Load data for .30 R Blaser + .308 | 165gr | Barnes MRX BT

.30 R Blaser cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:165 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:1:12.0

Load data in caliber .30 R Blaser with .308 | 165gr | Barnes MRX BT bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>82%50,604 psi86%2638 fps100%
Accurate 2495<<locked>>84%50,908 psi87%2703 fps100%
Accurate 2520<<locked>>84%52,547 psi89%2749 fps100%
Accurate 2700<<locked>>92%52,924 psi90%2697 fps96.3%
Accurate 4064<<locked>>90%51,967 psi88%2740 fps100%
Accurate 4350<<locked>>98%52,185 psi89%2815 fps99.3%
ADI AR 2206H<<locked>>86%53,098 psi90%2776 fps99.8%
ADI AR 2208<<locked>>90%50,937 psi87%2723 fps99.4%
ADI Benchmark 8208<<locked>>84%52,286 psi89%2730 fps100%
Alliant AR-Comp<<locked>>84%52,779 psi90%2710 fps100%
Alliant Power Pro 2000-MR<<locked>>88%52,605 psi90%2884 fps99.6%
Alliant Reloder- TS 15.5<<locked>>90%50,589 psi86%2743 fps99.9%
Alliant Reloder-15<<locked>>88%51,184 psi87%2762 fps99.5%
Alliant Reloder-16<<locked>>98%50,473 psi86%2822 fps99.4%
Alliant Reloder-17<<locked>>94%51,271 psi87%2854 fps100%
Alliant Reloder-23ᴾ<<locked>>100%38,203 psi65%2608 fps98.3%
Alliant Reloder-26ᴾ<<locked>>100%42,699 psi73%2759 fps97.5%
Baschieri & Pellagri 107<<locked>>86%52,910 psi90%2785 fps99.4%
Bofors RP3<<locked>>90%51,097 psi87%2759 fps100%
Bofors RP7<<locked>>94%51,387 psi87%2723 fps96.3%
Hodgdon Benchmark<<locked>>82%50,792 psi86%2667 fps100%
Hodgdon BL-C2<<locked>>84%51,242 psi87%2753 fps100%
Hodgdon H322<<locked>>82%52,170 psi89%2717 fps100%
Hodgdon H380<<locked>>90%52,228 psi89%2769 fps98.9%
Hodgdon H414<<locked>>92%49,617 psi84%2776 fps96.7%
Hodgdon H4895<<locked>>84%50,357 psi86%2736 fps99.8%
Hodgdon Hybrid 100Vᴾ<<locked>>100%49,937 psi85%2753 fps99.8%
Hodgdon LEVERevolution<<locked>>88%49,647 psi85%2762 fps99.9%
Hodgdon Superformance<<locked>>96%52,330 psi89%2841 fps96.8%
Hodgdon TrailBossᴾ<<locked>>100%35,230 psi60%1719 fps100%
Hodgdon VARGET<<locked>>88%50,720 psi86%2723 fps99.8%
IMR 3031<<locked>>88%51,967 psi88%2749 fps100%
IMR 4064<<locked>>92%52,736 psi90%2746 fps99.6%
IMR 4166 Enduron<<locked>>92%52,547 psi89%2717 fps97.1%
IMR 4350<<locked>>98%51,706 psi88%2746 fps96.4%
IMR 4451 Enduron<<locked>>92%50,270 psi86%2707 fps96.5%
IMR 4831ᴾ<<locked>>100%46,818 psi80%2713 fps98.6%
IMR 4895<<locked>>88%52,504 psi89%2792 fps99.8%
IMR 8208 XBR<<locked>>84%52,286 psi89%2730 fps100%
Lovex D073.6<<locked>>86%52,547 psi89%2749 fps100%
Lovex S060<<locked>>86%52,953 psi90%2710 fps99.8%
Lovex S062<<locked>>88%50,183 psi85%2707 fps100%
Lovex S065<<locked>>96%52,779 psi90%2753 fps98.4%
Lovex S070<<locked>>96%50,198 psi85%2730 fps96.9%
Norma 201<<locked>>86%51,576 psi88%2720 fps100%
Norma 202<<locked>>86%52,257 psi89%2726 fps100%
Norma 203B<<locked>>88%50,415 psi86%2749 fps99.7%
Norma URP<<locked>>98%51,445 psi88%2805 fps99.1%
Ramshot Big Game<<locked>>88%50,763 psi86%2772 fps99.6%
Ramshot Hunter<<locked>>98%50,343 psi86%2795 fps97.7%
Ramshot TAC<<locked>>84%52,446 psi89%2740 fps98.4%
Ramshot Wild Boar<<locked>>84%52,011 psi89%2759 fps99.7%
Ramshot X-Terminator<<locked>>82%52,924 psi90%2726 fps99.8%
ReloadSwiss RS 14ᴾ<<locked>>100%35,636 psi61%1759 fps100%
ReloadSwiss RS 50<<locked>>90%52,634 psi90%2749 fps97.7%
ReloadSwiss RS 52<<locked>>86%51,372 psi87%2822 fps99.5%
ReloadSwiss RS 60<<locked>>92%50,981 psi87%2858 fps100%
ReloadSwiss RS 62<<locked>>98%51,822 psi88%2831 fps99.1%
ReloadSwiss RS 70<<locked>>98%51,924 psi88%2861 fps98.9%
Rottweil R 901<<locked>>84%52,576 psi90%2707 fps100%
Rottweil R 902<<locked>>88%52,272 psi89%2723 fps100%
Rottweil R 903<<locked>>92%50,952 psi87%2749 fps99.9%
Rottweil R 907<<locked>>94%51,387 psi87%2723 fps96.3%
Shooters World Long Rifle<<locked>>96%52,779 psi90%2753 fps98.4%
Shooters World Match Rifle<<locked>>86%52,547 psi89%2749 fps100%
Shooters World Precision<<locked>>88%50,183 psi85%2707 fps100%
Shooters World SW4350<<locked>>96%50,198 psi85%2730 fps96.9%
SNPE Vectan SP 11<<locked>>92%52,794 psi90%2808 fps99.8%
SNPE Vectan SP 7<<locked>>84%50,589 psi86%2717 fps98.6%
SNPE Vectan SP 9<<locked>>86%51,532 psi88%2743 fps99.7%
SNPE Vectan Tubal 3000<<locked>>84%50,285 psi86%2625 fps100%
SNPE Vectan Tubal 5000<<locked>>90%50,299 psi86%2621 fps100%
SNPE Vectan Tubal 7000<<locked>>96%53,084 psi90%2703 fps97.2%
Somchem S335<<locked>>86%52,605 psi90%2664 fps100%
Somchem S341<<locked>>84%50,415 psi86%2713 fps99.6%
Somchem S355<<locked>>92%51,547 psi88%2749 fps99.9%
Somchem S365ᴾ<<locked>>100%49,429 psi84%2808 fps100%
Unknown powder<<locked>>96%52,475 psi89%2812 fps98.8%
Vihtavuori N130<<locked>>82%53,142 psi90%2635 fps100%
Vihtavuori N133<<locked>>84%50,575 psi86%2615 fps100%
Vihtavuori N135<<locked>>88%51,938 psi88%2690 fps100%
Vihtavuori N140<<locked>>88%52,808 psi90%2703 fps100%
Vihtavuori N150<<locked>>94%52,910 psi90%2733 fps100%
Vihtavuori N160<<locked>>96%50,459 psi86%2749 fps98.9%
Vihtavuori N530<<locked>>84%52,489 psi89%2726 fps100%
Vihtavuori N540<<locked>>88%51,140 psi87%2700 fps100%
Vihtavuori N550<<locked>>98%53,098 psi90%2808 fps99.2%
Vihtavuori N555ᴾ<<locked>>100%41,568 psi71%2680 fps98.1%
Winchester 6.5 StaBALL<<locked>>96%50,908 psi87%2733 fps99.9%
Winchester 748<<locked>>82%53,040 psi90%2782 fps100%
Winchester 760<<locked>>92%49,617 psi84%2776 fps96.7%
Winchester StaBALL HDᴾ<<locked>>100%34,011 psi58%2592 fps97.8%

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%47,442 psi81%2592 fps100%
Accurate 2495<<locked>>80%44,425 psi76%2608 fps100%
Accurate 2520<<locked>>80%45,629 psi78%2644 fps100%
Accurate 2700<<locked>>90%49,719 psi85%2644 fps95.6%
Accurate 4064<<locked>>80%37,405 psi64%2497 fps99.9%
Accurate 4350<<locked>>86%33,881 psi58%2474 fps95%
ADI AR 2206H<<locked>>80%43,700 psi74%2618 fps98.8%
ADI AR 2208<<locked>>80%37,217 psi63%2470 fps96.7%
ADI Benchmark 8208<<locked>>80%45,847 psi78%2628 fps99.7%
Alliant AR-Comp<<locked>>80%46,035 psi78%2618 fps100%
Alliant Power Pro 2000-MR<<locked>>80%39,740 psi68%2641 fps97.3%
Alliant Reloder- TS 15.5<<locked>>80%36,622 psi62%2487 fps98.1%
Alliant Reloder-15<<locked>>80%39,407 psi67%2549 fps97.5%
Alliant Reloder-16<<locked>>86%34,418 psi59%2493 fps95.1%
Alliant Reloder-1751.5 gr80%31,560 psi54%2444 fps95.8%
Alliant Reloder-23<<locked>>94%31,560 psi54%2444 fps95.7%
Alliant Reloder-26<<locked>>96%36,970 psi63%2628 fps95.4%
Baschieri & Pellagri 107<<locked>>80%42,946 psi73%2618 fps97.8%
Bofors RP3<<locked>>80%36,027 psi61%2487 fps98.1%
Bofors RP7<<locked>>92%48,182 psi82%2671 fps95.5%
Hodgdon Benchmark<<locked>>80%47,732 psi81%2621 fps100%
Hodgdon BL-C2<<locked>>80%44,599 psi76%2644 fps99.8%
Hodgdon H322<<locked>>80%48,863 psi83%2667 fps100%
Hodgdon H380<<locked>>80%37,130 psi63%2493 fps95.5%
Hodgdon H414<<locked>>90%46,238 psi79%2720 fps95.9%
Hodgdon H4895<<locked>>80%44,106 psi75%2628 fps99.2%
Hodgdon Hybrid 100V<<locked>>84%29,486 psi50%2336 fps95%
Hodgdon LEVERevolution<<locked>>80%37,811 psi64%2549 fps98.5%
Hodgdon Superformance<<locked>>94%48,762 psi83%2782 fps95.9%
Hodgdon TrailBoss<<locked>>80%26,020 psi44%1535 fps100%
Hodgdon VARGET<<locked>>80%39,233 psi67%2520 fps98.4%
IMR 3031<<locked>>80%39,972 psi68%2559 fps100%
IMR 4064<<locked>>80%36,347 psi62%2448 fps96.7%
IMR 4166 Enduron<<locked>>86%43,830 psi75%2566 fps95%
IMR 4350<<locked>>96%48,544 psi83%2697 fps95.7%
IMR 4451 Enduron<<locked>>88%44,425 psi76%2605 fps95%
IMR 4831<<locked>>90%33,765 psi57%2454 fps95%
IMR 4895<<locked>>80%40,364 psi69%2582 fps98.3%
IMR 8208 XBR<<locked>>80%45,847 psi78%2628 fps99.7%
Lovex D073.6<<locked>>80%42,685 psi73%2595 fps100%
Lovex S060<<locked>>80%43,932 psi75%2559 fps98.9%
Lovex S062<<locked>>80%38,812 psi66%2507 fps98.9%
Lovex S065<<locked>>88%40,828 psi70%2546 fps95.7%
Lovex S070<<locked>>92%44,251 psi75%2628 fps95.5%
Norma 201<<locked>>80%42,554 psi72%2569 fps99.4%
Norma 202<<locked>>80%43,062 psi73%2582 fps100%
Norma 203B<<locked>>80%38,754 psi66%2539 fps97.9%
Norma URP<<locked>>88%36,724 psi63%2533 fps95.9%
Ramshot Big Game<<locked>>80%38,392 psi65%2549 fps97.6%
Ramshot Hunter<<locked>>92%41,162 psi70%2628 fps95.3%
Ramshot TAC<<locked>>80%45,934 psi78%2631 fps97.2%
Ramshot Wild Boar<<locked>>80%45,397 psi77%2651 fps99.1%
Ramshot X-Terminator<<locked>>80%49,545 psi84%2674 fps99.5%
ReloadSwiss RS 14<<locked>>80%26,469 psi45%1575 fps100%
ReloadSwiss RS 50<<locked>>84%42,946 psi73%2585 fps95.5%
ReloadSwiss RS 52<<locked>>80%41,481 psi71%2651 fps98%
ReloadSwiss RS 6051.5 gr80%33,663 psi57%2513 fps99%
ReloadSwiss RS 62<<locked>>88%36,289 psi62%2546 fps95.5%
ReloadSwiss RS 7058.9 gr90%39,334 psi67%2618 fps95.7%
Rottweil R 901<<locked>>80%46,572 psi79%2615 fps100%
Rottweil R 902<<locked>>80%40,640 psi69%2523 fps99.2%
Rottweil R 903<<locked>>80%33,939 psi58%2431 fps97.2%
Rottweil R 907<<locked>>92%48,182 psi82%2671 fps95.5%
Shooters World Long Rifle<<locked>>88%40,828 psi70%2546 fps95.7%
Shooters World Match Rifle<<locked>>80%42,685 psi73%2595 fps100%
Shooters World Precision<<locked>>80%38,812 psi66%2507 fps98.9%
Shooters World SW4350<<locked>>92%44,251 psi75%2628 fps95.5%
SNPE Vectan SP 11<<locked>>80%35,056 psi60%2480 fps96.7%
SNPE Vectan SP 7<<locked>>80%44,019 psi75%2605 fps97.3%
SNPE Vectan SP 9<<locked>>80%42,293 psi72%2585 fps98.6%
SNPE Vectan Tubal 3000<<locked>>80%44,092 psi75%2530 fps100%
SNPE Vectan Tubal 5000<<locked>>80%36,564 psi62%2398 fps100%
SNPE Vectan Tubal 7000<<locked>>92%46,369 psi79%2598 fps95.7%
Somchem S335<<locked>>80%43,613 psi74%2530 fps100%
Somchem S341<<locked>>80%43,700 psi74%2602 fps98.8%
Somchem S355<<locked>>80%34,766 psi59%2438 fps97.2%
Somchem S365<<locked>>82%26,847 psi46%2316 fps95.2%
Unknown powder<<locked>>86%37,579 psi64%2539 fps95.3%
Vihtavuori N130<<locked>>80%49,864 psi85%2592 fps100%
Vihtavuori N133<<locked>>80%44,469 psi76%2526 fps100%
Vihtavuori N135<<locked>>80%39,958 psi68%2507 fps100%
Vihtavuori N140<<locked>>80%40,828 psi70%2520 fps100%
Vihtavuori N150<<locked>>80%33,170 psi56%2382 fps98%
Vihtavuori N160<<locked>>86%36,071 psi61%2487 fps95.5%
Vihtavuori N530<<locked>>80%45,832 psi78%2621 fps99.8%
Vihtavuori N540<<locked>>80%39,305 psi67%2507 fps99.9%
Vihtavuori N550<<locked>>86%35,360 psi60%2480 fps95%
Vihtavuori N555<<locked>>94%33,881 psi58%2516 fps95.8%
Winchester 6.5 StaBALL<<locked>>80%29,414 psi50%2300 fps95%
Winchester 748<<locked>>80%49,226 psi84%2726 fps100%
Winchester 760<<locked>>90%46,238 psi79%2720 fps95.9%
Winchester StaBALL HD<<locked>>96%29,820 psi51%2461 fps95.2%

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.

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

This overview compares 92 powders for .30 R Blaser loaded with the .308 | 165gr | Barnes MRX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,884 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for .30 R Blaser with the .308 | 165gr | Barnes MRX BT 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.

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