Load Specifications
Load data in caliber .408 Chey Tac with .408 | 450gr | CutEdge LZR MAX GEN2 bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N570.
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: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 55,085 psi | 86% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,173 psi | 88% | 2526 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 53,998 psi | 85% | 2635 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 57,246 psi | 90% | 2605 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 55,129 psi | 86% | 2625 fps | 100% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 2648 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 49,095 psi | 77% | 2664 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,213 psi | 80% | 2625 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,580 psi | 90% | 2575 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,652 psi | 89% | 2595 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,347 psi | 87% | 2618 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 56,956 psi | 89% | 2566 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 56,826 psi | 89% | 2641 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 57,566 psi | 90% | 2661 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 53,722 psi | 84% | 2703 fps | 99.5% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 44,860 psi | 70% | 2569 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 55,912 psi | 88% | 2598 fps | 99.6% |
| Bofors RP15 | <<locked>> | 92% | 54,694 psi | 86% | 2608 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 56,304 psi | 88% | 2664 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 55,347 psi | 87% | 2618 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 57,740 psi | 90% | 2526 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 54,708 psi | 86% | 2618 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 57,740 psi | 90% | 2585 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 54,592 psi | 86% | 2562 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,246 psi | 90% | 2598 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,653 psi | 90% | 2500 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,796 psi | 87% | 2730 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,507 psi | 59% | 1555 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,188 psi | 88% | 2523 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,521 psi | 89% | 2520 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,419 psi | 87% | 2543 fps | 100% |
| IMR 7828 SSC | <<locked>> | 92% | 57,203 psi | 90% | 2657 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 96% | 57,261 psi | 90% | 2546 fps | 97.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,702 psi | 73% | 2559 fps | 100% |
| Lovex D100ᴾ | <<locked>> | 100% | 56,478 psi | 89% | 2592 fps | 96.3% |
| Lovex S065 | <<locked>> | 82% | 56,376 psi | 88% | 2493 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 54,766 psi | 86% | 2500 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 56,623 psi | 89% | 2536 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,261 psi | 90% | 2585 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 47,369 psi | 74% | 2575 fps | 100% |
| Norma MRP | <<locked>> | 88% | 55,434 psi | 87% | 2631 fps | 100% |
| Norma URP | <<locked>> | 82% | 54,621 psi | 86% | 2513 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 54,259 psi | 85% | 2628 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 57,043 psi | 89% | 2575 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,333 psi | 88% | 2612 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,464 psi | 60% | 1594 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,376 psi | 88% | 2556 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,868 psi | 86% | 2585 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 56,159 psi | 88% | 2723 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,216 psi | 87% | 2700 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 54,433 psi | 85% | 2530 fps | 100% |
| Rottweil R 905 | <<locked>> | 88% | 56,275 psi | 88% | 2585 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 57,740 psi | 90% | 2526 fps | 100% |
| Shooters World 50 BMGᴾ | <<locked>> | 100% | 56,478 psi | 89% | 2592 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,376 psi | 88% | 2493 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 54,766 psi | 86% | 2500 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 40,118 psi | 63% | 2405 fps | 95.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,288 psi | 87% | 2457 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,869 psi | 88% | 2582 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,506 psi | 87% | 2526 fps | 100% |
| Somchem S365 | <<locked>> | 84% | 55,637 psi | 87% | 2513 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,565 psi | 89% | 2556 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,217 psi | 88% | 2503 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,347 psi | 88% | 2543 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 54,795 psi | 86% | 2579 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 82% | 55,230 psi | 87% | 2513 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,347 psi | 87% | 2546 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,071 psi | 86% | 2641 fps | 100% |
| Vihtavuori N565 | <<locked>> | 94% | 55,129 psi | 86% | 2631 fps | 100% |
| Vihtavuori N568 | <<locked>> | 98% | 56,202 psi | 88% | 2700 fps | 100% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 57,145 psi | 90% | 2762 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,405 psi | 87% | 2461 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 56,275 psi | 88% | 2657 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,463 psi | 88% | 2559 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 39,349 psi | 62% | 2290 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 52,431 psi | 82% | 2480 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 40,756 psi | 64% | 2421 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 80% | 43,845 psi | 69% | 2411 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 39,102 psi | 61% | 2369 fps | 99.1% |
| ADI AR 2217 | <<locked>> | 80% | 28,964 psi | 45% | 2146 fps | 96.3% |
| ADI AR 2218 | <<locked>> | 92% | 36,883 psi | 58% | 2415 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 80% | 26,266 psi | 41% | 2126 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,633 psi | 79% | 2490 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,714 psi | 69% | 2405 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,624 psi | 62% | 2372 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,348 psi | 60% | 2310 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,054 psi | 52% | 2270 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,801 psi | 67% | 2461 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 34,461 psi | 54% | 2356 fps | 95.1% |
| Alliant Reloder-50 | <<locked>> | 94% | 35,839 psi | 56% | 2398 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 38,435 psi | 60% | 2300 fps | 96.3% |
| Bofors RP15 | <<locked>> | 80% | 36,854 psi | 58% | 2320 fps | 99.4% |
| Bofors RP30 | <<locked>> | 80% | 30,371 psi | 48% | 2215 fps | 97.4% |
| Bofors RP5 | <<locked>> | 80% | 39,624 psi | 62% | 2372 fps | 99.8% |
| Bofors RP7 | <<locked>> | 80% | 54,215 psi | 85% | 2484 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 31,459 psi | 49% | 2211 fps | 98% |
| Hodgdon H414 | <<locked>> | 80% | 54,070 psi | 85% | 2539 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,698 psi | 65% | 2365 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,973 psi | 64% | 2352 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,500 psi | 74% | 2375 fps | 100% |
| Hodgdon Retumbo | 106.3 gr | 80% | 32,242 psi | 51% | 2313 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,123 psi | 44% | 1388 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,632 psi | 78% | 2438 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 49,617 psi | 78% | 2431 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,076 psi | 68% | 2356 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 80% | 37,797 psi | 59% | 2352 fps | 98.9% |
| IMR 7977 Enduron | <<locked>> | 90% | 47,326 psi | 74% | 2402 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 84% | 27,166 psi | 43% | 2156 fps | 95.7% |
| Lovex D100 | <<locked>> | 98% | 52,562 psi | 82% | 2539 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 52,982 psi | 83% | 2451 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,445 psi | 81% | 2457 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 33,910 psi | 53% | 2192 fps | 99.9% |
| Norma 204 | <<locked>> | 80% | 50,096 psi | 79% | 2487 fps | 100% |
| Norma 217 | <<locked>> | 80% | 23,714 psi | 37% | 2070 fps | 96.3% |
| Norma MRP | <<locked>> | 80% | 41,742 psi | 65% | 2431 fps | 100% |
| Norma URP | <<locked>> | 80% | 51,242 psi | 80% | 2470 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,478 psi | 59% | 2362 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 80% | 50,067 psi | 78% | 2484 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,359 psi | 52% | 2257 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,848 psi | 45% | 1424 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,620 psi | 82% | 2510 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,068 psi | 80% | 2536 fps | 100% |
| ReloadSwiss RS 76 | 113.8 gr | 80% | 31,125 psi | 49% | 2290 fps | 99.7% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 30,182 psi | 47% | 2251 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 44,802 psi | 70% | 2385 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 80% | 43,178 psi | 68% | 2395 fps | 100% |
| Rottweil R 907 | <<locked>> | 80% | 54,215 psi | 85% | 2484 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 98% | 52,562 psi | 82% | 2539 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,982 psi | 83% | 2451 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,445 psi | 81% | 2457 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 37,449 psi | 59% | 2352 fps | 95% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,866 psi | 81% | 2415 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,844 psi | 67% | 2392 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 45,455 psi | 71% | 2379 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 48,733 psi | 76% | 2428 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,555 psi | 68% | 2372 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 52,634 psi | 82% | 2457 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,913 psi | 59% | 2270 fps | 99.7% |
| Vihtavuori N170 | <<locked>> | 88% | 41,887 psi | 66% | 2375 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 51,764 psi | 81% | 2467 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,757 psi | 67% | 2372 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,684 psi | 65% | 2431 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 80% | 34,200 psi | 54% | 2277 fps | 97.8% |
| Vihtavuori N568 | <<locked>> | 82% | 31,749 psi | 50% | 2267 fps | 95.7% |
| Vihtavuori N570 | 121.4 gr | 88% | 37,275 psi | 58% | 2425 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,793 psi | 81% | 2418 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,578 psi | 56% | 2369 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,929 psi | 63% | 2316 fps | 99.7% |
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 74 powders for .408 Chey Tac loaded with the .408 | 450gr | CutEdge LZR MAX GEN2. Vihtavuori N570 delivers the highest muzzle velocity at 2,762 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,762 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 450.0 gr projectile in 0.408" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N570 rank at the top here: for .408 Chey Tac with the .408 | 450gr | CutEdge LZR MAX GEN2 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.