Load Specifications
Load data in caliber .338 Blaser Mag. with .338 | 210gr | Fox Classic Hunter bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, Hodgdon Superformance 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.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 53,548 psi | 88% | 2680 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,100 psi | 90% | 2746 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,650 psi | 88% | 2766 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,911 psi | 90% | 2753 fps | 97.4% |
| Accurate 4064 | <<locked>> | 92% | 54,926 psi | 90% | 2792 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,430 psi | 84% | 2828 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 52,692 psi | 87% | 2782 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 53,679 psi | 88% | 2779 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,909 psi | 85% | 2733 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 52,330 psi | 86% | 2707 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 52,141 psi | 86% | 2894 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 53,548 psi | 88% | 2802 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 54,070 psi | 89% | 2822 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,069 psi | 87% | 2887 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 54,375 psi | 89% | 2927 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,507 psi | 62% | 2625 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,814 psi | 69% | 2776 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,518 psi | 86% | 2795 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 53,954 psi | 89% | 2815 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 54,418 psi | 89% | 2789 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,708 psi | 88% | 2717 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,447 psi | 89% | 2812 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,707 psi | 87% | 2858 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 92% | 55,085 psi | 90% | 2831 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 98% | 54,665 psi | 90% | 2881 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 94% | 51,967 psi | 85% | 2789 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 53,243 psi | 87% | 2792 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,342 psi | 81% | 2762 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 52,431 psi | 86% | 2822 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 51,706 psi | 85% | 2861 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,215 psi | 58% | 1693 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,520 psi | 90% | 2795 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 53,011 psi | 87% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,330 psi | 88% | 2766 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,272 psi | 87% | 2743 fps | 97.9% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,578 psi | 90% | 2815 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,011 psi | 87% | 2769 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,069 psi | 85% | 2818 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 52,054 psi | 85% | 2802 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 51,909 psi | 85% | 2733 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,199 psi | 86% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,475 psi | 86% | 2710 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 52,866 psi | 87% | 2759 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,025 psi | 85% | 2759 fps | 98.8% |
| Lovex S070 | <<locked>> | 98% | 52,895 psi | 87% | 2795 fps | 98.1% |
| Norma 201 | <<locked>> | 88% | 54,766 psi | 90% | 2776 fps | 100% |
| Norma 202 | <<locked>> | 86% | 51,953 psi | 85% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 90% | 53,243 psi | 87% | 2808 fps | 100% |
| Norma 204 | <<locked>> | 98% | 51,517 psi | 85% | 2805 fps | 95.8% |
| Norma URPᴾ | <<locked>> | 100% | 54,230 psi | 89% | 2871 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 53,838 psi | 88% | 2835 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,084 psi | 87% | 2867 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 52,069 psi | 85% | 2753 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,100 psi | 90% | 2822 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,663 psi | 86% | 2736 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,694 psi | 59% | 1736 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,694 psi | 90% | 2762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 51,938 psi | 85% | 2759 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,694 psi | 90% | 2890 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,143 psi | 89% | 2923 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,882 psi | 90% | 2907 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,752 psi | 90% | 2936 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 52,257 psi | 86% | 2707 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 55,056 psi | 90% | 2772 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 53,824 psi | 88% | 2808 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,418 psi | 89% | 2789 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,025 psi | 85% | 2759 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,199 psi | 86% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 52,866 psi | 87% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 52,895 psi | 87% | 2795 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,185 psi | 86% | 2818 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,867 psi | 88% | 2782 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,650 psi | 90% | 2805 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,185 psi | 87% | 2667 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 53,243 psi | 87% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,417 psi | 86% | 2713 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 52,794 psi | 87% | 2766 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,460 psi | 86% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 53,563 psi | 88% | 2772 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 54,114 psi | 89% | 2805 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,573 psi | 80% | 2818 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 52,997 psi | 87% | 2631 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,505 psi | 88% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,984 psi | 90% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,388 psi | 86% | 2707 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,359 psi | 86% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 53,476 psi | 88% | 2815 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 52,112 psi | 86% | 2733 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,925 psi | 89% | 2753 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 52,330 psi | 86% | 2822 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,915 psi | 67% | 2697 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,896 psi | 88% | 2799 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,069 psi | 85% | 2779 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,665 psi | 90% | 2881 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,460 psi | 55% | 2618 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,317 psi | 89% | 2808 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 47,079 psi | 77% | 2589 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,392 psi | 65% | 2513 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,702 psi | 77% | 2664 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,121 psi | 74% | 2592 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 37,289 psi | 61% | 2507 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,256 psi | 51% | 2434 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 43,453 psi | 71% | 2625 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,883 psi | 61% | 2477 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,585 psi | 75% | 2635 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,861 psi | 75% | 2618 fps | 100% |
| Alliant Power Pro 2000-MR | 60.7 gr | 80% | 39,407 psi | 65% | 2654 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,419 psi | 60% | 2500 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,146 psi | 64% | 2559 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,068 psi | 53% | 2454 fps | 95.2% |
| Alliant Reloder-17 | 59.8 gr | 80% | 31,328 psi | 51% | 2464 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,196 psi | 48% | 2408 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,765 psi | 55% | 2585 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,801 psi | 70% | 2631 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 35,766 psi | 59% | 2497 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 45,005 psi | 74% | 2631 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,514 psi | 78% | 2625 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,222 psi | 73% | 2654 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,182 psi | 81% | 2802 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 36,883 psi | 61% | 2507 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 90% | 41,655 psi | 68% | 2657 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 92% | 48,820 psi | 80% | 2736 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 43,830 psi | 72% | 2635 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,354 psi | 45% | 2300 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,943 psi | 66% | 2612 fps | 99.4% |
| Hodgdon Superformance | 72.7 gr | 92% | 44,657 psi | 73% | 2736 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 43% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,134 psi | 69% | 2589 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 43,526 psi | 71% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,725 psi | 64% | 2510 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,365 psi | 68% | 2533 fps | 95.2% |
| IMR 4350 | <<locked>> | 94% | 45,049 psi | 74% | 2657 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,423 psi | 68% | 2562 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 32,634 psi | 54% | 2451 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 40,089 psi | 66% | 2592 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,585 psi | 75% | 2635 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 42,482 psi | 70% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,743 psi | 72% | 2566 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 38,609 psi | 63% | 2516 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 35,853 psi | 59% | 2457 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 41,089 psi | 67% | 2589 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 42,482 psi | 70% | 2579 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 42,859 psi | 70% | 2585 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,522 psi | 63% | 2549 fps | 98.5% |
| Norma 204 | <<locked>> | 96% | 48,327 psi | 79% | 2753 fps | 95% |
| Norma URP | <<locked>> | 84% | 31,908 psi | 52% | 2441 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,043 psi | 62% | 2562 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 38,072 psi | 63% | 2589 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,542 psi | 75% | 2641 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,947 psi | 74% | 2661 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,356 psi | 81% | 2684 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,484 psi | 43% | 1549 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,140 psi | 84% | 2710 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,943 psi | 66% | 2543 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,220 psi | 68% | 2664 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,417 psi | 55% | 2533 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,417 psi | 55% | 2507 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,216 psi | 59% | 2575 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 46,311 psi | 76% | 2615 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,393 psi | 66% | 2530 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 33,663 psi | 55% | 2444 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 45,005 psi | 74% | 2631 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,853 psi | 59% | 2457 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,482 psi | 70% | 2605 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,609 psi | 63% | 2516 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 41,089 psi | 67% | 2589 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,882 psi | 57% | 2497 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,714 psi | 72% | 2615 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,076 psi | 69% | 2598 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,947 psi | 72% | 2530 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,448 psi | 60% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,931 psi | 70% | 2559 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 49,371 psi | 81% | 2713 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,569 psi | 72% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,555 psi | 72% | 2615 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 34,679 psi | 57% | 2454 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 24,889 psi | 41% | 2280 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 49,734 psi | 82% | 2589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,309 psi | 73% | 2523 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,798 psi | 65% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,567 psi | 67% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,938 psi | 54% | 2392 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 33,460 psi | 55% | 2448 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 45,600 psi | 75% | 2628 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,073 psi | 64% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,837 psi | 54% | 2448 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 92% | 31,270 psi | 51% | 2480 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,312 psi | 48% | 2320 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 45,353 psi | 74% | 2677 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 41,843 psi | 69% | 2661 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,514 psi | 45% | 2421 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,408 psi | 68% | 2598 fps | 99.4% |
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 96 powders for .338 Blaser Mag. loaded with the .338 | 210gr | Fox Classic Hunter. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,936 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.338" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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. Alliant Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .338 Blaser Mag. with the .338 | 210gr | Fox Classic Hunter 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.