Load Specifications
Bullet:.338 | 285gr | Hornady BTHP
Bullet Manufacturer:Hornady
Bullet Weight:285 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:1:11.5
Load data in caliber .338 Lapua Mag. with .338 | 285gr | Hornady BTHP bullet and 133 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 Winchester StaBALL HD.
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>> | 90% | 53,026 psi | 87% | 2470 fps | 100% |
| Accurate 3100 | <<locked>> | 90% | 52,750 psi | 87% | 2467 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 54,128 psi | 89% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 53,780 psi | 88% | 2480 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 54,592 psi | 90% | 2608 fps | 99.8% |
| Accurate High Country | <<locked>> | 88% | 54,288 psi | 89% | 2605 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 88% | 51,576 psi | 85% | 2559 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 90% | 54,940 psi | 90% | 2608 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 88% | 54,853 psi | 90% | 2549 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 54,505 psi | 89% | 2543 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 52,663 psi | 86% | 2559 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 90% | 52,330 psi | 86% | 2552 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,288 psi | 89% | 2582 fps | 99.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,824 psi | 88% | 2575 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,602 psi | 80% | 2552 fps | 100% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,312 psi | 79% | 2546 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,998 psi | 90% | 2546 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,708 psi | 90% | 2539 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 51,634 psi | 85% | 2487 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,969 psi | 90% | 2533 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,375 psi | 89% | 2536 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,085 psi | 89% | 2533 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 53,026 psi | 87% | 2556 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 52,692 psi | 87% | 2549 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,476 psi | 89% | 2520 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,143 psi | 89% | 2516 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 53,954 psi | 89% | 2585 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 53,635 psi | 88% | 2579 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,752 psi | 90% | 2602 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,404 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 50,720 psi | 83% | 2605 fps | 97.3% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 50,299 psi | 83% | 2598 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,838 psi | 88% | 2526 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,635 psi | 88% | 2520 fps | 97.7% |
| Bofors RP15 | <<locked>> | 92% | 52,272 psi | 86% | 2543 fps | 99.9% |
| Bofors RP15 | <<locked>> | 92% | 51,938 psi | 85% | 2539 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 53,534 psi | 88% | 2595 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 53,185 psi | 87% | 2589 fps | 99.8% |
| Bofors RP5 | <<locked>> | 90% | 53,026 psi | 87% | 2556 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 52,692 psi | 87% | 2549 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 96% | 52,170 psi | 86% | 2552 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 96% | 51,895 psi | 85% | 2546 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 88% | 52,446 psi | 86% | 2500 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 88% | 52,127 psi | 86% | 2497 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,984 psi | 90% | 2536 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,665 psi | 90% | 2530 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 51,909 psi | 85% | 2421 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,085 psi | 90% | 2461 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 52,794 psi | 87% | 2657 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 52,489 psi | 86% | 2651 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,391 psi | 61% | 1558 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,449 psi | 61% | 1558 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,259 psi | 89% | 2480 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,925 psi | 89% | 2474 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,447 psi | 89% | 2480 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,128 psi | 89% | 2474 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 53,432 psi | 88% | 2487 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 53,171 psi | 87% | 2480 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 92% | 54,505 psi | 89% | 2595 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 92% | 54,172 psi | 89% | 2585 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,280 psi | 73% | 2477 fps | 98.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,019 psi | 72% | 2470 fps | 98.8% |
| Lovex S065 | <<locked>> | 82% | 54,694 psi | 90% | 2457 fps | 100% |
| Lovex S065 | <<locked>> | 82% | 54,360 psi | 89% | 2451 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 53,011 psi | 87% | 2457 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 52,707 psi | 87% | 2454 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,418 psi | 89% | 2487 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,114 psi | 89% | 2484 fps | 100% |
| Norma 204 | <<locked>> | 82% | 51,503 psi | 85% | 2480 fps | 99.8% |
| Norma 204 | <<locked>> | 84% | 54,839 psi | 90% | 2526 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 44,715 psi | 73% | 2500 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 44,237 psi | 73% | 2490 fps | 99.9% |
| Norma MRP | <<locked>> | 88% | 52,866 psi | 87% | 2572 fps | 100% |
| Norma MRP | <<locked>> | 88% | 52,533 psi | 86% | 2566 fps | 100% |
| Norma URP | <<locked>> | 82% | 52,634 psi | 86% | 2474 fps | 100% |
| Norma URP | <<locked>> | 82% | 52,286 psi | 86% | 2467 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 51,314 psi | 84% | 2556 fps | 99.7% |
| Ramshot Grand | <<locked>> | 92% | 54,911 psi | 90% | 2605 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 54,911 psi | 90% | 2526 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 54,607 psi | 90% | 2523 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,432 psi | 88% | 2549 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,084 psi | 87% | 2546 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,319 psi | 63% | 1598 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,363 psi | 63% | 1594 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,012 psi | 89% | 2507 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,896 psi | 88% | 2507 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 52,315 psi | 86% | 2533 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 51,996 psi | 85% | 2526 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 52,982 psi | 87% | 2651 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 52,736 psi | 87% | 2644 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 52,054 psi | 85% | 2615 fps | 99.1% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 51,808 psi | 85% | 2608 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 86% | 52,373 psi | 86% | 2474 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 86% | 52,054 psi | 85% | 2467 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 88% | 54,012 psi | 89% | 2530 fps | 100% |
| Rottweil R 905 | <<locked>> | 88% | 53,708 psi | 88% | 2523 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,694 psi | 90% | 2457 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,360 psi | 89% | 2451 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 53,011 psi | 87% | 2457 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 52,707 psi | 87% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 53,519 psi | 88% | 2415 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 53,359 psi | 88% | 2415 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 53,592 psi | 88% | 2526 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 53,301 psi | 88% | 2520 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 53,563 psi | 88% | 2467 fps | 99.2% |
| Somchem S361 | <<locked>> | 86% | 53,287 psi | 87% | 2464 fps | 99.2% |
| Somchem S365 | <<locked>> | 84% | 53,359 psi | 88% | 2474 fps | 100% |
| Somchem S365 | <<locked>> | 84% | 52,997 psi | 87% | 2470 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,476 psi | 89% | 2507 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,201 psi | 89% | 2500 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 54,172 psi | 89% | 2461 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 53,809 psi | 88% | 2457 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,983 psi | 89% | 2490 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,737 psi | 88% | 2484 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 52,591 psi | 86% | 2503 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 82% | 53,316 psi | 88% | 2470 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 53,026 psi | 87% | 2464 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 53,113 psi | 87% | 2500 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 52,939 psi | 87% | 2497 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 52,620 psi | 86% | 2572 fps | 99.4% |
| Vihtavuori N560 | <<locked>> | 88% | 52,301 psi | 86% | 2566 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 94% | 52,649 psi | 86% | 2559 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 52,373 psi | 86% | 2556 fps | 99.4% |
| Vihtavuori N568 | <<locked>> | 98% | 53,272 psi | 87% | 2618 fps | 98.9% |
| Vihtavuori N568 | <<locked>> | 98% | 52,823 psi | 87% | 2612 fps | 98.8% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,070 psi | 89% | 2671 fps | 97.7% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 53,563 psi | 88% | 2661 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 53,229 psi | 87% | 2421 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 52,939 psi | 87% | 2418 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 52,678 psi | 86% | 2598 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 52,344 psi | 86% | 2595 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,172 psi | 89% | 2503 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 53,853 psi | 88% | 2497 fps | 99.9% |
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% | 38,130 psi | 63% | 2238 fps | 99.6% |
| Accurate 3100 | <<locked>> | 80% | 37,826 psi | 62% | 2231 fps | 99.6% |
| Accurate 4350 | <<locked>> | 80% | 50,662 psi | 83% | 2441 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 50,299 psi | 83% | 2434 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 41,365 psi | 68% | 2392 fps | 97.9% |
| Accurate High Country | <<locked>> | 80% | 41,205 psi | 68% | 2388 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 80% | 38,972 psi | 64% | 2339 fps | 96% |
| Accurate MAGPRO | <<locked>> | 80% | 38,841 psi | 64% | 2336 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 42,090 psi | 69% | 2349 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 80% | 41,800 psi | 69% | 2343 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 80% | 37,637 psi | 62% | 2293 fps | 96.7% |
| ADI AR 2213 | <<locked>> | 80% | 37,362 psi | 61% | 2287 fps | 96.5% |
| ADI AR 2217 | <<locked>> | 86% | 34,026 psi | 56% | 2218 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 86% | 33,953 psi | 56% | 2215 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 82% | 27,224 psi | 45% | 2090 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 82% | 27,035 psi | 44% | 2083 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,511 psi | 70% | 2349 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,235 psi | 69% | 2343 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,486 psi | 80% | 2444 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,269 psi | 79% | 2441 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,148 psi | 69% | 2343 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,843 psi | 69% | 2336 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,043 psi | 62% | 2303 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,753 psi | 62% | 2297 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,767 psi | 60% | 2257 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,579 psi | 60% | 2254 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,792 psi | 52% | 2198 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,546 psi | 52% | 2192 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,698 psi | 67% | 2395 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,364 psi | 66% | 2388 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 43,845 psi | 72% | 2487 fps | 95.4% |
| Alliant Reloder-33 | <<locked>> | 96% | 43,482 psi | 71% | 2480 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 44,831 psi | 74% | 2375 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 44,599 psi | 73% | 2369 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 35,404 psi | 58% | 2247 fps | 97.2% |
| Bofors RP15 | <<locked>> | 80% | 35,273 psi | 58% | 2244 fps | 97.1% |
| Bofors RP30 | <<locked>> | 84% | 33,460 psi | 55% | 2234 fps | 95.9% |
| Bofors RP30 | <<locked>> | 84% | 33,214 psi | 55% | 2231 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 38,043 psi | 62% | 2303 fps | 98.1% |
| Bofors RP5 | <<locked>> | 80% | 37,753 psi | 62% | 2297 fps | 98% |
| Hodgdon H1000 | <<locked>> | 82% | 32,460 psi | 53% | 2182 fps | 95.6% |
| Hodgdon H1000 | <<locked>> | 82% | 32,372 psi | 53% | 2178 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 80% | 40,030 psi | 66% | 2293 fps | 96.7% |
| Hodgdon H4831 | <<locked>> | 80% | 39,885 psi | 65% | 2290 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,436 psi | 65% | 2283 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,175 psi | 64% | 2277 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,658 psi | 75% | 2336 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,469 psi | 75% | 2333 fps | 100% |
| Hodgdon Retumbo | 72.3 gr | 80% | 31,067 psi | 51% | 2221 fps | 96.3% |
| Hodgdon Retumbo | 72.3 gr | 80% | 30,835 psi | 51% | 2215 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,181 psi | 46% | 1394 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,036 psi | 46% | 1388 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,892 psi | 79% | 2388 fps | 99.9% |
| IMR 4350 | <<locked>> | 80% | 47,558 psi | 78% | 2379 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 47,906 psi | 79% | 2392 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,747 psi | 78% | 2388 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,626 psi | 68% | 2290 fps | 97.3% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,350 psi | 68% | 2287 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 80% | 36,303 psi | 60% | 2277 fps | 96.3% |
| IMR 7828 SSC | <<locked>> | 80% | 36,042 psi | 59% | 2270 fps | 96.2% |
| IMR 8133 Enduron | <<locked>> | 92% | 33,997 psi | 56% | 2270 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 92% | 33,750 psi | 55% | 2264 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 51,416 psi | 84% | 2411 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 51,242 psi | 84% | 2408 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,835 psi | 82% | 2411 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,661 psi | 82% | 2408 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,880 psi | 54% | 2133 fps | 98.7% |
| Lovex S071 | <<locked>> | 80% | 32,706 psi | 54% | 2126 fps | 98.6% |
| Norma 204 | <<locked>> | 80% | 48,109 psi | 79% | 2428 fps | 99.5% |
| Norma 204 | <<locked>> | 80% | 47,979 psi | 79% | 2425 fps | 99.5% |
| Norma 217 | <<locked>> | 86% | 27,992 psi | 46% | 2136 fps | 95.4% |
| Norma 217 | <<locked>> | 86% | 27,876 psi | 46% | 2133 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 39,900 psi | 66% | 2362 fps | 99.4% |
| Norma MRP | <<locked>> | 80% | 39,769 psi | 65% | 2359 fps | 99.4% |
| Norma URP | <<locked>> | 80% | 49,356 psi | 81% | 2428 fps | 100% |
| Norma URP | <<locked>> | 80% | 49,182 psi | 81% | 2421 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,897 psi | 59% | 2283 fps | 96.6% |
| Ramshot Grand | <<locked>> | 80% | 35,621 psi | 58% | 2277 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 80% | 48,066 psi | 79% | 2431 fps | 100% |
| Ramshot Hunter | <<locked>> | 80% | 47,921 psi | 79% | 2428 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,039 psi | 53% | 2178 fps | 97% |
| Ramshot Magnum | <<locked>> | 80% | 31,807 psi | 52% | 2172 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,776 psi | 47% | 1424 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,776 psi | 47% | 1424 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,473 psi | 83% | 2461 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,343 psi | 83% | 2457 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,747 psi | 80% | 2484 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,428 psi | 80% | 2477 fps | 100% |
| ReloadSwiss RS 76 | 77.4 gr | 80% | 29,979 psi | 49% | 2198 fps | 97% |
| ReloadSwiss RS 76 | 77.4 gr | 80% | 29,791 psi | 49% | 2188 fps | 96.9% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 35,911 psi | 59% | 2323 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 38,421 psi | 63% | 2379 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 43,178 psi | 71% | 2323 fps | 98.2% |
| Rottweil R 904 | <<locked>> | 80% | 43,062 psi | 71% | 2320 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 80% | 41,539 psi | 68% | 2333 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 80% | 41,379 psi | 68% | 2329 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,416 psi | 84% | 2411 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,242 psi | 84% | 2408 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,835 psi | 82% | 2411 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,661 psi | 82% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,212 psi | 82% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,067 psi | 82% | 2365 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,205 psi | 68% | 2329 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,046 psi | 67% | 2323 fps | 98.7% |
| Somchem S361 | <<locked>> | 80% | 43,961 psi | 72% | 2316 fps | 97.7% |
| Somchem S361 | <<locked>> | 80% | 43,714 psi | 72% | 2313 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 46,731 psi | 77% | 2385 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 46,340 psi | 76% | 2379 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,119 psi | 69% | 2316 fps | 99.4% |
| Somchem S385 | <<locked>> | 80% | 41,800 psi | 69% | 2310 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 50,792 psi | 83% | 2418 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 50,444 psi | 83% | 2411 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,608 psi | 60% | 2208 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 80% | 36,347 psi | 60% | 2201 fps | 98% |
| Vihtavuori N170 | <<locked>> | 94% | 49,168 psi | 81% | 2451 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 49,922 psi | 82% | 2421 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 49,792 psi | 82% | 2418 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,162 psi | 68% | 2323 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,872 psi | 67% | 2316 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,885 psi | 65% | 2352 fps | 96.9% |
| Vihtavuori N560 | <<locked>> | 80% | 39,769 psi | 65% | 2352 fps | 96.9% |
| Vihtavuori N565 | <<locked>> | 82% | 35,244 psi | 58% | 2251 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 82% | 34,998 psi | 57% | 2244 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 88% | 37,507 psi | 62% | 2343 fps | 95% |
| Vihtavuori N568 | <<locked>> | 90% | 39,943 psi | 66% | 2392 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 94% | 43,714 psi | 72% | 2493 fps | 95% |
| Vihtavuori N570 | <<locked>> | 96% | 46,644 psi | 77% | 2546 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,821 psi | 82% | 2379 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,516 psi | 81% | 2375 fps | 100% |
| Winchester StaBALL HD | 74.3 gr | 80% | 33,373 psi | 55% | 2297 fps | 100% |
| Winchester StaBALL HD | 74.3 gr | 80% | 33,185 psi | 54% | 2293 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,450 psi | 63% | 2251 fps | 98% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,319 psi | 63% | 2247 fps | 98% |
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 133 powders for .338 Lapua Mag. loaded with the .338 | 285gr | Hornady BTHP. Vihtavuori N570 delivers the highest muzzle velocity at 2,671 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,671 fps. ADI AR 2217 gives the best case fill at 100 %, and 133 of the 133 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 285.0 gr projectile in 0.338" calls for a 1:11.5 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. Hodgdon Retumbo, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for .338 Lapua Mag. with the .338 | 285gr | Hornady BTHP 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.