Load Specifications
Bullet:.243 | 105gr | Nosler RDF
Bullet Manufacturer:Nosler
Bullet Weight:105 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:6 mm GT load data
Case Length (l3):1.725"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:43.5 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:24"
Max. allowed Pressure:62,001 psi
Recommended Twist Rate:1:8.5
Load data in caliber 6 mm GT with .243 | 105gr | Nosler RDF bullet and 98 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, ReloadSwiss RS 60 and Alliant Reloder-17.
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 2015 | <<locked>> | 84% | 53,490 psi | 86% | 2680 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,303 psi | 89% | 2753 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,303 psi | 89% | 2749 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,664 psi | 87% | 2766 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,607 psi | 88% | 2743 fps | 96.7% |
| Accurate 4064 | <<locked>> | 92% | 55,129 psi | 89% | 2795 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,085 psi | 89% | 2877 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 88% | 55,970 psi | 90% | 2828 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 53,722 psi | 87% | 2779 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,201 psi | 89% | 2782 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 56,014 psi | 90% | 2759 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,753 psi | 90% | 2949 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 53,359 psi | 86% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,911 psi | 87% | 2818 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,721 psi | 85% | 2877 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,838 psi | 87% | 2917 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,710 psi | 61% | 2615 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,858 psi | 68% | 2766 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,637 psi | 90% | 2841 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 53,766 psi | 87% | 2812 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 54,389 psi | 88% | 2782 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,635 psi | 87% | 2717 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,230 psi | 87% | 2808 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,431 psi | 85% | 2851 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 55,738 psi | 90% | 2772 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 55,056 psi | 89% | 2828 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 98% | 54,433 psi | 88% | 2874 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 96% | 55,201 psi | 89% | 2835 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 86% | 53,243 psi | 86% | 2792 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,095 psi | 79% | 2756 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,883 psi | 90% | 2874 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,114 psi | 89% | 2907 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,549 psi | 57% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,375 psi | 88% | 2792 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 52,837 psi | 85% | 2772 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,229 psi | 86% | 2762 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,171 psi | 86% | 2736 fps | 97.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,389 psi | 88% | 2805 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,924 psi | 85% | 2762 fps | 97.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,721 psi | 83% | 2812 fps | 99.3% |
| IMR 4895 | <<locked>> | 90% | 55,274 psi | 89% | 2848 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 55,201 psi | 89% | 2782 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,274 psi | 89% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,811 psi | 90% | 2805 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,506 psi | 90% | 2756 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,970 psi | 90% | 2802 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,506 psi | 90% | 2808 fps | 98.8% |
| Lovex S070 | <<locked>> | 98% | 52,547 psi | 85% | 2782 fps | 97.4% |
| Norma 201 | <<locked>> | 88% | 54,723 psi | 88% | 2776 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,317 psi | 89% | 2779 fps | 100% |
| Norma 203B | <<locked>> | 90% | 53,084 psi | 86% | 2805 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 54,041 psi | 87% | 2864 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 53,780 psi | 87% | 2835 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,562 psi | 85% | 2854 fps | 98.1% |
| Ramshot TAC | <<locked>> | 86% | 55,303 psi | 89% | 2799 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,810 psi | 88% | 2815 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,999 psi | 90% | 2782 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,839 psi | 58% | 1742 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,491 psi | 88% | 2759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,347 psi | 89% | 2808 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,085 psi | 87% | 2881 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,940 psi | 87% | 2920 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,418 psi | 88% | 2897 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,273 psi | 88% | 2920 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 55,724 psi | 90% | 2756 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 55,434 psi | 89% | 2776 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 53,635 psi | 87% | 2805 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,389 psi | 88% | 2782 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,506 psi | 90% | 2808 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,811 psi | 90% | 2805 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,970 psi | 90% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 52,547 psi | 85% | 2782 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,477 psi | 89% | 2867 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,505 psi | 86% | 2772 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,143 psi | 87% | 2799 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,200 psi | 86% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,939 psi | 85% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,782 psi | 90% | 2759 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 52,750 psi | 85% | 2762 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,651 psi | 90% | 2713 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 53,476 psi | 86% | 2772 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 53,969 psi | 87% | 2799 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,472 psi | 78% | 2815 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 52,895 psi | 85% | 2635 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,388 psi | 86% | 2657 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,534 psi | 88% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,854 psi | 90% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,463 psi | 89% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 52,866 psi | 85% | 2805 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 86% | 55,506 psi | 90% | 2779 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,708 psi | 87% | 2749 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,811 psi | 90% | 2867 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,017 psi | 66% | 2694 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,272 psi | 86% | 2785 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,158 psi | 89% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,433 psi | 88% | 2874 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,533 psi | 54% | 2598 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,012 psi | 87% | 2805 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% | 47,239 psi | 76% | 2592 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,590 psi | 83% | 2703 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,190 psi | 65% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,949 psi | 76% | 2667 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,008 psi | 77% | 2638 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 37,971 psi | 61% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,866 psi | 55% | 2490 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 43,613 psi | 70% | 2625 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 36,970 psi | 60% | 2474 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,643 psi | 74% | 2631 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 45,542 psi | 73% | 2618 fps | 100% |
| Alliant Power Pro 2000-MR | 31 gr | 80% | 39,523 psi | 64% | 2648 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,550 psi | 59% | 2497 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,363 psi | 63% | 2559 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,447 psi | 56% | 2503 fps | 95.3% |
| Alliant Reloder-17 | 30.5 gr | 80% | 31,531 psi | 51% | 2457 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,241 psi | 50% | 2451 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,289 psi | 59% | 2635 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,641 psi | 69% | 2621 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 36,114 psi | 58% | 2497 fps | 98.3% |
| Bofors RP7 | <<locked>> | 92% | 47,703 psi | 77% | 2674 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,239 psi | 76% | 2618 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,367 psi | 72% | 2654 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,834 psi | 79% | 2792 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 52,359 psi | 84% | 2726 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,970 psi | 60% | 2497 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 92% | 44,367 psi | 72% | 2703 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 94% | 51,938 psi | 84% | 2782 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,976 psi | 71% | 2635 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,399 psi | 47% | 2346 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,900 psi | 64% | 2605 fps | 99% |
| Hodgdon Superformance | <<locked>> | 94% | 47,819 psi | 77% | 2782 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,310 psi | 42% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,206 psi | 68% | 2585 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 43,468 psi | 70% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,769 psi | 63% | 2507 fps | 97.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,077 psi | 71% | 2579 fps | 95.2% |
| IMR 4350 | <<locked>> | 96% | 47,776 psi | 77% | 2697 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,903 psi | 71% | 2605 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 35,099 psi | 57% | 2500 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,292 psi | 65% | 2589 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 45,643 psi | 74% | 2631 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 51,576 psi | 83% | 2713 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,670 psi | 69% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,714 psi | 71% | 2562 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 38,827 psi | 63% | 2513 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 38,392 psi | 62% | 2503 fps | 95.1% |
| Lovex S070 | <<locked>> | 92% | 43,830 psi | 71% | 2631 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 42,873 psi | 69% | 2582 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 42,902 psi | 69% | 2585 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,754 psi | 63% | 2549 fps | 98% |
| Norma URP | <<locked>> | 86% | 34,185 psi | 55% | 2487 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 38,203 psi | 62% | 2559 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 40,553 psi | 65% | 2635 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,629 psi | 74% | 2638 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,005 psi | 73% | 2657 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,008 psi | 79% | 2674 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 43% | 1555 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,271 psi | 83% | 2713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,844 psi | 69% | 2592 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,988 psi | 66% | 2654 fps | 98% |
| ReloadSwiss RS 60 | 30.5 gr | 80% | 33,576 psi | 54% | 2523 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,882 psi | 58% | 2556 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,972 psi | 63% | 2628 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 46,514 psi | 75% | 2615 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,495 psi | 65% | 2526 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 34,098 psi | 55% | 2444 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 92% | 47,703 psi | 77% | 2674 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,392 psi | 62% | 2503 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,670 psi | 69% | 2605 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,827 psi | 63% | 2513 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 43,830 psi | 71% | 2631 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,853 psi | 56% | 2490 fps | 96.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,714 psi | 71% | 2608 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,901 psi | 68% | 2589 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,092 psi | 71% | 2533 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,608 psi | 59% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,774 psi | 74% | 2602 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 49,240 psi | 79% | 2710 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,888 psi | 71% | 2536 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,468 psi | 70% | 2608 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 35,070 psi | 57% | 2454 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 27,079 psi | 44% | 2336 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 49,777 psi | 80% | 2592 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,382 psi | 72% | 2526 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,987 psi | 64% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,770 psi | 66% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,272 psi | 54% | 2392 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 35,926 psi | 58% | 2497 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 45,658 psi | 74% | 2628 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 39,059 psi | 63% | 2510 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 35,404 psi | 57% | 2497 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 31,531 psi | 51% | 2474 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,486 psi | 48% | 2313 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 45,005 psi | 73% | 2667 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 44,773 psi | 72% | 2710 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,515 psi | 48% | 2467 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,582 psi | 67% | 2598 fps | 99% |
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 98 powders for 6 mm GT loaded with the .243 | 105gr | Nosler RDF. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,949 fps. Accurate 4350 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 6 mm GT with the .243 | 105gr | Nosler RDF 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.