Load Specifications
Load data in caliber 6 mm GT with .243 | 57gr | CutEdge ESP Raptor bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 and Hodgdon H335.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 86% | 54,462 psi | 88% | 3488 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 54,723 psi | 88% | 3576 fps | 99.9% |
| Accurate 2460 | <<locked>> | 96% | 54,027 psi | 87% | 3583 fps | 98.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,482 psi | 69% | 3406 fps | 99% |
| Accurate 2520ᴾ | <<locked>> | 100% | 54,911 psi | 89% | 3635 fps | 98.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,465 psi | 64% | 3346 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 92% | 54,607 psi | 88% | 3497 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 92% | 55,071 psi | 89% | 3510 fps | 98% |
| ADI AR 2207 | <<locked>> | 90% | 54,418 psi | 88% | 3563 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 53,476 psi | 86% | 3619 fps | 99.1% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 54,273 psi | 88% | 3589 fps | 96.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 51,097 psi | 82% | 3612 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 55,448 psi | 89% | 3625 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 52,953 psi | 85% | 3517 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 53,925 psi | 87% | 3478 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 98% | 54,360 psi | 88% | 3543 fps | 96.9% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 52,185 psi | 84% | 3606 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 96% | 54,998 psi | 89% | 3645 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 94% | 53,200 psi | 86% | 3602 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 88% | 53,287 psi | 86% | 3504 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,865 psi | 51% | 2241 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 48,559 psi | 78% | 3589 fps | 99.1% |
| IMR 4198 | <<locked>> | 94% | 53,476 psi | 86% | 3550 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 53,026 psi | 86% | 3474 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 54,273 psi | 88% | 3589 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 90% | 54,723 psi | 88% | 3612 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 96% | 54,346 psi | 88% | 3579 fps | 97.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 3530 fps | 97% |
| Lovex S053 | <<locked>> | 86% | 54,665 psi | 88% | 3461 fps | 100% |
| Norma 200 | <<locked>> | 92% | 55,564 psi | 90% | 3602 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 49,371 psi | 80% | 3524 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,894 psi | 51% | 2293 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 53,171 psi | 86% | 3507 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 54,911 psi | 89% | 3609 fps | 97.8% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 53,403 psi | 86% | 3576 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 90% | 54,723 psi | 88% | 3612 fps | 97.8% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 48,588 psi | 78% | 3530 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 55,100 psi | 89% | 3281 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 54,041 psi | 87% | 3612 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 53,345 psi | 86% | 3583 fps | 99.5% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 52,881 psi | 85% | 3488 fps | 98.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 42,322 psi | 68% | 3284 fps | 97.2% |
| Somchem S321 | <<locked>> | 96% | 52,692 psi | 85% | 3576 fps | 96.3% |
| Somchem S335ᴾ | <<locked>> | 100% | 51,155 psi | 83% | 3474 fps | 98.7% |
| Vihtavuori N120 | <<locked>> | 90% | 54,476 psi | 88% | 3501 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 55,869 psi | 90% | 3553 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 52,011 psi | 84% | 3491 fps | 99.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,772 psi | 71% | 3425 fps | 99.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 46,702 psi | 75% | 3435 fps | 97.6% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 55,230 psi | 89% | 3596 fps | 96.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 45,368 psi | 73% | 3419 fps | 96.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,519 psi | 86% | 3638 fps | 97.1% |
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 1680 | <<locked>> | 80% | 44,411 psi | 72% | 3301 fps | 99.5% |
| Accurate 2015 | <<locked>> | 84% | 32,416 psi | 52% | 3084 fps | 95.8% |
| Accurate 2460 | <<locked>> | 88% | 40,524 psi | 65% | 3304 fps | 95.3% |
| Accurate 2495 | <<locked>> | 90% | 29,617 psi | 48% | 3064 fps | 95.1% |
| Accurate 2520 | <<locked>> | 94% | 44,106 psi | 71% | 3422 fps | 95.9% |
| Accurate 4064 | <<locked>> | 98% | 36,883 psi | 59% | 3281 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 37,565 psi | 61% | 3133 fps | 96% |
| Accurate LT-32 | <<locked>> | 84% | 43,004 psi | 69% | 3264 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 39,624 psi | 64% | 3278 fps | 100% |
| ADI AR 2219 | 31.2 gr | 82% | 37,565 psi | 61% | 3268 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 98% | 50,981 psi | 82% | 3527 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 26,063 psi | 42% | 2956 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,895 psi | 53% | 3127 fps | 97.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,741 psi | 66% | 3268 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,955 psi | 58% | 3097 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 94% | 47,761 psi | 77% | 3412 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 98% | 48,863 psi | 79% | 3540 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 84% | 36,521 psi | 59% | 3238 fps | 95.3% |
| Hodgdon H335 | 33.9 gr | 86% | 40,147 psi | 65% | 3320 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 41,466 psi | 67% | 3255 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,250 psi | 37% | 2005 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 34,621 psi | 56% | 3248 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 34,635 psi | 56% | 3136 fps | 98.5% |
| IMR 4227 | <<locked>> | 80% | 47,007 psi | 76% | 3363 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 50,981 psi | 82% | 3527 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 84% | 44,077 psi | 71% | 3399 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 92% | 47,239 psi | 76% | 3445 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 96% | 41,698 psi | 67% | 3379 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 45,643 psi | 74% | 3304 fps | 100% |
| Norma 200 | <<locked>> | 80% | 37,101 psi | 60% | 3225 fps | 98.9% |
| Norma 202 | <<locked>> | 94% | 40,683 psi | 66% | 3337 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,105 psi | 37% | 2051 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,934 psi | 76% | 3392 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 44,672 psi | 72% | 3402 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 92% | 41,568 psi | 67% | 3323 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 84% | 44,077 psi | 71% | 3399 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 96% | 41,698 psi | 67% | 3379 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,076 psi | 68% | 3068 fps | 100% |
| SNPE Vectan SP 10 | 33.1 gr | 84% | 41,002 psi | 66% | 3337 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,634 psi | 54% | 3133 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 41,133 psi | 66% | 3248 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 37,144 psi | 60% | 3159 fps | 95.7% |
| Somchem S321 | <<locked>> | 94% | 48,979 psi | 79% | 3504 fps | 95.4% |
| Somchem S335 | <<locked>> | 90% | 37,144 psi | 60% | 3169 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 39,755 psi | 64% | 3232 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,763 psi | 51% | 3022 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 84% | 31,372 psi | 51% | 3018 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 90% | 31,560 psi | 51% | 3114 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 94% | 38,551 psi | 62% | 3251 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 98% | 51,750 psi | 83% | 3530 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 96% | 39,537 psi | 64% | 3284 fps | 95.1% |
| Winchester 748 | <<locked>> | 96% | 46,282 psi | 75% | 3494 fps | 95.4% |
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 52 powders for 6 mm GT loaded with the .243 | 57gr | CutEdge ESP Raptor. Hodgdon H322 delivers the highest muzzle velocity at 3,645 fps; across all powders the maximum-charge window runs from 2,241 fps to 3,645 fps. Accurate 2015 gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 57.0 gr projectile in 0.243" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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. ADI AR 2219, SNPE Vectan SP 10, Hodgdon H335 rank at the top here: for 6 mm GT with the .243 | 57gr | CutEdge ESP Raptor 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.