Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 150gr | Barnes TTSX BT bullet and 95 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% | 51,097 psi | 85% | 2602 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,547 psi | 87% | 2667 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 51,126 psi | 85% | 2687 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,272 psi | 87% | 2671 fps | 96.8% |
| Accurate 4064 | <<locked>> | 90% | 52,678 psi | 88% | 2713 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 52,649 psi | 87% | 2799 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 53,751 psi | 89% | 2749 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 51,634 psi | 86% | 2703 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 52,910 psi | 88% | 2703 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,606 psi | 89% | 2677 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,272 psi | 89% | 2864 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 51,430 psi | 85% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 51,822 psi | 86% | 2740 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,346 psi | 90% | 2858 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 51,880 psi | 86% | 2838 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,479 psi | 64% | 2595 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,917 psi | 71% | 2749 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,461 psi | 89% | 2762 fps | 99.7% |
| Bofors RP3 | <<locked>> | 90% | 51,503 psi | 86% | 2733 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 52,112 psi | 87% | 2707 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 82% | 51,242 psi | 85% | 2638 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,735 psi | 86% | 2726 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,896 psi | 90% | 2825 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 52,605 psi | 87% | 2746 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 96% | 52,098 psi | 87% | 2795 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 94% | 53,200 psi | 88% | 2762 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 54,302 psi | 90% | 2759 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,256 psi | 83% | 2730 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,679 psi | 89% | 2792 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 52,866 psi | 88% | 2831 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,491 psi | 59% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 52,069 psi | 87% | 2713 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,215 psi | 90% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,360 psi | 90% | 2736 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,172 psi | 90% | 2713 fps | 97.9% |
| IMR 4350 | <<locked>> | 98% | 52,214 psi | 87% | 2733 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,099 psi | 90% | 2740 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,417 psi | 89% | 2792 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 53,156 psi | 88% | 2772 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 52,910 psi | 88% | 2703 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 53,171 psi | 88% | 2723 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,447 psi | 89% | 2680 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 54,041 psi | 90% | 2730 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 53,098 psi | 88% | 2730 fps | 98.8% |
| Lovex S070 | <<locked>> | 98% | 53,809 psi | 89% | 2762 fps | 98.1% |
| Norma 201 | <<locked>> | 86% | 52,228 psi | 87% | 2694 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,098 psi | 88% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,375 psi | 90% | 2779 fps | 100% |
| Norma 204 | <<locked>> | 98% | 52,678 psi | 88% | 2776 fps | 95.8% |
| Norma URP | <<locked>> | 98% | 51,837 psi | 86% | 2785 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 51,387 psi | 85% | 2753 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,462 psi | 90% | 2838 fps | 98.8% |
| Ramshot TAC | <<locked>> | 84% | 52,924 psi | 88% | 2720 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 52,547 psi | 87% | 2736 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,664 psi | 89% | 2707 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,824 psi | 60% | 1713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,171 psi | 88% | 2733 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 52,098 psi | 87% | 2802 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 51,547 psi | 86% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,504 psi | 87% | 2822 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 52,127 psi | 87% | 2844 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 53,098 psi | 88% | 2674 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,866 psi | 88% | 2694 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 51,372 psi | 85% | 2723 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 52,112 psi | 87% | 2707 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 96% | 53,098 psi | 88% | 2730 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 53,171 psi | 88% | 2723 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,041 psi | 90% | 2730 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,809 psi | 89% | 2762 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,505 psi | 89% | 2789 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 51,271 psi | 85% | 2697 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 52,112 psi | 87% | 2720 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,056 psi | 90% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,302 psi | 90% | 2638 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,534 psi | 89% | 2687 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 53,708 psi | 89% | 2730 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 53,229 psi | 88% | 2635 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,879 psi | 85% | 2690 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 51,895 psi | 86% | 2723 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,734 psi | 83% | 2789 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 53,896 psi | 90% | 2602 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,331 psi | 90% | 2625 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 52,736 psi | 88% | 2661 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,490 psi | 89% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,287 psi | 89% | 2703 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 51,169 psi | 85% | 2733 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 84% | 53,055 psi | 88% | 2700 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 51,750 psi | 86% | 2677 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,577 psi | 89% | 2789 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,047 psi | 70% | 2667 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 51,358 psi | 85% | 2717 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 53,200 psi | 88% | 2749 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 52,417 psi | 87% | 2799 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,360 psi | 57% | 2592 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,040 psi | 86% | 2730 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 2015 | <<locked>> | 80% | 47,848 psi | 79% | 2559 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,190 psi | 67% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,601 psi | 79% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,861 psi | 76% | 2562 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 38,029 psi | 63% | 2474 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,140 psi | 53% | 2408 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 44,251 psi | 74% | 2595 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,608 psi | 62% | 2448 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,383 psi | 77% | 2602 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 46,789 psi | 78% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,350 psi | 67% | 2625 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,304 psi | 62% | 2470 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,929 psi | 66% | 2530 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,677 psi | 54% | 2421 fps | 95.1% |
| Alliant Reloder-17 | 42.7 gr | 80% | 31,995 psi | 53% | 2434 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,878 psi | 50% | 2379 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,563 psi | 57% | 2556 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,555 psi | 72% | 2598 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 36,738 psi | 61% | 2470 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 45,890 psi | 76% | 2602 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,211 psi | 80% | 2592 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,281 psi | 75% | 2625 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,212 psi | 83% | 2766 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 37,594 psi | 62% | 2474 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 42,641 psi | 71% | 2628 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 46,644 psi | 77% | 2651 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 44,643 psi | 74% | 2605 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,050 psi | 47% | 2274 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,669 psi | 68% | 2575 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 45,571 psi | 76% | 2703 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,208 psi | 44% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,018 psi | 71% | 2559 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 44,280 psi | 74% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,494 psi | 66% | 2480 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,003 psi | 70% | 2503 fps | 95.1% |
| IMR 4350 | <<locked>> | 94% | 46,079 psi | 77% | 2628 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,264 psi | 70% | 2536 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 33,446 psi | 56% | 2421 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 40,901 psi | 68% | 2559 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 46,383 psi | 77% | 2602 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,424 psi | 72% | 2575 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,367 psi | 74% | 2533 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 39,305 psi | 65% | 2484 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 38,841 psi | 65% | 2474 fps | 95.7% |
| Lovex S070 | <<locked>> | 90% | 41,843 psi | 70% | 2556 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 43,134 psi | 72% | 2546 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,801 psi | 73% | 2556 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,291 psi | 65% | 2516 fps | 98.5% |
| Norma 204 | <<locked>> | 96% | 49,356 psi | 82% | 2723 fps | 95% |
| Norma URP | <<locked>> | 84% | 32,692 psi | 54% | 2411 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,001 psi | 65% | 2533 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 38,957 psi | 65% | 2559 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 46,325 psi | 77% | 2608 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,818 psi | 76% | 2628 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,212 psi | 83% | 2654 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,600 psi | 44% | 1532 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,669 psi | 68% | 2513 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,018 psi | 70% | 2628 fps | 98.6% |
| ReloadSwiss RS 60 | 42.7 gr | 80% | 34,127 psi | 57% | 2500 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,360 psi | 57% | 2480 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,985 psi | 61% | 2546 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 47,123 psi | 78% | 2585 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,205 psi | 68% | 2503 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,490 psi | 57% | 2418 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 45,890 psi | 76% | 2602 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,841 psi | 65% | 2474 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,424 psi | 72% | 2575 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,305 psi | 65% | 2484 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 41,843 psi | 70% | 2556 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,505 psi | 59% | 2464 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,570 psi | 74% | 2585 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,728 psi | 71% | 2562 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,744 psi | 74% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,159 psi | 62% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,743 psi | 73% | 2526 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 50,140 psi | 83% | 2677 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,179 psi | 73% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,324 psi | 74% | 2582 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 35,302 psi | 59% | 2421 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 25,483 psi | 42% | 2251 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 50,589 psi | 84% | 2559 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,136 psi | 75% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,669 psi | 68% | 2484 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,408 psi | 69% | 2493 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,692 psi | 56% | 2362 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 34,272 psi | 57% | 2418 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 46,630 psi | 77% | 2602 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,769 psi | 66% | 2484 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,591 psi | 56% | 2415 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 92% | 32,053 psi | 53% | 2451 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,776 psi | 49% | 2287 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 46,180 psi | 77% | 2641 fps | 100% |
| Winchester 760 | 47.1 gr | 90% | 42,917 psi | 71% | 2635 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,095 psi | 50% | 2461 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,206 psi | 70% | 2569 fps | 99.3% |
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 112 powders for 7 x 64 Brenneke loaded with the .284 | 150gr | Barnes TTSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,864 fps. Accurate 3100 gives the best case fill at 100 %, and 112 of the 112 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 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-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. ReloadSwiss RS 60, Alliant Reloder-17, Winchester 760 rank at the top here: for 7 x 64 Brenneke with the .284 | 150gr | Barnes TTSX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.