Load Specifications
Bullet:.338 | 185gr | Hornady CX
Bullet Manufacturer:Hornady
Bullet Weight:185 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:1:12.5
Load data in caliber .338 Blaser Mag. with .338 | 185gr | Hornady CX bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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% | 52,373 psi | 86% | 2844 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,215 psi | 89% | 2920 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,243 psi | 87% | 2907 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 52,446 psi | 86% | 2930 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 54,273 psi | 89% | 2900 fps | 95.8% |
| Accurate 4064 | <<locked>> | 94% | 53,127 psi | 87% | 2949 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,110 psi | 81% | 2963 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 90% | 55,027 psi | 90% | 2992 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 52,692 psi | 87% | 2936 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,375 psi | 89% | 2946 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 54,418 psi | 89% | 2923 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 52,199 psi | 86% | 2999 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,694 psi | 90% | 3110 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,112 psi | 86% | 2956 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 52,286 psi | 86% | 2854 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 52,968 psi | 87% | 2979 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,559 psi | 80% | 2976 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,823 psi | 87% | 3077 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,055 psi | 56% | 2677 fps | 96.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,723 psi | 90% | 2835 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,071 psi | 90% | 3009 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 52,431 psi | 86% | 2972 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 53,185 psi | 87% | 2930 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,026 psi | 87% | 2884 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 53,171 psi | 87% | 2972 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,474 psi | 85% | 3015 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 84% | 54,926 psi | 90% | 2943 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 52,460 psi | 86% | 2917 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,867 psi | 88% | 2982 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 52,823 psi | 87% | 3022 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 88% | 52,185 psi | 86% | 2953 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,541 psi | 73% | 2848 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,607 psi | 90% | 3035 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 54,389 psi | 89% | 3061 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,650 psi | 57% | 1801 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 53,606 psi | 88% | 2956 fps | 99.8% |
| IMR 3031 | <<locked>> | 90% | 54,998 psi | 90% | 2989 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 52,156 psi | 86% | 2917 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,823 psi | 87% | 2897 fps | 96.5% |
| IMR 4198 | <<locked>> | 82% | 52,736 psi | 87% | 2815 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,996 psi | 85% | 2913 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,949 psi | 77% | 2907 fps | 98.2% |
| IMR 4895 | <<locked>> | 92% | 54,288 psi | 89% | 3015 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 54,375 psi | 89% | 2946 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,215 psi | 89% | 2930 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,244 psi | 89% | 2966 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 51,967 psi | 85% | 2871 fps | 99.5% |
| Lovex S062 | <<locked>> | 94% | 55,042 psi | 90% | 2969 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,128 psi | 89% | 2956 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 51,503 psi | 85% | 2936 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 53,577 psi | 88% | 2936 fps | 100% |
| Norma 202 | <<locked>> | 90% | 54,244 psi | 89% | 2943 fps | 100% |
| Norma 203B | <<locked>> | 92% | 52,098 psi | 86% | 2966 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 49,095 psi | 81% | 2959 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 92% | 52,504 psi | 86% | 2989 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,211 psi | 79% | 2946 fps | 96.6% |
| Ramshot TAC | <<locked>> | 88% | 54,969 psi | 90% | 2963 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,027 psi | 89% | 2979 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,040 psi | 85% | 2894 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 57% | 1847 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 53,940 psi | 89% | 2930 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,375 psi | 89% | 2959 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 52,837 psi | 87% | 3045 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,721 psi | 87% | 3084 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2986 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,966 psi | 82% | 3012 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 88% | 54,447 psi | 89% | 2920 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,070 psi | 89% | 2933 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 52,112 psi | 86% | 2959 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 98% | 53,185 psi | 87% | 2930 fps | 96% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,128 psi | 89% | 2956 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,244 psi | 89% | 2966 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,042 psi | 90% | 2969 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 51,503 psi | 85% | 2936 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,606 psi | 88% | 2897 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,230 psi | 89% | 3025 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,243 psi | 87% | 2877 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,794 psi | 87% | 2933 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,447 psi | 88% | 2963 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,344 psi | 86% | 2831 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,243 psi | 86% | 2828 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,824 psi | 90% | 2910 fps | 96.8% |
| Somchem S321 | <<locked>> | 84% | 51,895 psi | 85% | 2927 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 54,766 psi | 90% | 2877 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,431 psi | 86% | 2927 fps | 99.5% |
| Somchem S355 | <<locked>> | 96% | 52,910 psi | 87% | 2959 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,656 psi | 72% | 2907 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 52,243 psi | 86% | 2802 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,446 psi | 86% | 2822 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 53,519 psi | 88% | 2900 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,679 psi | 90% | 2917 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,317 psi | 89% | 2940 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,561 psi | 85% | 2956 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 88% | 54,911 psi | 90% | 2946 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 52,881 psi | 87% | 2913 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,618 psi | 83% | 2959 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,216 psi | 59% | 2756 fps | 96.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,634 psi | 86% | 2943 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 54,462 psi | 89% | 2995 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 53,040 psi | 87% | 3025 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 53,345 psi | 88% | 2972 fps | 99.9% |
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% | 43,381 psi | 71% | 2703 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,326 psi | 78% | 2812 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,375 psi | 58% | 2605 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,409 psi | 70% | 2762 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 50,778 psi | 83% | 2844 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 33,518 psi | 55% | 2589 fps | 99.4% |
| Accurate 4350 | <<locked>> | 92% | 36,985 psi | 61% | 2726 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 39,929 psi | 66% | 2717 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 33,953 psi | 56% | 2559 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,047 psi | 69% | 2733 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 41,437 psi | 68% | 2730 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,936 psi | 80% | 2943 fps | 99.6% |
| Alliant Power Pro 2000-MR | 61.6 gr | 80% | 36,100 psi | 59% | 2723 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,170 psi | 54% | 2579 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,037 psi | 81% | 2805 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,752 psi | 59% | 2641 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 92% | 37,666 psi | 62% | 2740 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,750 psi | 54% | 2644 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,024 psi | 53% | 2621 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,169 psi | 84% | 2785 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,986 psi | 64% | 2713 fps | 96.3% |
| Bofors RP3 | <<locked>> | 80% | 32,285 psi | 53% | 2572 fps | 96.5% |
| Bofors RP7 | <<locked>> | 96% | 49,966 psi | 82% | 2877 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,976 psi | 72% | 2726 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,379 psi | 66% | 2746 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,440 psi | 73% | 2887 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 80% | 48,066 psi | 79% | 2841 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,066 psi | 81% | 2867 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,363 psi | 63% | 2690 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 96% | 46,267 psi | 76% | 2904 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,248 psi | 66% | 2730 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,213 psi | 53% | 2575 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,201 psi | 59% | 2690 fps | 97.7% |
| Hodgdon Superformance | <<locked>> | 98% | 50,502 psi | 83% | 2992 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,788 psi | 42% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,754 psi | 64% | 2680 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 39,523 psi | 65% | 2736 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,592 psi | 58% | 2595 fps | 95.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,458 psi | 81% | 2841 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 49,661 psi | 82% | 2769 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 48,907 psi | 80% | 2861 fps | 95.5% |
| IMR 4831 | <<locked>> | 92% | 35,766 psi | 59% | 2677 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 36,579 psi | 60% | 2674 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 42,047 psi | 69% | 2733 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 47,094 psi | 77% | 2818 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 38,479 psi | 63% | 2694 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 40,451 psi | 66% | 2657 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 35,201 psi | 58% | 2598 fps | 97.7% |
| Lovex S065 | <<locked>> | 92% | 42,090 psi | 69% | 2743 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 45,252 psi | 74% | 2822 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,885 psi | 64% | 2667 fps | 98.5% |
| Norma 202 | <<locked>> | 80% | 39,305 psi | 65% | 2687 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 35,114 psi | 58% | 2631 fps | 96.3% |
| Norma URP | <<locked>> | 92% | 37,521 psi | 62% | 2730 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 34,664 psi | 57% | 2638 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 98% | 45,107 psi | 74% | 2887 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 41,916 psi | 69% | 2726 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,249 psi | 68% | 2753 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,556 psi | 75% | 2782 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,020 psi | 43% | 1654 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,210 psi | 78% | 2822 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,599 psi | 73% | 2789 fps | 95.3% |
| ReloadSwiss RS 52 | 59.7 gr | 80% | 37,072 psi | 61% | 2740 fps | 96.3% |
| ReloadSwiss RS 60 | 60.6 gr | 80% | 30,429 psi | 50% | 2589 fps | 97.3% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,927 psi | 61% | 2743 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,466 psi | 66% | 2815 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 42,627 psi | 70% | 2720 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,985 psi | 61% | 2618 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 30,371 psi | 50% | 2513 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 96% | 49,966 psi | 82% | 2877 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,090 psi | 69% | 2743 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,479 psi | 63% | 2694 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 35,201 psi | 58% | 2598 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 96% | 45,252 psi | 74% | 2822 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,082 psi | 82% | 2841 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,924 psi | 56% | 2625 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,140 psi | 82% | 2828 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,871 psi | 65% | 2694 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,551 psi | 63% | 2684 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,770 psi | 67% | 2638 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,547 psi | 55% | 2497 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,863 psi | 79% | 2799 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 45,237 psi | 74% | 2815 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 40,074 psi | 66% | 2635 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,726 psi | 65% | 2697 fps | 97.5% |
| Somchem S355 | <<locked>> | 80% | 31,430 psi | 52% | 2526 fps | 95.5% |
| Somchem S365 | <<locked>> | 88% | 29,269 psi | 48% | 2552 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 46,267 psi | 76% | 2713 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,031 psi | 67% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,274 psi | 60% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,130 psi | 61% | 2618 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,907 psi | 49% | 2464 fps | 96.5% |
| Vihtavuori N160 | <<locked>> | 90% | 36,970 psi | 61% | 2677 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 41,916 psi | 69% | 2726 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 35,737 psi | 59% | 2605 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 92% | 38,682 psi | 64% | 2733 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 98% | 33,910 psi | 56% | 2697 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,837 psi | 54% | 2549 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 41,205 psi | 68% | 2769 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 46,267 psi | 76% | 2904 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,666 psi | 62% | 2684 fps | 97.7% |
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 101 powders for .338 Blaser Mag. loaded with the .338 | 185gr | Hornady CX. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,801 fps to 3,110 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.338" calls for a 1:12.5 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .338 Blaser Mag. with the .338 | 185gr | Hornady CX 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.