Load Specifications
Load data in caliber .30 R Blaser with .308 | 155gr | Merlin Virtus bullet and 88 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 Reloder-17 and ReloadSwiss RS 70.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 52,707 psi | 90% | 2756 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 50,691 psi | 86% | 2766 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,040 psi | 90% | 2835 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 50,749 psi | 86% | 2808 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 50,647 psi | 86% | 2874 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 86% | 52,112 psi | 89% | 2844 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 92% | 53,084 psi | 90% | 2841 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,126 psi | 87% | 2799 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 51,576 psi | 88% | 2782 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 51,488 psi | 88% | 2949 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 52,910 psi | 90% | 2864 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 50,096 psi | 85% | 2828 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,460 psi | 89% | 2936 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,183 psi | 85% | 2923 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,159 psi | 63% | 2657 fps | 97.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,611 psi | 71% | 2805 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 51,880 psi | 88% | 2854 fps | 99% |
| Bofors RP3 | <<locked>> | 90% | 49,792 psi | 85% | 2822 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 52,997 psi | 90% | 2789 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 50,328 psi | 86% | 2825 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,011 psi | 89% | 2913 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 90% | 50,923 psi | 87% | 2831 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 96% | 50,386 psi | 86% | 2871 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 86% | 52,634 psi | 90% | 2858 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,602 psi | 83% | 2815 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 51,866 psi | 88% | 2884 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 60% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 50,589 psi | 86% | 2808 fps | 99.7% |
| IMR 3031 | <<locked>> | 86% | 52,127 psi | 89% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 52,547 psi | 89% | 2828 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 52,866 psi | 90% | 2805 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,518 psi | 89% | 2825 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,663 psi | 88% | 2874 fps | 99% |
| IMR 4895 | <<locked>> | 88% | 51,372 psi | 87% | 2861 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 84% | 51,126 psi | 87% | 2799 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 51,358 psi | 87% | 2818 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 51,909 psi | 88% | 2779 fps | 99.6% |
| Lovex S062 | <<locked>> | 90% | 52,112 psi | 89% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 51,445 psi | 88% | 2812 fps | 97.7% |
| Lovex S070 | <<locked>> | 98% | 52,214 psi | 89% | 2844 fps | 96.9% |
| Norma 201 | <<locked>> | 86% | 50,676 psi | 86% | 2789 fps | 99.9% |
| Norma 202 | <<locked>> | 86% | 51,300 psi | 87% | 2799 fps | 100% |
| Norma 203B | <<locked>> | 90% | 52,736 psi | 90% | 2871 fps | 99.7% |
| Norma URP | <<locked>> | 98% | 50,111 psi | 85% | 2867 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 88% | 49,647 psi | 85% | 2838 fps | 99.3% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,634 psi | 90% | 2913 fps | 97.7% |
| Ramshot TAC | <<locked>> | 84% | 51,329 psi | 87% | 2805 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 50,836 psi | 87% | 2825 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 51,938 psi | 88% | 2795 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,346 psi | 60% | 1821 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 51,605 psi | 88% | 2815 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 50,082 psi | 85% | 2887 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,024 psi | 85% | 2930 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 50,691 psi | 86% | 2900 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 50,647 psi | 86% | 2917 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 84% | 51,605 psi | 88% | 2782 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 51,053 psi | 87% | 2789 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 92% | 49,661 psi | 85% | 2812 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 51,445 psi | 88% | 2812 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 51,358 psi | 87% | 2818 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 52,112 psi | 89% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 52,214 psi | 89% | 2844 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 51,576 psi | 88% | 2874 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,142 psi | 90% | 2838 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 50,488 psi | 86% | 2812 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 52,359 psi | 89% | 2743 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,663 psi | 90% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,895 psi | 88% | 2766 fps | 96.5% |
| Somchem S321 | <<locked>> | 82% | 52,214 psi | 89% | 2828 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 51,779 psi | 88% | 2740 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,910 psi | 90% | 2835 fps | 99.6% |
| Somchem S355 | <<locked>> | 92% | 50,314 psi | 86% | 2815 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,935 psi | 82% | 2871 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 52,098 psi | 89% | 2710 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 52,620 psi | 90% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 50,749 psi | 86% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 51,779 psi | 88% | 2776 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 51,837 psi | 88% | 2802 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 52,765 psi | 90% | 2867 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 84% | 51,532 psi | 88% | 2799 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 50,053 psi | 85% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 51,938 psi | 88% | 2871 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,248 psi | 69% | 2733 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,038 psi | 85% | 2799 fps | 99.8% |
| Winchester 748 | <<locked>> | 84% | 51,358 psi | 87% | 2844 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 50,662 psi | 86% | 2874 fps | 96.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,127 psi | 56% | 2628 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 50,256 psi | 86% | 2818 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 46,383 psi | 79% | 2661 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,624 psi | 66% | 2572 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,977 psi | 78% | 2726 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,564 psi | 62% | 2559 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 38,058 psi | 65% | 2644 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 42,873 psi | 73% | 2680 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,347 psi | 62% | 2526 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,962 psi | 77% | 2694 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 44,802 psi | 76% | 2687 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,928 psi | 66% | 2697 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,839 psi | 61% | 2546 fps | 97.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,551 psi | 66% | 2612 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,940 psi | 61% | 2602 fps | 95.1% |
| Alliant Reloder-17 | 54.2 gr | 82% | 33,127 psi | 56% | 2559 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,663 psi | 56% | 2543 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,566 psi | 66% | 2736 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,061 psi | 72% | 2677 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 35,128 psi | 60% | 2543 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,717 psi | 80% | 2687 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,714 psi | 74% | 2710 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,240 psi | 82% | 2851 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 38,885 psi | 66% | 2605 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 94% | 47,065 psi | 80% | 2812 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 43,236 psi | 74% | 2694 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,735 psi | 56% | 2493 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,117 psi | 67% | 2654 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,049 psi | 44% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,524 psi | 71% | 2644 fps | 98.4% |
| IMR 3031 | <<locked>> | 80% | 42,685 psi | 73% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,145 psi | 65% | 2562 fps | 96.7% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,383 psi | 79% | 2694 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,311 psi | 79% | 2717 fps | 95% |
| IMR 4831 | <<locked>> | 90% | 36,724 psi | 63% | 2595 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,494 psi | 67% | 2641 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 80% | 44,962 psi | 77% | 2694 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 41,626 psi | 71% | 2657 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 43,018 psi | 73% | 2625 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 37,840 psi | 64% | 2566 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 42,569 psi | 72% | 2654 fps | 95.6% |
| Lovex S070 | <<locked>> | 94% | 46,122 psi | 79% | 2740 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 41,800 psi | 71% | 2635 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 42,206 psi | 72% | 2648 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,942 psi | 65% | 2598 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 38,435 psi | 65% | 2644 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,565 psi | 64% | 2608 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 94% | 43,004 psi | 73% | 2740 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 44,875 psi | 76% | 2694 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,295 psi | 75% | 2713 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,718 psi | 83% | 2743 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,237 psi | 45% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 44,976 psi | 77% | 2700 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,335 psi | 69% | 2710 fps | 97.2% |
| ReloadSwiss RS 60 | 52.8 gr | 80% | 32,837 psi | 56% | 2566 fps | 98.2% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,971 psi | 65% | 2657 fps | 95.4% |
| ReloadSwiss RS 70 | 61.7 gr | 92% | 41,075 psi | 70% | 2730 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 45,585 psi | 78% | 2684 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,726 psi | 68% | 2585 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 32,982 psi | 56% | 2484 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,569 psi | 72% | 2654 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,626 psi | 71% | 2657 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,840 psi | 64% | 2566 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 94% | 46,122 psi | 79% | 2740 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,214 psi | 58% | 2536 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,134 psi | 73% | 2664 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,350 psi | 70% | 2648 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,221 psi | 74% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,766 psi | 61% | 2457 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,428 psi | 82% | 2710 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 48,588 psi | 83% | 2772 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,902 psi | 73% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,815 psi | 73% | 2664 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 34,040 psi | 58% | 2497 fps | 96.4% |
| Somchem S365 | <<locked>> | 84% | 27,920 psi | 48% | 2415 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 48,921 psi | 83% | 2664 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,555 psi | 74% | 2595 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,986 psi | 66% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,813 psi | 68% | 2579 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 32,271 psi | 55% | 2434 fps | 97.3% |
| Vihtavuori N160 | <<locked>> | 88% | 37,579 psi | 64% | 2592 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 44,904 psi | 76% | 2687 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 38,450 psi | 65% | 2569 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 36,927 psi | 63% | 2592 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 35,259 psi | 60% | 2621 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,937 psi | 53% | 2405 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 44,498 psi | 76% | 2733 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 47,326 psi | 81% | 2818 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,980 psi | 53% | 2559 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,785 psi | 69% | 2651 fps | 98.4% |
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 88 powders for .30 R Blaser loaded with the .308 | 155gr | Merlin Virtus. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,781 fps to 2,949 fps. Alliant Reloder-16 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 (405 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 70 rank at the top here: for .30 R Blaser with the .308 | 155gr | Merlin Virtus 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.