Load Specifications
Bullet:.338 | 275gr | CutEdge MTH
Bullet Manufacturer:Cutting Edge
Bullet Weight:275 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338 Lapua Mag. load data
Case Length (l3):2.724"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:114 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:60,916 psi
Recommended Twist Rate:1:10.0
Load data in caliber .338 Lapua Mag. with .338 | 275gr | CutEdge MTH bullet and 144 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Accurate MAGPRO and Ramshot Grand.
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 3100 | <<locked>> | 94% | 53,954 psi | 89% | 2520 fps | 100% |
| Accurate 3100 | <<locked>> | 94% | 54,476 psi | 89% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 51,837 psi | 85% | 2497 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,475 psi | 86% | 2507 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 52,605 psi | 86% | 2621 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 92% | 52,533 psi | 86% | 2612 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 92% | 53,243 psi | 87% | 2621 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 90% | 52,837 psi | 87% | 2556 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 53,403 psi | 88% | 2566 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 94% | 54,230 psi | 89% | 2615 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 54,752 psi | 90% | 2625 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,341 psi | 79% | 2523 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,936 psi | 80% | 2536 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,888 psi | 70% | 2490 fps | 99.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,439 psi | 71% | 2500 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,766 psi | 88% | 2566 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,214 psi | 87% | 2549 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,679 psi | 88% | 2559 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,954 psi | 89% | 2559 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,621 psi | 90% | 2569 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,373 psi | 86% | 2543 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,084 psi | 87% | 2559 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,128 psi | 89% | 2608 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,665 psi | 90% | 2618 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 51,677 psi | 85% | 2530 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,460 psi | 86% | 2539 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,505 psi | 89% | 2635 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,677 psi | 85% | 2598 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 51,401 psi | 84% | 2605 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,185 psi | 86% | 2618 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,663 psi | 86% | 2530 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,142 psi | 87% | 2543 fps | 97% |
| Bofors RP15 | <<locked>> | 96% | 53,113 psi | 87% | 2592 fps | 99.8% |
| Bofors RP15 | <<locked>> | 96% | 53,853 psi | 88% | 2605 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,241 psi | 82% | 2585 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,140 psi | 84% | 2602 fps | 99.4% |
| Bofors RP5 | <<locked>> | 94% | 54,128 psi | 89% | 2608 fps | 99.9% |
| Bofors RP5 | <<locked>> | 94% | 54,665 psi | 90% | 2618 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 54,636 psi | 90% | 2500 fps | 100% |
| Bofors RP7 | <<locked>> | 84% | 55,013 psi | 90% | 2510 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,432 psi | 88% | 2602 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,085 psi | 89% | 2615 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 53,824 psi | 88% | 2549 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 54,389 psi | 89% | 2559 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 52,953 psi | 87% | 2510 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 82% | 53,519 psi | 88% | 2523 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 54,027 psi | 89% | 2556 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 92% | 54,752 psi | 90% | 2569 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,997 psi | 87% | 2539 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,679 psi | 88% | 2552 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,417 psi | 88% | 2480 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,824 psi | 88% | 2487 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,330 psi | 88% | 2703 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,056 psi | 89% | 2717 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,853 psi | 88% | 2582 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,607 psi | 90% | 2595 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 61% | 1565 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,130 psi | 61% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,750 psi | 87% | 2490 fps | 99.9% |
| IMR 4350 | <<locked>> | 86% | 53,287 psi | 87% | 2503 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,707 psi | 87% | 2474 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,258 psi | 87% | 2484 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 52,359 psi | 86% | 2490 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 52,982 psi | 87% | 2503 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 51,866 psi | 85% | 2493 fps | 98.7% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,330 psi | 86% | 2500 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 94% | 51,967 psi | 85% | 2589 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 94% | 52,678 psi | 86% | 2605 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 38,421 psi | 63% | 2402 fps | 96.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,001 psi | 64% | 2415 fps | 97% |
| Lovex S065 | <<locked>> | 84% | 53,113 psi | 87% | 2470 fps | 100% |
| Lovex S065 | <<locked>> | 84% | 53,708 psi | 88% | 2480 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,679 psi | 90% | 2516 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 51,938 psi | 85% | 2480 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,027 psi | 90% | 2533 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 52,185 psi | 86% | 2500 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,388 psi | 88% | 2539 fps | 99.7% |
| Norma 204 | <<locked>> | 86% | 53,954 psi | 89% | 2552 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 38,334 psi | 63% | 2421 fps | 98.8% |
| Norma 217ᴾ | <<locked>> | 100% | 38,928 psi | 64% | 2434 fps | 98.9% |
| Norma MRP | <<locked>> | 92% | 53,780 psi | 88% | 2625 fps | 100% |
| Norma MRP | <<locked>> | 92% | 54,563 psi | 90% | 2638 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,128 psi | 89% | 2530 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,737 psi | 90% | 2543 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,475 psi | 86% | 2608 fps | 99.5% |
| Ramshot Grand | <<locked>> | 94% | 53,229 psi | 87% | 2625 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 52,939 psi | 87% | 2539 fps | 100% |
| Ramshot Hunter | <<locked>> | 86% | 53,476 psi | 88% | 2549 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,563 psi | 90% | 2602 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 51,256 psi | 84% | 2559 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,811 psi | 62% | 1601 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,840 psi | 62% | 1604 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 51,793 psi | 85% | 2520 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,388 psi | 86% | 2530 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,896 psi | 88% | 2595 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,723 psi | 90% | 2608 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,882 psi | 88% | 2700 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,737 psi | 90% | 2713 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,515 psi | 80% | 2598 fps | 98.1% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,327 psi | 81% | 2612 fps | 98.3% |
| Rottweil R 904 | <<locked>> | 90% | 54,041 psi | 89% | 2526 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 90% | 54,781 psi | 90% | 2539 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 90% | 51,953 psi | 85% | 2536 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 90% | 52,504 psi | 86% | 2546 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 54,636 psi | 90% | 2500 fps | 100% |
| Rottweil R 907 | <<locked>> | 84% | 55,013 psi | 90% | 2510 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,113 psi | 87% | 2470 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,708 psi | 88% | 2480 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,679 psi | 90% | 2516 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 51,938 psi | 85% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,199 psi | 86% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,736 psi | 87% | 2441 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,056 psi | 90% | 2582 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,098 psi | 86% | 2543 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 51,996 psi | 85% | 2474 fps | 98.5% |
| Somchem S361 | <<locked>> | 88% | 52,431 psi | 86% | 2484 fps | 98.6% |
| Somchem S365 | <<locked>> | 88% | 54,404 psi | 89% | 2530 fps | 100% |
| Somchem S365 | <<locked>> | 88% | 55,071 psi | 90% | 2543 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,301 psi | 86% | 2510 fps | 99.9% |
| Somchem S385 | <<locked>> | 90% | 52,823 psi | 87% | 2520 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 53,185 psi | 87% | 2418 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 53,606 psi | 88% | 2428 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,460 psi | 86% | 2477 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,040 psi | 87% | 2487 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 51,880 psi | 85% | 2497 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 94% | 52,359 psi | 86% | 2503 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 54,969 psi | 90% | 2530 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 51,982 psi | 85% | 2493 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,780 psi | 88% | 2552 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,404 psi | 89% | 2559 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,722 psi | 88% | 2625 fps | 99.1% |
| Vihtavuori N560 | <<locked>> | 92% | 54,462 psi | 89% | 2638 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 98% | 53,243 psi | 87% | 2605 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 98% | 53,896 psi | 88% | 2615 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,835 psi | 82% | 2602 fps | 97.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,662 psi | 83% | 2618 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 51,721 psi | 85% | 2441 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,228 psi | 86% | 2451 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,824 psi | 88% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,389 psi | 89% | 2559 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,678 psi | 86% | 2651 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,563 psi | 88% | 2661 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,141 psi | 86% | 2507 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,605 psi | 86% | 2516 fps | 99.7% |
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 3100 | <<locked>> | 80% | 33,301 psi | 55% | 2178 fps | 98.3% |
| Accurate 3100 | <<locked>> | 80% | 33,823 psi | 56% | 2192 fps | 98.5% |
| Accurate 4350 | <<locked>> | 80% | 45,063 psi | 74% | 2398 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 45,701 psi | 75% | 2411 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 36,840 psi | 60% | 2339 fps | 96% |
| Accurate MAGPRO | 77.6 gr | 84% | 39,494 psi | 65% | 2385 fps | 95.4% |
| Accurate MAGPRO | 77.6 gr | 84% | 40,161 psi | 66% | 2398 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 37,840 psi | 62% | 2300 fps | 97.2% |
| ADI AR 2209 | <<locked>> | 80% | 38,203 psi | 63% | 2310 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 82% | 35,926 psi | 59% | 2287 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 82% | 36,390 psi | 60% | 2300 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 92% | 36,956 psi | 61% | 2310 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 90% | 34,983 psi | 57% | 2267 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 28,950 psi | 48% | 2165 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 88% | 29,283 psi | 48% | 2182 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,609 psi | 63% | 2310 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,613 psi | 72% | 2408 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,121 psi | 72% | 2418 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,256 psi | 83% | 2510 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,894 psi | 84% | 2520 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,710 psi | 62% | 2293 fps | 97.2% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,261 psi | 63% | 2306 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,518 psi | 55% | 2244 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,881 psi | 56% | 2251 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,300 psi | 53% | 2208 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,692 psi | 54% | 2218 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,036 psi | 46% | 2133 fps | 97.1% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,340 psi | 47% | 2142 fps | 97.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,114 psi | 58% | 2333 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,665 psi | 59% | 2346 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 46,398 psi | 76% | 2428 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 46,862 psi | 77% | 2438 fps | 95.4% |
| Bofors RP15 | <<locked>> | 82% | 33,359 psi | 55% | 2238 fps | 95.7% |
| Bofors RP15 | <<locked>> | 82% | 33,736 psi | 55% | 2247 fps | 95.9% |
| Bofors RP30 | <<locked>> | 90% | 35,592 psi | 58% | 2320 fps | 95.9% |
| Bofors RP30 | <<locked>> | 88% | 33,721 psi | 55% | 2280 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 33,518 psi | 55% | 2244 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 33,881 psi | 56% | 2251 fps | 96.1% |
| Bofors RP7 | <<locked>> | 80% | 48,109 psi | 79% | 2405 fps | 99.7% |
| Bofors RP7 | <<locked>> | 80% | 48,486 psi | 80% | 2415 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 88% | 35,375 psi | 58% | 2277 fps | 95.9% |
| Hodgdon H1000 | <<locked>> | 86% | 33,373 psi | 55% | 2234 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 46,920 psi | 77% | 2448 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 47,514 psi | 78% | 2461 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 49,690 psi | 82% | 2461 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,067 psi | 82% | 2470 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 82% | 38,435 psi | 63% | 2293 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 82% | 38,914 psi | 64% | 2306 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 82% | 37,695 psi | 62% | 2280 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 82% | 38,203 psi | 63% | 2293 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,959 psi | 67% | 2303 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,423 psi | 68% | 2313 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 31,227 psi | 51% | 2254 fps | 95.3% |
| Hodgdon Retumbo | <<locked>> | 84% | 31,647 psi | 52% | 2270 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 46,441 psi | 76% | 2474 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 80% | 46,992 psi | 77% | 2487 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,760 psi | 46% | 1398 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 46% | 1398 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,627 psi | 72% | 2349 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 43,990 psi | 72% | 2359 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,487 psi | 81% | 2428 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,053 psi | 82% | 2438 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 43,033 psi | 71% | 2356 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 43,453 psi | 71% | 2362 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 37,782 psi | 62% | 2247 fps | 95.4% |
| IMR 4955 Enduron | <<locked>> | 80% | 38,130 psi | 63% | 2257 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 84% | 36,999 psi | 61% | 2323 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 84% | 37,449 psi | 61% | 2336 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 35,940 psi | 59% | 2349 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 96% | 34,156 psi | 56% | 2310 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 47,021 psi | 77% | 2382 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 47,413 psi | 78% | 2392 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,208 psi | 74% | 2375 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,629 psi | 75% | 2385 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 28,645 psi | 47% | 2070 fps | 96.7% |
| Lovex S071 | <<locked>> | 80% | 29,022 psi | 48% | 2083 fps | 96.9% |
| Norma 204 | <<locked>> | 80% | 43,526 psi | 71% | 2385 fps | 98.4% |
| Norma 204 | <<locked>> | 80% | 43,918 psi | 72% | 2395 fps | 98.5% |
| Norma 217 | <<locked>> | 92% | 29,385 psi | 48% | 2208 fps | 95.3% |
| Norma 217 | <<locked>> | 92% | 29,791 psi | 49% | 2221 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 34,954 psi | 57% | 2300 fps | 97.9% |
| Norma MRP | <<locked>> | 80% | 35,476 psi | 58% | 2313 fps | 98.1% |
| Norma URP | <<locked>> | 80% | 44,483 psi | 73% | 2392 fps | 100% |
| Norma URP | <<locked>> | 80% | 44,904 psi | 74% | 2402 fps | 100% |
| Ramshot Grand | 75.5 gr | 84% | 36,492 psi | 60% | 2326 fps | 96% |
| Ramshot Grand | 73.7 gr | 82% | 34,403 psi | 56% | 2280 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 43,308 psi | 71% | 2392 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 80% | 43,700 psi | 72% | 2402 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 82% | 30,095 psi | 49% | 2162 fps | 95.3% |
| Ramshot Magnum | <<locked>> | 82% | 30,501 psi | 50% | 2175 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 46% | 1430 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,413 psi | 47% | 1434 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,078 psi | 74% | 2421 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,687 psi | 75% | 2434 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,395 psi | 71% | 2438 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,961 psi | 72% | 2451 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,139 psi | 49% | 2228 fps | 96.1% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 28,369 psi | 47% | 2178 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 38,638 psi | 63% | 2418 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 39,349 psi | 65% | 2431 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 39,204 psi | 64% | 2280 fps | 96.5% |
| Rottweil R 904 | <<locked>> | 80% | 39,581 psi | 65% | 2290 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 80% | 36,999 psi | 61% | 2280 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 80% | 37,536 psi | 62% | 2293 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 80% | 48,109 psi | 79% | 2405 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 80% | 48,486 psi | 80% | 2415 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,021 psi | 77% | 2382 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,413 psi | 78% | 2392 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,208 psi | 74% | 2375 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,629 psi | 75% | 2385 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,919 psi | 75% | 2336 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,267 psi | 76% | 2346 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,666 psi | 60% | 2274 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,231 psi | 61% | 2290 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 39,653 psi | 65% | 2270 fps | 95.8% |
| Somchem S361 | <<locked>> | 80% | 40,118 psi | 66% | 2280 fps | 96% |
| Somchem S365 | <<locked>> | 80% | 41,452 psi | 68% | 2349 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 41,916 psi | 69% | 2359 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,521 psi | 62% | 2264 fps | 98% |
| Somchem S385 | <<locked>> | 80% | 37,898 psi | 62% | 2274 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 80% | 49,879 psi | 82% | 2375 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 50,285 psi | 83% | 2385 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,847 psi | 75% | 2382 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,456 psi | 76% | 2395 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,387 psi | 53% | 2152 fps | 96% |
| Vihtavuori N165 | <<locked>> | 80% | 32,851 psi | 54% | 2165 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,121 psi | 74% | 2388 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 45,701 psi | 75% | 2398 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,143 psi | 59% | 2274 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,564 psi | 60% | 2283 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 37,826 psi | 62% | 2349 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 82% | 38,305 psi | 63% | 2359 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 88% | 37,782 psi | 62% | 2339 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 86% | 35,650 psi | 59% | 2297 fps | 95% |
| Vihtavuori N568 | <<locked>> | 94% | 40,248 psi | 66% | 2431 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 94% | 40,828 psi | 67% | 2448 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,991 psi | 74% | 2352 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,513 psi | 75% | 2362 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,108 psi | 77% | 2451 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 47,703 psi | 78% | 2464 fps | 99.9% |
| Winchester StaBALL HD | 71.7 gr | 80% | 28,471 psi | 47% | 2228 fps | 100% |
| Winchester StaBALL HD | 71.7 gr | 80% | 28,790 psi | 47% | 2238 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,200 psi | 56% | 2198 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,664 psi | 57% | 2208 fps | 96.3% |
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 144 powders for .338 Lapua Mag. loaded with the .338 | 275gr | CutEdge MTH. Hodgdon Retumbo delivers the highest muzzle velocity at 2,717 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,717 fps. ADI AR 2217 gives the best case fill at 100 %, and 144 of the 144 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 275.0 gr projectile in 0.338" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2217, 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. Winchester StaBALL HD, Accurate MAGPRO, Ramshot Grand rank at the top here: for .338 Lapua Mag. with the .338 | 275gr | CutEdge MTH 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.