Load Specifications
Load data in caliber 6 mm GT with .243 | 85gr | Frontier PH HPFB bullet and 91 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 52 and Hodgdon LEVERevolution.
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>> | 88% | 52,881 psi | 85% | 2976 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 56,043 psi | 90% | 3117 fps | 98.5% |
| Accurate 2460 | <<locked>> | 86% | 54,505 psi | 88% | 3038 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 53,693 psi | 87% | 3035 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,750 psi | 85% | 3051 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 53,243 psi | 86% | 3071 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,150 psi | 73% | 2989 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 84% | 56,101 psi | 90% | 2969 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 52,808 psi | 85% | 2936 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,288 psi | 89% | 3107 fps | 99% |
| ADI AR 2208 | <<locked>> | 98% | 55,985 psi | 90% | 3094 fps | 98.6% |
| ADI AR 2219 | <<locked>> | 82% | 53,171 psi | 86% | 3041 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,331 psi | 88% | 3058 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 90% | 53,809 psi | 87% | 3048 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 55,651 psi | 90% | 3173 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,766 psi | 88% | 3215 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,274 psi | 89% | 3117 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 55,680 psi | 90% | 3028 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 56,028 psi | 90% | 3140 fps | 98.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,513 psi | 73% | 3005 fps | 96.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,301 psi | 84% | 3169 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,259 psi | 89% | 2959 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 55,172 psi | 89% | 3117 fps | 98.2% |
| Bofors RP3 | <<locked>> | 98% | 55,912 psi | 90% | 3136 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,417 psi | 86% | 2999 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 90% | 53,243 psi | 86% | 3087 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 88% | 54,853 psi | 88% | 3182 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 86% | 55,100 psi | 89% | 3071 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,576 psi | 85% | 3038 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,708 psi | 87% | 3084 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 92% | 55,782 psi | 90% | 3120 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,437 psi | 67% | 2877 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,462 psi | 88% | 3146 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,563 psi | 56% | 1883 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,911 psi | 87% | 3071 fps | 99.2% |
| IMR 3031 | <<locked>> | 92% | 54,592 psi | 88% | 3110 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,521 psi | 90% | 3081 fps | 98.8% |
| IMR 4198 | <<locked>> | 84% | 53,055 psi | 86% | 2946 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 54,027 psi | 87% | 3120 fps | 99% |
| IMR 8208 XBR | <<locked>> | 90% | 54,331 psi | 88% | 3058 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 86% | 54,882 psi | 89% | 3054 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 92% | 54,215 psi | 87% | 3084 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,201 psi | 89% | 3031 fps | 99% |
| Lovex S062 | <<locked>> | 96% | 54,998 psi | 89% | 3081 fps | 99.7% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,662 psi | 82% | 2999 fps | 95.8% |
| Norma 200 | <<locked>> | 82% | 55,811 psi | 90% | 3002 fps | 100% |
| Norma 201 | <<locked>> | 92% | 53,766 psi | 87% | 3048 fps | 99.6% |
| Norma 202 | <<locked>> | 92% | 54,157 psi | 87% | 3061 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,085 psi | 89% | 3123 fps | 99.1% |
| Norma URPᴾ | <<locked>> | 100% | 45,368 psi | 73% | 2989 fps | 96% |
| Ramshot Big Game | <<locked>> | 94% | 52,359 psi | 84% | 3094 fps | 98.6% |
| Ramshot TAC | <<locked>> | 90% | 55,027 psi | 89% | 3068 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,128 psi | 87% | 3091 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 88% | 56,014 psi | 90% | 3064 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,693 psi | 56% | 1926 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,331 psi | 88% | 3054 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,665 psi | 88% | 3064 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 55,956 psi | 90% | 3209 fps | 98.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,941 psi | 90% | 3245 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 55,071 psi | 89% | 3048 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,360 psi | 88% | 3048 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,230 psi | 89% | 3117 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,662 psi | 82% | 2999 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,215 psi | 87% | 3084 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 54,998 psi | 89% | 3081 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 53,983 psi | 87% | 3012 fps | 99.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,043 psi | 90% | 2710 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,171 psi | 86% | 3045 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,954 psi | 87% | 3130 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,417 psi | 86% | 3002 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 53,316 psi | 86% | 3041 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,650 psi | 87% | 3071 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 55,999 psi | 90% | 3002 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,564 psi | 90% | 2992 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 56,028 psi | 90% | 3104 fps | 99.8% |
| Somchem S335 | <<locked>> | 92% | 54,926 psi | 89% | 2995 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 52,721 psi | 85% | 3038 fps | 98.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,854 psi | 90% | 3117 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,335 psi | 65% | 2930 fps | 98.1% |
| Vihtavuori N130 | <<locked>> | 88% | 55,796 psi | 90% | 2976 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 55,840 psi | 90% | 2989 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,069 psi | 86% | 3022 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,549 psi | 88% | 3035 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,085 psi | 87% | 3048 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,805 psi | 77% | 2992 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 90% | 55,100 psi | 89% | 3064 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 94% | 53,171 psi | 86% | 3031 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,876 psi | 76% | 2992 fps | 96.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,182 psi | 79% | 2982 fps | 98.7% |
| Winchester 748 | <<locked>> | 90% | 54,302 psi | 88% | 3110 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,142 psi | 86% | 3077 fps | 99.2% |
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% | 40,930 psi | 66% | 2769 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 52,678 psi | 85% | 3058 fps | 98% |
| Accurate 2460 | <<locked>> | 80% | 44,657 psi | 72% | 2874 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 33,605 psi | 54% | 2664 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 39,726 psi | 64% | 2812 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 31,778 psi | 51% | 2638 fps | 97.8% |
| Accurate 4350 | <<locked>> | 98% | 42,192 psi | 68% | 2933 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 49,313 psi | 80% | 2864 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,676 psi | 80% | 2884 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 37,666 psi | 61% | 2759 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 88% | 41,147 psi | 66% | 2818 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 49,487 psi | 80% | 2982 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,624 psi | 64% | 2779 fps | 97.3% |
| Alliant AR-Comp | <<locked>> | 80% | 38,682 psi | 62% | 2799 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,730 psi | 74% | 2992 fps | 98.1% |
| Alliant Power Pro 2000-MR | 33.9 gr | 86% | 41,553 psi | 67% | 2943 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 35,447 psi | 57% | 2726 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,267 psi | 75% | 2881 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 40,712 psi | 66% | 2848 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,496 psi | 69% | 2936 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 90% | 37,724 psi | 61% | 2854 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,559 psi | 78% | 2858 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,047 psi | 68% | 2871 fps | 95.3% |
| Bofors RP3 | <<locked>> | 84% | 34,679 psi | 56% | 2720 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,916 psi | 68% | 2785 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,942 psi | 61% | 2792 fps | 97.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,481 psi | 67% | 2923 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 45,266 psi | 73% | 2907 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,195 psi | 75% | 2930 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 44,266 psi | 71% | 2910 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 37,884 psi | 61% | 2772 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 36,622 psi | 59% | 2766 fps | 95.2% |
| Hodgdon LEVERevolution | 30.9 gr | 80% | 33,823 psi | 55% | 2717 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,643 psi | 41% | 1686 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,506 psi | 59% | 2720 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 36,680 psi | 59% | 2785 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 40,654 psi | 66% | 2802 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 47,239 psi | 76% | 2854 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 36,840 psi | 59% | 2772 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 39,624 psi | 64% | 2779 fps | 97.3% |
| Lovex D073.5 | <<locked>> | 80% | 44,527 psi | 72% | 2877 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 35,911 psi | 58% | 2736 fps | 97.9% |
| Lovex S060 | <<locked>> | 80% | 38,421 psi | 62% | 2707 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 33,286 psi | 54% | 2638 fps | 95.3% |
| Lovex S065 | <<locked>> | 98% | 47,732 psi | 77% | 2943 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 52,547 psi | 85% | 2956 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,057 psi | 60% | 2720 fps | 96.6% |
| Norma 202 | <<locked>> | 80% | 36,869 psi | 59% | 2736 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 37,608 psi | 61% | 2782 fps | 95.3% |
| Norma URP | <<locked>> | 98% | 42,612 psi | 69% | 2933 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 86% | 39,755 psi | 64% | 2848 fps | 95.7% |
| Ramshot TAC | <<locked>> | 86% | 48,225 psi | 78% | 2946 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,841 psi | 63% | 2792 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,047 psi | 69% | 2828 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,846 psi | 42% | 1726 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,556 psi | 72% | 2881 fps | 99.3% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 51,082 psi | 82% | 3005 fps | 95% |
| ReloadSwiss RS 52 | 32.1 gr | 84% | 39,639 psi | 64% | 2894 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 32,822 psi | 53% | 2736 fps | 96.2% |
| Rottweil R 901 | <<locked>> | 80% | 40,553 psi | 65% | 2782 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 35,302 psi | 57% | 2671 fps | 96% |
| Rottweil R 903 | <<locked>> | 86% | 34,853 psi | 56% | 2717 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 47,732 psi | 77% | 2943 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,911 psi | 58% | 2736 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 33,286 psi | 54% | 2638 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,369 psi | 76% | 2900 fps | 98.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,229 psi | 86% | 2671 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,140 psi | 81% | 2992 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 38,624 psi | 62% | 2828 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,094 psi | 76% | 2900 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 46,398 psi | 75% | 2917 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 38,914 psi | 63% | 2785 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,595 psi | 62% | 2694 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,633 psi | 51% | 2543 fps | 98.3% |
| Somchem S321 | <<locked>> | 80% | 42,685 psi | 69% | 2864 fps | 98.3% |
| Somchem S335 | <<locked>> | 80% | 38,218 psi | 62% | 2697 fps | 99.4% |
| Somchem S341 | <<locked>> | 80% | 37,376 psi | 60% | 2736 fps | 95% |
| Somchem S355 | <<locked>> | 86% | 36,172 psi | 58% | 2733 fps | 95.4% |
| Somchem S365 | <<locked>> | 94% | 33,301 psi | 54% | 2749 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 43,772 psi | 71% | 2785 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,682 psi | 62% | 2700 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,895 psi | 55% | 2667 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 34,925 psi | 56% | 2667 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 84% | 32,213 psi | 52% | 2612 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 98% | 44,933 psi | 72% | 2936 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 39,436 psi | 64% | 2772 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 80% | 33,721 psi | 54% | 2651 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 98% | 44,077 psi | 71% | 2940 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 37,927 psi | 61% | 2749 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 38,464 psi | 62% | 2812 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,302 psi | 57% | 2720 fps | 95.2% |
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 91 powders for 6 mm GT loaded with the .243 | 85gr | Frontier PH HPFB. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,245 fps. Accurate 4350 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 52, Hodgdon LEVERevolution rank at the top here: for 6 mm GT with the .243 | 85gr | Frontier PH HPFB 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.