Load Specifications
Bullet Manufacturer:TWENTY-NINE
Bullet Weight:148 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7-6.5 PRCW load data
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:68 Grains of Water
Primer Size:Large Rifle (LR)
Max. allowed Pressure:64,977 psi
Recommended Twist Rate:1:9.0
Load data in caliber 7-6.5 PRCW with .284 | 148gr | TWENTY-NINE ERTP bullet and 104 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 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.
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
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 58,668 psi | 90% | 2749 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,812 psi | 89% | 2782 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,579 psi | 86% | 2799 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,289 psi | 87% | 2789 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,744 psi | 69% | 2697 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 57,914 psi | 89% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 58,073 psi | 89% | 2927 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,522 psi | 89% | 2861 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 58,537 psi | 90% | 2861 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,344 psi | 81% | 2848 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,333 psi | 87% | 2808 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,653 psi | 89% | 2776 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,856 psi | 89% | 2992 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,083 psi | 80% | 2848 fps | 96.5% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,083 psi | 80% | 2848 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,419 psi | 85% | 2835 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,883 psi | 86% | 2858 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,230 psi | 85% | 2930 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,492 psi | 87% | 2963 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,314 psi | 79% | 2838 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,351 psi | 65% | 2726 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,776 psi | 74% | 2900 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,595 psi | 89% | 2881 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 56,376 psi | 87% | 2854 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,144 psi | 86% | 2828 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,856 psi | 89% | 2789 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,043 psi | 86% | 2841 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 58,436 psi | 90% | 2946 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,029 psi | 88% | 2867 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 57,000 psi | 88% | 2927 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 57,377 psi | 88% | 2887 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 58,117 psi | 89% | 2871 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,158 psi | 85% | 2851 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 58,189 psi | 90% | 2907 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,566 psi | 89% | 2966 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 55% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,912 psi | 86% | 2825 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 58,784 psi | 90% | 2851 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 58,262 psi | 90% | 2848 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,885 psi | 89% | 2831 fps | 98.8% |
| IMR 4350 | <<locked>> | 98% | 56,391 psi | 87% | 2854 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,856 psi | 89% | 2858 fps | 98.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 58,262 psi | 90% | 2913 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,261 psi | 88% | 2884 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,333 psi | 87% | 2808 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,943 psi | 89% | 2838 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,942 psi | 88% | 2789 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 58,160 psi | 90% | 2841 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,508 psi | 89% | 2851 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 58,465 psi | 90% | 2887 fps | 99% |
| Norma 201 | <<locked>> | 86% | 56,289 psi | 87% | 2805 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,029 psi | 88% | 2805 fps | 100% |
| Norma 203B | <<locked>> | 90% | 58,697 psi | 90% | 2894 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,116 psi | 88% | 2907 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 47,253 psi | 73% | 2848 fps | 97.1% |
| Norma URP | <<locked>> | 98% | 56,652 psi | 87% | 2910 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,927 psi | 86% | 2871 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,376 psi | 85% | 2910 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 56,623 psi | 87% | 2831 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,579 psi | 87% | 2851 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,305 psi | 88% | 2815 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,245 psi | 56% | 1765 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,188 psi | 88% | 2851 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,782 psi | 87% | 2927 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,318 psi | 87% | 2959 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,551 psi | 89% | 2946 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,000 psi | 88% | 2982 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 57,406 psi | 88% | 2785 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,869 psi | 88% | 2805 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,217 psi | 87% | 2848 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,212 psi | 77% | 2822 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 56,144 psi | 86% | 2828 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,508 psi | 89% | 2851 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,943 psi | 89% | 2838 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 58,160 psi | 90% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 58,465 psi | 90% | 2887 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,682 psi | 89% | 2904 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,376 psi | 85% | 2815 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,159 psi | 86% | 2835 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,682 psi | 89% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 58,131 psi | 89% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,682 psi | 89% | 2805 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,719 psi | 77% | 2815 fps | 96.2% |
| Somchem S321 | <<locked>> | 82% | 57,972 psi | 89% | 2844 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 57,043 psi | 88% | 2736 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 58,711 psi | 90% | 2854 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,217 psi | 87% | 2841 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,056 psi | 85% | 2913 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,937 psi | 78% | 2802 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 82% | 57,188 psi | 88% | 2697 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,986 psi | 89% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,811 psi | 87% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,479 psi | 88% | 2782 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,595 psi | 89% | 2815 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,593 psi | 86% | 2854 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 56,884 psi | 88% | 2808 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,724 psi | 86% | 2782 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 58,073 psi | 89% | 2910 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,891 psi | 72% | 2802 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,637 psi | 86% | 2831 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,348 psi | 88% | 2858 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 57,000 psi | 88% | 2927 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,087 psi | 59% | 2749 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,072 psi | 86% | 2844 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 51,837 psi | 80% | 2664 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,585 psi | 69% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,808 psi | 80% | 2746 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,482 psi | 67% | 2575 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 36,376 psi | 56% | 2533 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,134 psi | 65% | 2592 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,270 psi | 48% | 2428 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,863 psi | 74% | 2710 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,640 psi | 63% | 2562 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 49,008 psi | 75% | 2792 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,966 psi | 77% | 2713 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,676 psi | 78% | 2687 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,714 psi | 67% | 2753 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,791 psi | 75% | 2792 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,791 psi | 75% | 2792 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,393 psi | 62% | 2582 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,511 psi | 67% | 2651 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,401 psi | 48% | 2438 fps | 95.1% |
| Alliant Reloder-17 | 45.8 gr | 80% | 35,099 psi | 54% | 2562 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,167 psi | 74% | 2782 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,211 psi | 45% | 2405 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,518 psi | 52% | 2579 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,195 psi | 73% | 2717 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,292 psi | 62% | 2589 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 43,787 psi | 67% | 2618 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,401 psi | 79% | 2694 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,023 psi | 75% | 2736 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 54,404 psi | 84% | 2887 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,017 psi | 63% | 2595 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 40,959 psi | 63% | 2644 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 47,181 psi | 73% | 2720 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 48,370 psi | 74% | 2720 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,848 psi | 44% | 2339 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,396 psi | 68% | 2694 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 43,047 psi | 66% | 2713 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,687 psi | 41% | 1542 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,180 psi | 71% | 2667 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 48,312 psi | 74% | 2707 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,714 psi | 66% | 2595 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,107 psi | 69% | 2615 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 44,106 psi | 68% | 2648 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,598 psi | 66% | 2595 fps | 95.7% |
| IMR 4831 | <<locked>> | 82% | 32,518 psi | 50% | 2444 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 44,614 psi | 69% | 2677 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,966 psi | 77% | 2713 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,340 psi | 73% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,500 psi | 73% | 2641 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,772 psi | 66% | 2598 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,434 psi | 58% | 2493 fps | 95.8% |
| Lovex S070 | <<locked>> | 86% | 40,205 psi | 62% | 2572 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 46,775 psi | 72% | 2657 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,036 psi | 72% | 2661 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,902 psi | 66% | 2638 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 50,082 psi | 77% | 2792 fps | 95.8% |
| Norma MRP | <<locked>> | 96% | 41,481 psi | 64% | 2730 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,531 psi | 49% | 2428 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 42,511 psi | 65% | 2651 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,478 psi | 58% | 2579 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 49,806 psi | 77% | 2726 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,661 psi | 76% | 2746 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,621 psi | 83% | 2759 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 42% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,292 psi | 64% | 2575 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,209 psi | 71% | 2756 fps | 99.4% |
| ReloadSwiss RS 60 | 45.8 gr | 80% | 37,333 psi | 57% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,170 psi | 51% | 2497 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 35,259 psi | 54% | 2556 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 50,894 psi | 78% | 2690 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,570 psi | 69% | 2612 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,014 psi | 59% | 2536 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 46,934 psi | 72% | 2766 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 43,787 psi | 67% | 2618 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,434 psi | 58% | 2493 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,340 psi | 73% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,772 psi | 66% | 2598 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,205 psi | 62% | 2572 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,957 psi | 60% | 2585 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,167 psi | 74% | 2700 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,267 psi | 71% | 2680 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,993 psi | 74% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,161 psi | 62% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,611 psi | 64% | 2539 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,499 psi | 72% | 2759 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 54,172 psi | 83% | 2792 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,572 psi | 73% | 2602 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,051 psi | 74% | 2697 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,667 psi | 60% | 2539 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,224 psi | 43% | 2379 fps | 97.3% |
| Somchem S385 | <<locked>> | 94% | 41,858 psi | 64% | 2638 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 53,954 psi | 83% | 2654 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,385 psi | 74% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,324 psi | 68% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,773 psi | 69% | 2598 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,854 psi | 57% | 2477 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,953 psi | 51% | 2431 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,937 psi | 77% | 2707 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,091 psi | 66% | 2589 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,387 psi | 50% | 2431 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 86% | 29,544 psi | 45% | 2425 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,547 psi | 50% | 2408 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 50,082 psi | 77% | 2756 fps | 100% |
| Winchester 760 | 48.2 gr | 86% | 40,959 psi | 63% | 2644 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,441 psi | 42% | 2425 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,788 psi | 70% | 2684 fps | 99.8% |
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 104 powders for 7-6.5 PRCW loaded with the .284 | 148gr | TWENTY-NINE ERTP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,992 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 148.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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, Winchester 760 rank at the top here: for 7-6.5 PRCW with the .284 | 148gr | TWENTY-NINE ERTP 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.