 90% | 2900 fps | 97.4% |
| Norma 201 | <<locked>> | 86% | 51,561 psi | 88% | 2841 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,011 psi | 89% | 2844 fps | 100% |
| Norma 203B | <<locked>> | 88% | 50,285 psi | 86% | 2871 fps | 99.6% |
| Norma URP | <<locked>> | 98% | 51,024 psi | 87% | 2923 fps | 99% |
| Ramshot Big Game | <<locked>> | 88% | 50,589 psi | 86% | 2894 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 49,908 psi | 85% | 2917 fps | 97.4% |
| Ramshot TAC | <<locked>> | 84% | 52,272 psi | 89% | 2861 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,648 psi | 88% | 2877 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,736 psi | 90% | 2844 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,520 psi | 60% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,185 psi | 89% | 2867 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 51,082 psi | 87% | 2943 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,821 psi | 87% | 2982 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 51,329 psi | 87% | 2956 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,242 psi | 87% | 2979 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 84% | 52,272 psi | 89% | 2822 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 51,822 psi | 88% | 2835 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 50,546 psi | 86% | 2864 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 51,242 psi | 87% | 2841 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,388 psi | 89% | 2871 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,257 psi | 89% | 2867 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 52,939 psi | 90% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,069 psi | 90% | 2900 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,562 psi | 89% | 2933 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 50,299 psi | 86% | 2831 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 51,314 psi | 87% | 2864 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,069 psi | 90% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,198 psi | 85% | 2736 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,591 psi | 90% | 2822 fps | 97% |
| Somchem S321 | <<locked>> | 82% | 52,939 psi | 90% | 2877 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,620 psi | 90% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,227 psi | 86% | 2831 fps | 99.5% |
| Somchem S355 | <<locked>> | 92% | 50,937 psi | 87% | 2864 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,892 psi | 83% | 2930 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 53,011 psi | 90% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 50,227 psi | 86% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 51,779 psi | 88% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,475 psi | 89% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,605 psi | 90% | 2851 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 50,125 psi | 85% | 2871 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 84% | 52,315 psi | 89% | 2844 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 50,821 psi | 87% | 2818 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 52,431 psi | 89% | 2927 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,118 psi | 70% | 2792 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,604 psi | 86% | 2851 fps | 99.9% |
| Winchester 748 | <<locked>> | 84% | 52,054 psi | 89% | 2890 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 51,387 psi | 87% | 2933 fps | 96.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,562 psi | 57% | 2690 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 51,010 psi | 87% | 2867 fps | 99.8% |
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% | 47,094 psi | 80% | 2700 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,479 psi | 67% | 2615 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,891 psi | 80% | 2776 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,254 psi | 82% | 2749 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 37,376 psi | 64% | 2605 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 36,201 psi | 62% | 2638 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 43,497 psi | 74% | 2726 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 36,898 psi | 63% | 2569 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,629 psi | 78% | 2740 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,803 psi | 78% | 2730 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,421 psi | 67% | 2746 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,019 psi | 75% | 2740 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,405 psi | 62% | 2592 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,189 psi | 67% | 2657 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,463 psi | 62% | 2654 fps | 95.8% |
| Alliant Reloder-17 | 45.5 gr | 80% | 31,328 psi | 53% | 2546 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,212 psi | 53% | 2539 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 39,305 psi | 67% | 2805 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,786 psi | 73% | 2730 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 35,897 psi | 61% | 2592 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 47,993 psi | 82% | 2785 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,572 psi | 81% | 2733 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,251 psi | 75% | 2756 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,139 psi | 84% | 2907 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 80% | 36,970 psi | 63% | 2595 fps | 95.2% |
| Hodgdon H414 | 51.2 gr | 92% | 44,672 psi | 76% | 2808 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 43,874 psi | 75% | 2740 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,183 psi | 53% | 2487 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,813 psi | 68% | 2703 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 94% | 48,414 psi | 82% | 2900 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 44% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,293 psi | 72% | 2694 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 43,366 psi | 74% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,725 psi | 66% | 2605 fps | 97.3% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,992 psi | 80% | 2740 fps | 95.7% |
| IMR 4350 | <<locked>> | 96% | 48,196 psi | 82% | 2812 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 47,108 psi | 80% | 2772 fps | 95.6% |
| IMR 4831 | <<locked>> | 88% | 34,911 psi | 59% | 2589 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 40,132 psi | 68% | 2687 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 80% | 45,629 psi | 78% | 2740 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 42,351 psi | 72% | 2703 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,627 psi | 74% | 2667 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,493 psi | 66% | 2608 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 40,625 psi | 69% | 2651 fps | 95.5% |
| Lovex S070 | <<locked>> | 92% | 43,888 psi | 75% | 2736 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 42,554 psi | 72% | 2680 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,873 psi | 73% | 2690 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,566 psi | 66% | 2644 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 36,448 psi | 62% | 2638 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 38,072 psi | 65% | 2654 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 41,031 psi | 70% | 2743 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 45,571 psi | 78% | 2743 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,107 psi | 77% | 2762 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,211 psi | 84% | 2789 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,397 psi | 45% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,714 psi | 73% | 2694 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,176 psi | 70% | 2759 fps | 97.8% |
| ReloadSwiss RS 60 | 45.5 gr | 80% | 33,431 psi | 57% | 2618 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,911 psi | 61% | 2651 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,885 psi | 66% | 2723 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,137 psi | 79% | 2723 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,466 psi | 69% | 2631 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,620 psi | 57% | 2530 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 47,993 psi | 82% | 2785 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,625 psi | 69% | 2651 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,351 psi | 72% | 2703 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,493 psi | 66% | 2608 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 43,888 psi | 75% | 2736 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,824 psi | 59% | 2582 fps | 96.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,772 psi | 75% | 2713 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,003 psi | 72% | 2694 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,121 psi | 75% | 2641 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,593 psi | 62% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,905 psi | 78% | 2707 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 49,313 psi | 84% | 2818 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,613 psi | 74% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,540 psi | 74% | 2713 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 34,722 psi | 59% | 2543 fps | 97.1% |
| Somchem S365 | <<locked>> | 84% | 28,413 psi | 48% | 2467 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 49,922 psi | 85% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,483 psi | 76% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,972 psi | 68% | 2618 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,480 psi | 69% | 2621 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,866 psi | 56% | 2477 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 35,868 psi | 61% | 2589 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 45,745 psi | 78% | 2736 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 39,160 psi | 67% | 2612 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 37,637 psi | 64% | 2644 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 33,518 psi | 57% | 2618 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,372 psi | 53% | 2454 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 45,237 psi | 77% | 2779 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,962 psi | 77% | 2815 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,473 psi | 54% | 2625 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,568 psi | 71% | 2700 fps | 98.8% |
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 110 powders for .280 Rem. loaded with the .284 | 136gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,785 fps to 3,009 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 (405 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 136.0 gr projectile in 0.284" calls for a 1:9.5 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, Hodgdon H414 rank at the top here: for .280 Rem. with the .284 | 136gr | Peregrine VLR-5 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.