Load Specifications
Bullet Manufacturer:Reichenberg
Bullet Weight:154 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Case Length (l3):2.724"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:124.89 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:27"
Max. allowed Pressure:69,618 psi
Load data in caliber .338 Lapua Mag. Ackley Improved with .338 | 154gr | Reichenberg Spezial Jagd bullet and 116 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.
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: 27"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 59,654 psi | 86% | 3340 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 59,799 psi | 86% | 3366 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 61,670 psi | 89% | 3448 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 62,366 psi | 90% | 3451 fps | 99% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,199 psi | 75% | 3350 fps | 99.1% |
| Accurate 4064 | <<locked>> | 88% | 60,249 psi | 87% | 3428 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 62,308 psi | 90% | 3550 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 57,682 psi | 83% | 3583 fps | 97.3% |
| ADI APS 450 | <<locked>> | 84% | 62,221 psi | 89% | 2753 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 59,379 psi | 85% | 3471 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 60,843 psi | 87% | 3474 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 59,625 psi | 86% | 3537 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 61,786 psi | 89% | 3465 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 59,959 psi | 86% | 3376 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 61,235 psi | 88% | 3625 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 59,683 psi | 86% | 3530 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 61,786 psi | 89% | 3497 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 62,091 psi | 89% | 3527 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 62,816 psi | 90% | 3615 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 61,046 psi | 88% | 3589 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 58,784 psi | 84% | 3517 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,301 psi | 75% | 3445 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,095 psi | 71% | 3379 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,699 psi | 61% | 3271 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,363 psi | 82% | 3602 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 60,191 psi | 86% | 3491 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,616 psi | 68% | 3350 fps | 96% |
| Bofors RP3 | <<locked>> | 88% | 58,871 psi | 85% | 3455 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,301 psi | 75% | 3445 fps | 97.3% |
| Bofors RP7 | <<locked>> | 94% | 62,323 psi | 90% | 3497 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 59,205 psi | 85% | 3386 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 62,598 psi | 90% | 3501 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 59,654 psi | 86% | 3481 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 60,684 psi | 87% | 3550 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 92% | 60,162 psi | 86% | 3504 fps | 98.5% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,624 psi | 83% | 3461 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 84% | 60,104 psi | 86% | 3481 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 59,321 psi | 85% | 3461 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 61,148 psi | 88% | 3520 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 62,395 psi | 90% | 3599 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,897 psi | 52% | 2195 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 61,554 psi | 88% | 3484 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 60,756 psi | 87% | 3455 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 60,307 psi | 87% | 3458 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 59,640 psi | 86% | 3438 fps | 99.2% |
| IMR 4350 | <<locked>> | 96% | 59,683 psi | 86% | 3468 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 92% | 60,220 psi | 87% | 3468 fps | 99.3% |
| IMR 4831 | <<locked>> | 98% | 62,613 psi | 90% | 3533 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 59,741 psi | 86% | 3504 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 58,914 psi | 85% | 3448 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 84% | 61,786 psi | 89% | 3465 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 60,220 psi | 87% | 3435 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 61,873 psi | 89% | 3442 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 60,321 psi | 87% | 3445 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 60,046 psi | 86% | 3458 fps | 99.8% |
| Lovex S070 | <<locked>> | 96% | 61,699 psi | 89% | 3504 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,859 psi | 62% | 3166 fps | 97.4% |
| Norma 201 | <<locked>> | 86% | 61,743 psi | 89% | 3461 fps | 100% |
| Norma 202 | <<locked>> | 86% | 62,714 psi | 90% | 3458 fps | 100% |
| Norma 203B | <<locked>> | 88% | 61,279 psi | 88% | 3507 fps | 100% |
| Norma 204 | <<locked>> | 96% | 61,235 psi | 88% | 3533 fps | 98.3% |
| Norma MRPᴾ | <<locked>> | 100% | 55,709 psi | 80% | 3543 fps | 99% |
| Norma URP | <<locked>> | 96% | 60,582 psi | 87% | 3530 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 62,990 psi | 90% | 3537 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 59,756 psi | 86% | 3530 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,585 psi | 65% | 3274 fps | 96.3% |
| Ramshot TAC | <<locked>> | 84% | 62,729 psi | 90% | 3501 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 84% | 62,888 psi | 90% | 3517 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 62,758 psi | 90% | 3468 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,463 psi | 52% | 2244 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 59,654 psi | 86% | 3458 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 59,553 psi | 86% | 3550 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 60,249 psi | 87% | 3579 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 62,613 psi | 90% | 3576 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 61,424 psi | 88% | 3615 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 61,989 psi | 89% | 3432 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 62,236 psi | 89% | 3455 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 62,961 psi | 90% | 3507 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 61,380 psi | 88% | 3501 fps | 97.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,943 psi | 83% | 3501 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 94% | 62,323 psi | 90% | 3497 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 60,046 psi | 86% | 3458 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 60,220 psi | 87% | 3435 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 60,321 psi | 87% | 3445 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 61,699 psi | 89% | 3504 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 61,250 psi | 88% | 3520 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 61,583 psi | 88% | 3478 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 62,134 psi | 89% | 3497 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 62,671 psi | 90% | 3379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 60,017 psi | 86% | 3320 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 60,321 psi | 87% | 3406 fps | 99.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,435 psi | 83% | 3494 fps | 98.1% |
| Somchem S335 | <<locked>> | 86% | 62,207 psi | 89% | 3369 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 61,279 psi | 88% | 3458 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 62,613 psi | 90% | 3501 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 59,930 psi | 86% | 3422 fps | 96.5% |
| Somchem S365 | <<locked>> | 98% | 60,089 psi | 86% | 3527 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 58,740 psi | 84% | 3471 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 82% | 61,801 psi | 89% | 3330 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 59,321 psi | 85% | 3304 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 62,729 psi | 90% | 3406 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 59,582 psi | 86% | 3373 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 60,582 psi | 87% | 3412 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 59,059 psi | 85% | 3465 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,560 psi | 73% | 3307 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 84% | 62,656 psi | 90% | 3465 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 61,815 psi | 89% | 3422 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 62,308 psi | 90% | 3533 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,839 psi | 79% | 3465 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,043 psi | 81% | 3527 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 59,451 psi | 85% | 3422 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 59,582 psi | 86% | 3461 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 60,901 psi | 87% | 3553 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,440 psi | 64% | 3428 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 62,671 psi | 90% | 3504 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,230 psi | 79% | 3396 fps | 97.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 27"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 56,043 psi | 81% | 3287 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 48,747 psi | 70% | 3202 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 57,406 psi | 82% | 3389 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,442 psi | 68% | 3189 fps | 96.5% |
| Accurate 3100 | <<locked>> | 90% | 36,318 psi | 52% | 3015 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 46,166 psi | 66% | 3202 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,940 psi | 50% | 3012 fps | 96.5% |
| Accurate High Country | <<locked>> | 96% | 49,835 psi | 72% | 3435 fps | 95.5% |
| ADI APS 450 | <<locked>> | 80% | 58,218 psi | 84% | 2690 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 52,228 psi | 75% | 3353 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,280 psi | 64% | 3176 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 92% | 45,353 psi | 65% | 3261 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,404 psi | 78% | 3353 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 55,941 psi | 80% | 3320 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,907 psi | 70% | 3415 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,498 psi | 65% | 3261 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,512 psi | 64% | 3202 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,688 psi | 69% | 3281 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,519 psi | 50% | 3035 fps | 96.6% |
| Alliant Reloder-17 | 89.5 gr | 80% | 39,276 psi | 56% | 3186 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,947 psi | 65% | 3251 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 45,440 psi | 65% | 3307 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,500 psi | 41% | 2854 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,983 psi | 50% | 3061 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,359 psi | 48% | 3064 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,359 psi | 75% | 3360 fps | 99.8% |
| Bofors RP15 | <<locked>> | 98% | 44,483 psi | 64% | 3281 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 44,643 psi | 64% | 3205 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 45,440 psi | 65% | 3307 fps | 95.5% |
| Bofors RP7 | <<locked>> | 82% | 42,105 psi | 60% | 3114 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 55,579 psi | 80% | 3330 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,346 psi | 78% | 3376 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,194 psi | 65% | 3215 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 40,001 psi | 57% | 3143 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 84% | 46,108 psi | 66% | 3238 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 98% | 53,621 psi | 77% | 3389 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 52,794 psi | 76% | 3363 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,850 psi | 46% | 2910 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,588 psi | 71% | 3337 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 42,482 psi | 61% | 3225 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,672 psi | 38% | 1969 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,517 psi | 73% | 3304 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,185 psi | 76% | 3343 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,543 psi | 67% | 3219 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,936 psi | 70% | 3245 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 43,062 psi | 62% | 3153 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,046 psi | 59% | 3094 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 33,707 psi | 48% | 2963 fps | 96.1% |
| IMR 4895 | <<locked>> | 80% | 48,936 psi | 70% | 3317 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,230 psi | 79% | 3386 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 54,404 psi | 78% | 3353 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,402 psi | 75% | 3317 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,314 psi | 74% | 3271 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,615 psi | 67% | 3215 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,247 psi | 55% | 3028 fps | 96.1% |
| Lovex S070 | <<locked>> | 82% | 39,088 psi | 56% | 3064 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 37,449 psi | 54% | 3041 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 50,792 psi | 73% | 3287 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,576 psi | 74% | 3287 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,065 psi | 68% | 3268 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 46,108 psi | 66% | 3255 fps | 95.2% |
| Norma MRP | <<locked>> | 92% | 41,539 psi | 60% | 3251 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 35,085 psi | 50% | 3018 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 47,456 psi | 68% | 3281 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 36,651 psi | 53% | 3061 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 98% | 42,293 psi | 61% | 3199 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 54,737 psi | 79% | 3373 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,723 psi | 79% | 3389 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 58,639 psi | 84% | 3406 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,122 psi | 39% | 2018 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,411 psi | 65% | 3196 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,619 psi | 74% | 3415 fps | 99.9% |
| ReloadSwiss RS 60 | 89.5 gr | 80% | 41,843 psi | 60% | 3258 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,954 psi | 50% | 3031 fps | 96.1% |
| ReloadSwiss RS 70 | 90.8 gr | 80% | 34,214 psi | 49% | 3031 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 54,694 psi | 79% | 3323 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 48,298 psi | 69% | 3232 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,945 psi | 60% | 3143 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 94% | 50,270 psi | 72% | 3304 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 94% | 46,920 psi | 67% | 3297 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 82% | 42,105 psi | 60% | 3114 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,247 psi | 55% | 3028 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,402 psi | 75% | 3317 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,615 psi | 67% | 3215 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 39,088 psi | 56% | 3064 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,424 psi | 62% | 3205 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,345 psi | 77% | 3346 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,894 psi | 73% | 3314 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,692 psi | 74% | 3219 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,526 psi | 63% | 3061 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 40,205 psi | 58% | 3025 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 46,485 psi | 67% | 3287 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 51,503 psi | 74% | 3212 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,229 psi | 76% | 3333 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,322 psi | 61% | 3146 fps | 99.5% |
| Somchem S361 | <<locked>> | 96% | 55,825 psi | 80% | 3356 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 31,430 psi | 45% | 2959 fps | 98.4% |
| Somchem S385 | <<locked>> | 90% | 41,582 psi | 60% | 3140 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 57,957 psi | 83% | 3278 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 52,257 psi | 75% | 3202 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,370 psi | 69% | 3196 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,994 psi | 70% | 3212 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,553 psi | 58% | 3068 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 36,492 psi | 52% | 3018 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 96% | 43,932 psi | 63% | 3173 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 54,781 psi | 79% | 3350 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,311 psi | 68% | 3196 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,969 psi | 52% | 3015 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 84% | 31,343 psi | 45% | 2946 fps | 95.7% |
| Vihtavuori N560 | <<locked>> | 98% | 52,214 psi | 75% | 3455 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,056 psi | 52% | 2986 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 55,608 psi | 80% | 3406 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 40,147 psi | 58% | 3146 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,021 psi | 39% | 2881 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,850 psi | 73% | 3317 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 47,776 psi | 69% | 3261 fps | 95.9% |
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 116 powders for .338 Lapua Mag. Ackley Improved loaded with the .338 | 154gr | Reichenberg Spezial Jagd. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,625 fps; across all powders the maximum-charge window runs from 2,195 fps to 3,625 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (480 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Accurate 3100, Accurate High Country, ADI AR 2209 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. ReloadSwiss RS 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .338 Lapua Mag. Ackley Improved with the .338 | 154gr | Reichenberg Spezial Jagd 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.