Load data for .30 R Blaser + .308 | 155gr | Sierra MatchKing

.30 R Blaser cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:155 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.677"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:14.5

Load data in caliber .30 R Blaser with .308 | 155gr | Sierra MatchKing bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, 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.

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Max Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>82%51,967 psi88%2746 fps100%
Accurate 2495<<locked>>86%50,778 psi86%2766 fps100%
Accurate 2520<<locked>>82%50,618 psi86%2808 fps100%
Accurate 4064<<locked>>88%50,937 psi87%2808 fps100%
Accurate 4350<<locked>>96%50,502 psi86%2874 fps98.9%
ADI AR 2206H<<locked>>84%51,155 psi87%2835 fps99.6%
ADI AR 2208<<locked>>90%52,301 psi89%2835 fps99.4%
ADI Benchmark 8208<<locked>>82%50,154 psi85%2789 fps99.9%
Alliant AR-Comp<<locked>>82%50,821 psi87%2772 fps100%
Alliant Power Pro 2000-MR<<locked>>86%50,488 psi86%2936 fps99.2%
Alliant Reloder- TS 15.5<<locked>>90%52,388 psi89%2858 fps99.9%
Alliant Reloder-15<<locked>>88%52,750 psi90%2877 fps99.5%
Alliant Reloder-16<<locked>>98%51,851 psi88%2933 fps99.3%
Alliant Reloder-17<<locked>>94%53,127 psi90%2972 fps100%
Alliant Reloder-23ᴾ<<locked>>100%39,711 psi68%2717 fps98.3%
Alliant Reloder-26ᴾ<<locked>>100%44,469 psi76%2874 fps97.6%
Baschieri & Pellagri 107<<locked>>84%50,981 psi87%2841 fps99%
Bofors RP3<<locked>>90%52,692 psi90%2867 fps100%
Bofors RP7<<locked>>94%53,113 psi90%2838 fps96.4%
Hodgdon Benchmark<<locked>>82%51,909 psi88%2776 fps100%
Hodgdon BL-C2<<locked>>84%53,026 psi90%2867 fps100%
Hodgdon H380<<locked>>88%50,169 psi85%2822 fps98.4%
Hodgdon H414<<locked>>92%51,256 psi87%2890 fps96.7%
Hodgdon H4895<<locked>>84%51,634 psi88%2844 fps99.8%
Hodgdon Hybrid 100Vᴾ<<locked>>100%51,663 psi88%2864 fps99.9%
Hodgdon LEVERevolution<<locked>>88%51,068 psi87%2874 fps99.9%
Hodgdon Superformance<<locked>>94%50,357 psi86%2894 fps96%
Hodgdon TrailBossᴾ<<locked>>100%35,447 psi60%1795 fps100%
Hodgdon VARGET<<locked>>88%52,040 psi89%2835 fps99.8%
IMR 3031<<locked>>86%50,256 psi86%2815 fps100%
IMR 4064<<locked>>90%51,140 psi87%2808 fps99.4%
IMR 4166 Enduron<<locked>>90%50,589 psi86%2772 fps96.4%
IMR 4451 Enduron<<locked>>92%51,648 psi88%2815 fps96.5%
IMR 4831ᴾ<<locked>>100%48,457 psi82%2825 fps98.6%
IMR 4895<<locked>>86%50,720 psi86%2854 fps99.6%
IMR 8208 XBR<<locked>>82%50,154 psi85%2789 fps99.9%
Lovex D073.6<<locked>>84%50,850 psi87%2812 fps100%
Lovex S060<<locked>>84%50,778 psi86%2766 fps99.6%
Lovex S062<<locked>>88%51,764 psi88%2818 fps100%
Lovex S065<<locked>>94%51,111 psi87%2812 fps97.8%
Lovex S070<<locked>>96%51,822 psi88%2841 fps97%
Norma 201<<locked>>84%49,980 psi85%2782 fps99.9%
Norma 202<<locked>>84%50,444 psi86%2789 fps100%
Norma 203B<<locked>>88%51,996 psi89%2861 fps99.7%
Norma URP<<locked>>96%49,763 psi85%2864 fps98.7%
Ramshot Big Game<<locked>>88%52,431 psi89%2884 fps99.6%
Ramshot Hunter<<locked>>98%51,967 psi88%2907 fps97.7%
Ramshot TAC<<locked>>82%50,430 psi86%2795 fps97.9%
Ramshot Wild Boar<<locked>>82%50,096 psi85%2815 fps99.5%
ReloadSwiss RS 14ᴾ<<locked>>100%35,868 psi61%1837 fps100%
ReloadSwiss RS 50<<locked>>88%50,647 psi86%2805 fps97.1%
ReloadSwiss RS 52<<locked>>86%52,982 psi90%2936 fps99.5%
ReloadSwiss RS 60<<locked>>92%52,692 psi90%2972 fps100%
ReloadSwiss RS 62<<locked>>96%50,343 psi86%2894 fps98.7%
ReloadSwiss RS 70<<locked>>96%49,879 psi85%2913 fps98.3%
Rottweil R 901<<locked>>82%51,140 psi87%2776 fps100%
Rottweil R 902<<locked>>86%50,575 psi86%2782 fps99.9%
Rottweil R 903<<locked>>92%52,562 psi89%2861 fps99.9%
Rottweil R 907<<locked>>94%53,113 psi90%2838 fps96.4%
Shooters World Long Rifle<<locked>>94%51,111 psi87%2812 fps97.8%
Shooters World Match Rifle<<locked>>84%50,850 psi87%2812 fps100%
Shooters World Precision<<locked>>88%51,764 psi88%2818 fps100%
Shooters World SW4350<<locked>>96%51,822 psi88%2841 fps97%
SNPE Vectan SP 11<<locked>>90%50,923 psi87%2864 fps99.6%
SNPE Vectan SP 7<<locked>>84%52,286 psi89%2828 fps98.6%
SNPE Vectan SP 9<<locked>>86%52,924 psi90%2854 fps99.7%
SNPE Vectan Tubal 3000<<locked>>84%51,561 psi88%2733 fps100%
SNPE Vectan Tubal 5000<<locked>>90%51,648 psi88%2726 fps100%
SNPE Vectan Tubal 7000<<locked>>94%51,082 psi87%2759 fps96.5%
Somchem S335<<locked>>84%50,894 psi87%2726 fps100%
Somchem S341<<locked>>84%51,982 psi88%2822 fps99.6%
Somchem S355<<locked>>92%53,026 psi90%2861 fps99.9%
Somchem S365ᴾ<<locked>>100%51,097 psi87%2920 fps100%
Unknown powder<<locked>>94%50,821 psi87%2874 fps98.4%
Vihtavuori N133<<locked>>86%51,256 psi87%2717 fps100%
Vihtavuori N135<<locked>>86%50,270 psi86%2756 fps100%
Vihtavuori N140<<locked>>86%50,241 psi86%2759 fps100%
Vihtavuori N150<<locked>>96%51,169 psi87%2799 fps100%
Vihtavuori N160<<locked>>94%51,111 psi87%2841 fps98.8%
Vihtavuori N530<<locked>>82%53,069 psi90%2844 fps100%
Vihtavuori N540<<locked>>86%50,038 psi85%2782 fps100%
Vihtavuori N550<<locked>>94%51,576 psi88%2890 fps98.8%
Vihtavuori N555ᴾ<<locked>>100%43,439 psi74%2792 fps98.2%
Winchester 6.5 StaBALL<<locked>>96%52,533 psi89%2841 fps100%
Winchester 760<<locked>>92%51,256 psi87%2890 fps96.7%
Winchester StaBALL HDᴾ<<locked>>100%35,592 psi61%2707 fps98%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%48,892 psi83%2700 fps100%
Accurate 2495<<locked>>80%41,597 psi71%2621 fps100%
Accurate 2520<<locked>>80%47,137 psi80%2756 fps100%
Accurate 4064<<locked>>80%39,334 psi67%2612 fps100%
Accurate 4350<<locked>>86%35,520 psi60%2585 fps95.1%
ADI AR 2206H<<locked>>80%44,976 psi77%2726 fps98.8%
ADI AR 2208<<locked>>80%38,276 psi65%2572 fps96.7%
ADI Benchmark 8208<<locked>>80%47,065 psi80%2733 fps99.7%
Alliant AR-Comp<<locked>>80%47,384 psi81%2726 fps100%
Alliant Power Pro 2000-MR<<locked>>80%41,046 psi70%2749 fps97.3%
Alliant Reloder- TS 15.5<<locked>>80%37,985 psi65%2595 fps98.2%
Alliant Reloder-15<<locked>>80%40,712 psi69%2657 fps97.5%
Alliant Reloder-16<<locked>>86%35,737 psi61%2598 fps95.2%
Alliant Reloder-1754.3 gr80%32,909 psi56%2556 fps96%
Alliant Reloder-23<<locked>>94%32,895 psi56%2552 fps95.9%
Alliant Reloder-26<<locked>>96%38,479 psi66%2736 fps95.5%
Baschieri & Pellagri 107<<locked>>80%44,469 psi76%2726 fps97.9%
Bofors RP3<<locked>>80%37,681 psi64%2598 fps98.2%
Bofors RP7<<locked>>92%49,835 psi85%2782 fps95.6%
Hodgdon Benchmark<<locked>>80%48,733 psi83%2723 fps100%
Hodgdon BL-C2<<locked>>80%46,122 psi79%2756 fps99.9%
Hodgdon H380<<locked>>80%38,580 psi66%2602 fps95.6%
Hodgdon H414<<locked>>88%44,715 psi76%2772 fps95%
Hodgdon H4895<<locked>>80%45,440 psi77%2736 fps99.2%
Hodgdon Hybrid 100V<<locked>>84%30,792 psi52%2441 fps95.1%
Hodgdon LEVERevolution<<locked>>80%39,204 psi67%2657 fps98.5%
Hodgdon Superformance<<locked>>92%46,920 psi80%2828 fps95%
Hodgdon TrailBoss<<locked>>80%26,295 psi45%1604 fps100%
Hodgdon VARGET<<locked>>80%40,350 psi69%2625 fps98.3%
IMR 3031<<locked>>80%41,481 psi71%2671 fps100%
IMR 4064<<locked>>80%37,594 psi64%2549 fps96.7%
IMR 4166 Enduron<<locked>>88%47,688 psi81%2723 fps95.7%
IMR 4451 Enduron<<locked>>88%45,527 psi78%2707 fps95%
IMR 4831<<locked>>90%35,215 psi60%2559 fps95.1%
IMR 4895<<locked>>80%41,727 psi71%2687 fps98.3%
IMR 8208 XBR<<locked>>80%47,065 psi80%2733 fps99.7%
Lovex D073.6<<locked>>80%44,324 psi75%2707 fps100%
Lovex S060<<locked>>80%44,947 psi77%2664 fps98.8%
Lovex S062<<locked>>80%40,132 psi68%2612 fps98.9%
Lovex S065<<locked>>86%39,813 psi68%2598 fps95%
Lovex S070<<locked>>92%45,629 psi78%2730 fps95.5%
Norma 201<<locked>>80%44,164 psi75%2680 fps99.5%
Norma 202<<locked>>80%44,512 psi76%2690 fps100%
Norma 203B<<locked>>80%40,103 psi68%2644 fps97.9%
Norma URP<<locked>>86%35,766 psi61%2589 fps95%
Ramshot Big Game<<locked>>80%39,769 psi68%2657 fps97.6%
Ramshot Hunter<<locked>>92%42,627 psi73%2736 fps95.4%
Ramshot TAC<<locked>>80%47,224 psi80%2736 fps97.2%
Ramshot Wild Boar<<locked>>80%46,760 psi80%2759 fps99.1%
ReloadSwiss RS 14<<locked>>80%26,760 psi46%1647 fps100%
ReloadSwiss RS 50<<locked>>84%44,411 psi76%2694 fps95.5%
ReloadSwiss RS 52<<locked>>80%42,931 psi73%2762 fps98%
ReloadSwiss RS 6054.3 gr80%35,027 psi60%2625 fps99%
ReloadSwiss RS 62<<locked>>88%37,840 psi64%2657 fps95.6%
ReloadSwiss RS 7062 gr90%40,640 psi69%2726 fps95.7%
Rottweil R 901<<locked>>80%48,008 psi82%2723 fps100%
Rottweil R 902<<locked>>80%42,090 psi72%2631 fps99.2%
Rottweil R 903<<locked>>80%35,491 psi60%2543 fps97.3%
Rottweil R 907<<locked>>92%49,835 psi85%2782 fps95.6%
Shooters World Long Rifle<<locked>>86%39,813 psi68%2598 fps95%
Shooters World Match Rifle<<locked>>80%44,324 psi75%2707 fps100%
Shooters World Precision<<locked>>80%40,132 psi68%2612 fps98.9%
Shooters World SW4350<<locked>>92%45,629 psi78%2730 fps95.5%
SNPE Vectan SP 11<<locked>>80%36,332 psi62%2585 fps96.7%
SNPE Vectan SP 7<<locked>>80%45,484 psi77%2713 fps97.4%
SNPE Vectan SP 9<<locked>>80%43,569 psi74%2694 fps98.6%
SNPE Vectan Tubal 3000<<locked>>80%45,382 psi77%2635 fps100%
SNPE Vectan Tubal 5000<<locked>>80%37,797 psi64%2500 fps100%
SNPE Vectan Tubal 7000<<locked>>90%44,773 psi76%2651 fps95%
Somchem S335<<locked>>80%45,078 psi77%2638 fps100%
Somchem S341<<locked>>80%45,281 psi77%2710 fps98.8%
Somchem S355<<locked>>80%36,216 psi62%2546 fps97.3%
Somchem S365<<locked>>82%28,036 psi48%2418 fps95.3%
Unknown powder<<locked>>86%38,928 psi66%2648 fps95.4%
Vihtavuori N133<<locked>>80%42,699 psi73%2582 fps100%
Vihtavuori N135<<locked>>80%41,423 psi71%2615 fps100%
Vihtavuori N140<<locked>>80%41,510 psi71%2615 fps100%
Vihtavuori N150<<locked>>80%30,908 psi53%2402 fps97%
Vihtavuori N160<<locked>>84%36,434 psi62%2566 fps95.2%
Vihtavuori N530<<locked>>80%49,676 psi85%2789 fps99.9%
Vihtavuori N540<<locked>>80%41,263 psi70%2635 fps100%
Vihtavuori N550<<locked>>84%36,999 psi63%2608 fps95.3%
Vihtavuori N555<<locked>>92%33,185 psi56%2569 fps95%
Winchester 6.5 StaBALL<<locked>>80%30,705 psi52%2402 fps95.2%
Winchester 760<<locked>>88%44,715 psi76%2772 fps95%
Winchester StaBALL HD<<locked>>96%31,169 psi53%2572 fps95.5%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 107 powders for .30 R Blaser loaded with the .308 | 155gr | Sierra MatchKing. Alliant Reloder-17 delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,795 fps to 2,972 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .30 R Blaser with the .308 | 155gr | Sierra MatchKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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