Load Specifications
Load data in caliber 6 mm GT with .243 | 91gr | Peregrine Glider GRM bullet and 92 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.
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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>> | 90% | 55,709 psi | 90% | 2913 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 54,143 psi | 87% | 2936 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 52,547 psi | 85% | 2920 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,170 psi | 84% | 2943 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 55,883 psi | 90% | 3012 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,918 psi | 72% | 2897 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 84% | 55,593 psi | 90% | 2861 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 56,014 psi | 90% | 2884 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 54,795 psi | 88% | 3002 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 98% | 55,738 psi | 90% | 2992 fps | 99% |
| ADI AR 2219 | <<locked>> | 82% | 52,823 psi | 85% | 2933 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,273 psi | 88% | 2959 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 90% | 54,099 psi | 87% | 2946 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 55,869 psi | 90% | 3074 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,360 psi | 88% | 3110 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,042 psi | 89% | 3015 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 55,463 psi | 89% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 55,724 psi | 90% | 3035 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 44,918 psi | 72% | 2904 fps | 96.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,127 psi | 84% | 3071 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 54,810 psi | 88% | 2854 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,694 psi | 88% | 3012 fps | 98.6% |
| Bofors RP3 | <<locked>> | 98% | 55,172 psi | 89% | 3025 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,127 psi | 86% | 2897 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 52,924 psi | 85% | 2986 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 54,795 psi | 88% | 3084 fps | 99% |
| Hodgdon H322 | <<locked>> | 86% | 54,824 psi | 88% | 2963 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,446 psi | 85% | 2936 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,519 psi | 86% | 2986 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 92% | 55,259 psi | 89% | 3015 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,075 psi | 66% | 2785 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 53,969 psi | 87% | 3041 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,534 psi | 56% | 1808 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,476 psi | 86% | 2966 fps | 99.4% |
| IMR 3031 | <<locked>> | 92% | 54,476 psi | 88% | 3005 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,172 psi | 89% | 2976 fps | 99% |
| IMR 4198 | <<locked>> | 84% | 53,185 psi | 86% | 2844 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,772 psi | 69% | 2835 fps | 96.2% |
| IMR 4895 | <<locked>> | 94% | 53,635 psi | 87% | 3015 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 90% | 54,273 psi | 88% | 2959 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 86% | 54,114 psi | 87% | 2943 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 53,737 psi | 87% | 2976 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,100 psi | 89% | 2933 fps | 99.3% |
| Lovex S062 | <<locked>> | 96% | 54,491 psi | 88% | 2976 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,401 psi | 81% | 2904 fps | 96.3% |
| Norma 200 | <<locked>> | 82% | 55,245 psi | 89% | 2894 fps | 100% |
| Norma 201 | <<locked>> | 92% | 53,374 psi | 86% | 2946 fps | 99.8% |
| Norma 202 | <<locked>> | 92% | 53,998 psi | 87% | 2959 fps | 100% |
| Norma 203B | <<locked>> | 96% | 54,824 psi | 88% | 3022 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 45,165 psi | 73% | 2894 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 96% | 55,811 psi | 90% | 3054 fps | 99.3% |
| Ramshot TAC | <<locked>> | 90% | 54,882 psi | 89% | 2969 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,940 psi | 87% | 2989 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 88% | 55,680 psi | 90% | 2963 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,621 psi | 56% | 1847 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,128 psi | 87% | 2949 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,157 psi | 87% | 2963 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 55,941 psi | 90% | 3107 fps | 99.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,767 psi | 90% | 3143 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 44,904 psi | 72% | 2917 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 90% | 54,302 psi | 88% | 2936 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 53,621 psi | 86% | 2940 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,042 psi | 89% | 3015 fps | 99.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,401 psi | 81% | 2904 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 92% | 53,737 psi | 87% | 2976 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 54,491 psi | 88% | 2976 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 53,809 psi | 87% | 2913 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,101 psi | 90% | 2612 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 52,924 psi | 85% | 2940 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,621 psi | 86% | 3028 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,214 psi | 86% | 2897 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,518 psi | 85% | 2936 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,374 psi | 86% | 2972 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 55,724 psi | 90% | 2897 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,709 psi | 90% | 2894 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 55,666 psi | 90% | 2999 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 54,679 psi | 88% | 2894 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 55,970 psi | 90% | 2992 fps | 99.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,651 psi | 90% | 3015 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,089 psi | 65% | 2838 fps | 98.5% |
| Vihtavuori N130 | <<locked>> | 88% | 55,724 psi | 90% | 2871 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 55,622 psi | 90% | 2884 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 52,823 psi | 85% | 2917 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,636 psi | 88% | 2936 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,969 psi | 87% | 2949 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,747 psi | 77% | 2900 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 90% | 55,114 psi | 89% | 2963 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 52,837 psi | 85% | 2930 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,847 psi | 76% | 2904 fps | 96.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,037 psi | 79% | 2890 fps | 99% |
| Winchester 748 | <<locked>> | 90% | 53,998 psi | 87% | 3005 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 52,939 psi | 85% | 2979 fps | 99.4% |
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% | 40,611 psi | 66% | 2674 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,251 psi | 71% | 2776 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 32,590 psi | 53% | 2559 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 39,392 psi | 64% | 2717 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 30,850 psi | 50% | 2536 fps | 98% |
| Accurate 4350 | <<locked>> | 98% | 41,829 psi | 67% | 2838 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 49,458 psi | 80% | 2769 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,835 psi | 80% | 2789 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 37,188 psi | 60% | 2664 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 86% | 38,580 psi | 62% | 2674 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 49,472 psi | 80% | 2884 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,276 psi | 63% | 2684 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 80% | 38,247 psi | 62% | 2697 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,426 psi | 73% | 2890 fps | 98.5% |
| Alliant Power Pro 2000-MR | 32.8 gr | 86% | 41,437 psi | 67% | 2854 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 32,837 psi | 53% | 2582 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,093 psi | 74% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,087 psi | 61% | 2703 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 39,987 psi | 64% | 2792 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 34,664 psi | 56% | 2694 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,312 psi | 78% | 2759 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 38,957 psi | 63% | 2720 fps | 95% |
| Bofors RP3 | <<locked>> | 82% | 32,053 psi | 52% | 2572 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,495 psi | 67% | 2690 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,376 psi | 60% | 2694 fps | 97.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,162 psi | 66% | 2828 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 80% | 45,020 psi | 73% | 2805 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,788 psi | 74% | 2828 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 43,642 psi | 70% | 2808 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 37,463 psi | 60% | 2677 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 36,100 psi | 58% | 2674 fps | 95.8% |
| Hodgdon LEVERevolution | 29.9 gr | 80% | 33,547 psi | 54% | 2631 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,251 psi | 41% | 1611 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,172 psi | 58% | 2628 fps | 96% |
| IMR 3031 | <<locked>> | 80% | 36,564 psi | 59% | 2694 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 37,942 psi | 61% | 2654 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 47,108 psi | 76% | 2753 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 40,030 psi | 65% | 2779 fps | 95.4% |
| IMR 4895 | <<locked>> | 82% | 36,172 psi | 58% | 2674 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 39,276 psi | 63% | 2684 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 80% | 43,859 psi | 71% | 2772 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 35,462 psi | 57% | 2641 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 38,000 psi | 61% | 2612 fps | 96.1% |
| Lovex S062 | <<locked>> | 80% | 32,663 psi | 53% | 2543 fps | 95.8% |
| Lovex S065 | <<locked>> | 98% | 47,311 psi | 76% | 2848 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 51,837 psi | 84% | 2844 fps | 100% |
| Norma 201 | <<locked>> | 80% | 36,376 psi | 59% | 2621 fps | 97% |
| Norma 202 | <<locked>> | 80% | 36,666 psi | 59% | 2644 fps | 99.1% |
| Norma 203B | <<locked>> | 84% | 37,362 psi | 60% | 2690 fps | 95.9% |
| Norma URP | <<locked>> | 98% | 42,308 psi | 68% | 2838 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 84% | 36,854 psi | 59% | 2697 fps | 95.4% |
| Ramshot TAC | <<locked>> | 84% | 44,976 psi | 73% | 2792 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,406 psi | 62% | 2697 fps | 96.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,931 psi | 69% | 2740 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 41% | 1650 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,353 psi | 72% | 2785 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 50,865 psi | 82% | 2907 fps | 95.6% |
| ReloadSwiss RS 52 | 31 gr | 84% | 39,233 psi | 63% | 2799 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 30,414 psi | 49% | 2585 fps | 95.7% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 41,669 psi | 67% | 2851 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 39,958 psi | 64% | 2680 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 34,563 psi | 56% | 2572 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 86% | 34,185 psi | 55% | 2621 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 47,311 psi | 76% | 2848 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,462 psi | 57% | 2641 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 32,663 psi | 53% | 2543 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,934 psi | 76% | 2799 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,171 psi | 86% | 2572 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,719 psi | 80% | 2887 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,013 psi | 58% | 2680 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,108 psi | 76% | 2802 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 42,540 psi | 69% | 2756 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,042 psi | 58% | 2635 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,334 psi | 62% | 2602 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,357 psi | 51% | 2457 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 42,177 psi | 68% | 2766 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 37,637 psi | 61% | 2602 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 36,898 psi | 60% | 2644 fps | 95.6% |
| Somchem S355 | <<locked>> | 84% | 33,257 psi | 54% | 2582 fps | 95% |
| Somchem S365 | <<locked>> | 92% | 30,705 psi | 50% | 2595 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 43,598 psi | 70% | 2687 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,479 psi | 62% | 2608 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,576 psi | 54% | 2572 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 34,490 psi | 56% | 2575 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 29,515 psi | 48% | 2464 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 41,539 psi | 67% | 2782 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 39,073 psi | 63% | 2677 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 33,025 psi | 53% | 2552 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 96% | 40,785 psi | 66% | 2785 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,114 psi | 57% | 2602 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 38,290 psi | 62% | 2720 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,056 psi | 57% | 2631 fps | 95.8% |
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 92 powders for 6 mm GT loaded with the .243 | 91gr | Peregrine Glider GRM. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,143 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,143 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 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 91.0 gr projectile in 0.243" calls for a 1:7.5 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 | 91gr | Peregrine Glider GRM 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.