Load Specifications
Bullet:.338 | 190gr | Hammer HHT
Bullet Manufacturer:Hammer
Bullet Weight:190 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338 Blaser Mag. load data
Case Length (l3):2.5078"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:92.6 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:60,916 psi
Recommended Twist Rate:1:11.5
Load data in caliber .338 Blaser Mag. with .338 | 190gr | Hammer HHT bullet and 100 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, 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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 54,244 psi | 89% | 2822 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 52,504 psi | 86% | 2844 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 52,199 psi | 86% | 2841 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,389 psi | 89% | 2910 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 52,112 psi | 86% | 2887 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,401 psi | 84% | 2953 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 53,301 psi | 88% | 2917 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 94% | 54,259 psi | 89% | 2917 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 52,562 psi | 86% | 2874 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 52,736 psi | 87% | 2851 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 53,983 psi | 89% | 2979 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 52,591 psi | 86% | 3028 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 53,925 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,925 psi | 89% | 2828 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,462 psi | 89% | 2956 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,980 psi | 82% | 2956 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,288 psi | 89% | 3054 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,491 psi | 58% | 2677 fps | 97% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,997 psi | 87% | 2930 fps | 99.2% |
| Bofors RP3 | <<locked>> | 94% | 54,288 psi | 89% | 2953 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 54,752 psi | 90% | 2910 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,346 psi | 89% | 2858 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,027 psi | 90% | 2953 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 52,997 psi | 87% | 2992 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 82% | 52,866 psi | 87% | 2867 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,969 psi | 89% | 2894 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 52,127 psi | 86% | 2910 fps | 98.6% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,563 psi | 90% | 3005 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 88% | 53,809 psi | 88% | 2930 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,035 psi | 76% | 2831 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,736 psi | 87% | 2959 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 52,040 psi | 85% | 2979 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,983 psi | 57% | 1775 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,085 psi | 90% | 2930 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 53,388 psi | 88% | 2917 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,708 psi | 88% | 2897 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,027 psi | 89% | 2874 fps | 96.9% |
| IMR 4198 | <<locked>> | 82% | 54,201 psi | 89% | 2785 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,474 psi | 85% | 2881 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,548 psi | 88% | 2894 fps | 96.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,718 psi | 80% | 2890 fps | 98.6% |
| IMR 4895 | <<locked>> | 90% | 52,460 psi | 86% | 2936 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 86% | 52,562 psi | 86% | 2874 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 52,504 psi | 86% | 2858 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 52,576 psi | 86% | 2894 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,287 psi | 87% | 2848 fps | 99.7% |
| Lovex S062 | <<locked>> | 92% | 53,447 psi | 88% | 2897 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 52,489 psi | 86% | 2887 fps | 98% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,229 psi | 87% | 2920 fps | 97.1% |
| Norma 201 | <<locked>> | 88% | 52,025 psi | 85% | 2864 fps | 100% |
| Norma 202 | <<locked>> | 88% | 52,547 psi | 86% | 2871 fps | 100% |
| Norma 203B | <<locked>> | 92% | 53,621 psi | 88% | 2943 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 50,763 psi | 83% | 2943 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 92% | 54,099 psi | 89% | 2969 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,835 psi | 82% | 2933 fps | 97.2% |
| Ramshot TAC | <<locked>> | 86% | 52,852 psi | 87% | 2884 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 52,185 psi | 86% | 2907 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,534 psi | 88% | 2871 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,433 psi | 58% | 1818 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 52,083 psi | 86% | 2854 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,620 psi | 86% | 2887 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,665 psi | 90% | 3025 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,114 psi | 89% | 3058 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,010 psi | 84% | 2976 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,474 psi | 85% | 2999 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 86% | 53,229 psi | 87% | 2851 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 52,475 psi | 86% | 2861 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,143 psi | 89% | 2943 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 54,752 psi | 90% | 2910 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 52,489 psi | 86% | 2887 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,576 psi | 86% | 2894 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,447 psi | 88% | 2897 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,229 psi | 87% | 2920 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,071 psi | 90% | 2874 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 52,475 psi | 86% | 2953 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,752 psi | 90% | 2848 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,650 psi | 90% | 2917 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,085 psi | 90% | 2940 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,954 psi | 89% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,722 psi | 88% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,040 psi | 87% | 2838 fps | 96.7% |
| Somchem S321 | <<locked>> | 84% | 53,577 psi | 88% | 2907 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,069 psi | 87% | 2805 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,114 psi | 89% | 2910 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 54,520 psi | 90% | 2940 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,324 psi | 74% | 2894 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 53,780 psi | 88% | 2776 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,041 psi | 89% | 2795 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 51,837 psi | 85% | 2831 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 52,939 psi | 87% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 52,736 psi | 87% | 2871 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,476 psi | 88% | 2943 fps | 99% |
| Vihtavuori N530 | <<locked>> | 86% | 52,823 psi | 87% | 2871 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,636 psi | 90% | 2894 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,359 psi | 86% | 2946 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,130 psi | 63% | 2756 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,331 psi | 89% | 2923 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 52,315 psi | 86% | 2917 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,810 psi | 90% | 3009 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,882 psi | 90% | 2949 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% | 45,078 psi | 74% | 2684 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,095 psi | 81% | 2792 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,579 psi | 62% | 2602 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,295 psi | 73% | 2749 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,491 psi | 58% | 2589 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 36,158 psi | 59% | 2664 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 41,452 psi | 68% | 2703 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 35,259 psi | 58% | 2549 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,468 psi | 71% | 2717 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 43,076 psi | 71% | 2710 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,604 psi | 83% | 2923 fps | 99.8% |
| Alliant Power Pro 2000-MR | 60.8 gr | 80% | 37,405 psi | 61% | 2717 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,679 psi | 57% | 2572 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,821 psi | 83% | 2782 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,289 psi | 61% | 2635 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,709 psi | 60% | 2674 fps | 95.6% |
| Alliant Reloder-17 | 61.4 gr | 82% | 31,923 psi | 52% | 2579 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,444 psi | 52% | 2566 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,393 psi | 66% | 2700 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 33,997 psi | 56% | 2569 fps | 97.3% |
| Bofors RP7 | <<locked>> | 94% | 48,312 psi | 79% | 2805 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,324 psi | 74% | 2707 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,901 psi | 69% | 2733 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,006 psi | 76% | 2871 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,574 psi | 81% | 2818 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,517 psi | 83% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,463 psi | 62% | 2628 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 96% | 47,834 psi | 79% | 2890 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 41,800 psi | 69% | 2717 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,560 psi | 52% | 2513 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,594 psi | 62% | 2677 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 96% | 48,399 psi | 79% | 2913 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,005 psi | 43% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,118 psi | 66% | 2667 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 41,147 psi | 68% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,970 psi | 61% | 2582 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,848 psi | 79% | 2766 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 51,039 psi | 84% | 2743 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,182 psi | 79% | 2825 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,456 psi | 78% | 2789 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 35,070 psi | 58% | 2618 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 38,130 psi | 63% | 2664 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 43,468 psi | 71% | 2717 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 48,907 psi | 80% | 2802 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,118 psi | 66% | 2684 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,742 psi | 69% | 2641 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 36,753 psi | 60% | 2589 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 41,075 psi | 67% | 2677 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 47,036 psi | 77% | 2812 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 40,524 psi | 67% | 2654 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,857 psi | 67% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,651 psi | 60% | 2621 fps | 97% |
| Norma URP | <<locked>> | 90% | 36,666 psi | 60% | 2664 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 36,042 psi | 59% | 2628 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 43,671 psi | 72% | 2815 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 43,265 psi | 71% | 2710 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,656 psi | 70% | 2736 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,949 psi | 77% | 2762 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,339 psi | 43% | 1627 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,718 psi | 80% | 2802 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,221 psi | 71% | 2720 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,537 psi | 63% | 2726 fps | 97% |
| ReloadSwiss RS 60 | 59.9 gr | 80% | 31,821 psi | 52% | 2592 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,114 psi | 59% | 2680 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,233 psi | 64% | 2749 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 44,411 psi | 73% | 2707 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,566 psi | 63% | 2608 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 32,082 psi | 53% | 2513 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 48,312 psi | 79% | 2805 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,075 psi | 67% | 2677 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,118 psi | 66% | 2684 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,753 psi | 60% | 2589 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 96% | 47,036 psi | 77% | 2812 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,503 psi | 85% | 2818 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,996 psi | 54% | 2559 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,590 psi | 85% | 2805 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,423 psi | 68% | 2684 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,871 psi | 65% | 2667 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,177 psi | 69% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,838 psi | 57% | 2480 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,325 psi | 76% | 2730 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 46,804 psi | 77% | 2795 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,597 psi | 68% | 2618 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,133 psi | 68% | 2684 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 32,953 psi | 54% | 2520 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 28,805 psi | 47% | 2500 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 47,659 psi | 78% | 2687 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,366 psi | 70% | 2615 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,840 psi | 62% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,638 psi | 63% | 2605 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,372 psi | 52% | 2461 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 36,100 psi | 59% | 2615 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 43,453 psi | 71% | 2710 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 37,072 psi | 61% | 2592 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 37,753 psi | 62% | 2671 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 33,489 psi | 55% | 2644 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,952 psi | 52% | 2484 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 42,612 psi | 70% | 2753 fps | 99.7% |
| Winchester 760 | <<locked>> | 94% | 44,904 psi | 74% | 2835 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,262 psi | 64% | 2674 fps | 98.2% |
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 100 powders for .338 Blaser Mag. loaded with the .338 | 190gr | Hammer HHT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,058 fps; across all powders the maximum-charge window runs from 1,775 fps to 3,058 fps. Accurate 4350 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.338" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .338 Blaser Mag. with the .338 | 190gr | Hammer HHT 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.