Load Specifications
Load data in caliber .300 Blaser Mag. with .308 | 165gr | Nosler Ballistic Tip Hunting bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Norma MRP.
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 2495 | <<locked>> | 82% | 54,418 psi | 89% | 2894 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 52,156 psi | 86% | 2907 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,548 psi | 88% | 3009 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 54,868 psi | 90% | 2953 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 51,938 psi | 85% | 3005 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 54,592 psi | 90% | 3156 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 86% | 54,955 psi | 90% | 2986 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,055 psi | 87% | 3048 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,317 psi | 89% | 3097 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,201 psi | 89% | 3114 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,113 psi | 87% | 3045 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,460 psi | 86% | 2959 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,591 psi | 86% | 2979 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,765 psi | 87% | 3068 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,954 psi | 89% | 3091 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,388 psi | 86% | 3035 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,156 psi | 87% | 3094 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,154 psi | 82% | 3025 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,772 psi | 72% | 2946 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,882 psi | 88% | 3173 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,602 psi | 80% | 3012 fps | 97% |
| Bofors RP3 | <<locked>> | 84% | 53,026 psi | 87% | 2972 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,156 psi | 87% | 3094 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 52,576 psi | 86% | 2956 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 84% | 53,432 psi | 88% | 2989 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,172 psi | 89% | 3061 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 54,012 psi | 89% | 3018 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 98% | 54,389 psi | 89% | 3041 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,432 psi | 88% | 3025 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,011 psi | 87% | 2986 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,665 psi | 90% | 3028 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,331 psi | 89% | 3097 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,419 psi | 60% | 1883 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,375 psi | 89% | 2966 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,606 psi | 88% | 2949 fps | 99% |
| IMR 4350 | <<locked>> | 92% | 53,635 psi | 88% | 2992 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,302 psi | 89% | 2986 fps | 99% |
| IMR 4831 | <<locked>> | 92% | 52,576 psi | 86% | 2999 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,925 psi | 89% | 3009 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,678 psi | 86% | 2972 fps | 96% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,764 psi | 85% | 3068 fps | 96.4% |
| Lovex S062 | <<locked>> | 84% | 54,723 psi | 90% | 2963 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,288 psi | 89% | 2982 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 52,315 psi | 86% | 2969 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,396 psi | 73% | 2851 fps | 98.4% |
| Norma 203B | <<locked>> | 82% | 51,895 psi | 85% | 2966 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,099 psi | 89% | 3041 fps | 97.8% |
| Norma MRP | <<locked>> | 98% | 52,692 psi | 87% | 3123 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 54,389 psi | 89% | 3048 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,489 psi | 86% | 2989 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,967 psi | 85% | 3081 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 92% | 53,055 psi | 87% | 3045 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,383 psi | 76% | 2949 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 61% | 1926 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,403 psi | 88% | 2972 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,476 psi | 88% | 3084 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,808 psi | 85% | 3028 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,925 psi | 89% | 3114 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,786 psi | 70% | 2966 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 53,388 psi | 88% | 2923 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,127 psi | 87% | 2969 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,853 psi | 90% | 3018 fps | 97% |
| Rottweil R 905 | <<locked>> | 96% | 51,474 psi | 85% | 3018 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 88% | 52,576 psi | 86% | 2956 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,288 psi | 89% | 2982 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 54,723 psi | 90% | 2963 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,315 psi | 86% | 2969 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,708 psi | 90% | 3031 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,317 psi | 89% | 2854 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,070 psi | 89% | 2930 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,766 psi | 90% | 3077 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 53,156 psi | 87% | 2963 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 53,069 psi | 87% | 2953 fps | 95.8% |
| Somchem S365 | <<locked>> | 94% | 53,577 psi | 88% | 3051 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 52,315 psi | 86% | 2995 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 82% | 53,577 psi | 88% | 2884 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,780 psi | 88% | 2897 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,592 psi | 90% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,881 psi | 87% | 2986 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,605 psi | 85% | 2969 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 82% | 52,156 psi | 86% | 2894 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 52,083 psi | 86% | 2989 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 52,707 psi | 87% | 3054 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,084 psi | 87% | 3107 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,562 psi | 86% | 2953 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,404 psi | 89% | 3064 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,440 psi | 75% | 3087 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,170 psi | 86% | 2986 fps | 97.6% |
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 2495 | <<locked>> | 80% | 51,039 psi | 84% | 2844 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,849 psi | 80% | 2851 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 33,214 psi | 55% | 2605 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 48,312 psi | 79% | 2851 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,869 psi | 61% | 2710 fps | 98% |
| Accurate High Country | 75 gr | 94% | 47,413 psi | 78% | 3025 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 45,730 psi | 75% | 2828 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,540 psi | 71% | 2864 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 47,514 psi | 78% | 2969 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,531 psi | 83% | 3051 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,700 psi | 72% | 2867 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,238 psi | 76% | 2854 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,356 psi | 81% | 2923 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,998 psi | 59% | 2723 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,756 psi | 67% | 2854 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,192 psi | 71% | 2858 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,526 psi | 71% | 2913 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,310 psi | 43% | 2461 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,939 psi | 56% | 2703 fps | 95.9% |
| Alliant Reloder-26 | 69 gr | 84% | 32,184 psi | 53% | 2700 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 42,757 psi | 70% | 2894 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 46,412 psi | 76% | 2861 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,526 psi | 71% | 2913 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 40,886 psi | 67% | 2726 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 46,891 psi | 77% | 2874 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,841 psi | 64% | 2759 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,669 psi | 68% | 2779 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 50,937 psi | 84% | 2979 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,821 psi | 82% | 2959 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,504 psi | 55% | 2612 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,097 psi | 84% | 2972 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 37,739 psi | 62% | 2762 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 45% | 1683 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,109 psi | 79% | 2861 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,430 psi | 83% | 2890 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 39,131 psi | 64% | 2707 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,279 psi | 69% | 2759 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 35,462 psi | 58% | 2664 fps | 97.7% |
| IMR 4895 | <<locked>> | 80% | 50,647 psi | 83% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,530 psi | 81% | 2917 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 48,428 psi | 80% | 3005 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 48,298 psi | 79% | 2861 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,827 psi | 65% | 2707 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 38,116 psi | 63% | 2687 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 34,243 psi | 56% | 2628 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 48,733 psi | 80% | 2910 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,179 psi | 73% | 2858 fps | 95.6% |
| Norma MRP | 70.2 gr | 88% | 37,246 psi | 61% | 2799 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 36,651 psi | 60% | 2707 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 49,095 psi | 81% | 2933 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,312 psi | 79% | 3012 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 35,607 psi | 58% | 2690 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 40,190 psi | 66% | 2818 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 45% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,833 psi | 77% | 2854 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,323 psi | 71% | 2910 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,550 psi | 60% | 2726 fps | 97.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,650 psi | 59% | 2733 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,784 psi | 65% | 2890 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 50,183 psi | 82% | 2874 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,743 psi | 72% | 2808 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,312 psi | 79% | 2904 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 90% | 42,235 psi | 69% | 2841 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 40,886 psi | 67% | 2726 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,827 psi | 65% | 2707 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 48,298 psi | 79% | 2861 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,116 psi | 63% | 2687 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,933 psi | 74% | 2864 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,034 psi | 74% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,059 psi | 64% | 2651 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,843 psi | 69% | 2835 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 44,019 psi | 72% | 2805 fps | 99.9% |
| Somchem S361 | <<locked>> | 92% | 49,487 psi | 81% | 2890 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 33,069 psi | 54% | 2661 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 40,190 psi | 66% | 2762 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 50,227 psi | 82% | 2835 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,502 psi | 83% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,105 psi | 69% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,101 psi | 63% | 2707 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,436 psi | 65% | 2736 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 48,849 psi | 80% | 2841 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,536 psi | 62% | 2707 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 28,935 psi | 48% | 2543 fps | 95.8% |
| Vihtavuori N560 | <<locked>> | 96% | 49,574 psi | 81% | 3045 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,231 psi | 61% | 2674 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 38,841 psi | 64% | 2759 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,787 psi | 41% | 2480 fps | 95.1% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,482 psi | 70% | 2805 fps | 95.3% |
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 88 powders for .300 Blaser Mag. loaded with the .308 | 165gr | Nosler Ballistic Tip Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,173 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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 Reloder-26, Accurate High Country, Norma MRP rank at the top here: for .300 Blaser Mag. with the .308 | 165gr | Nosler Ballistic Tip Hunting 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.