Load data for 7 mm-08 Rem. + .284 | 140gr | Barnes MRX BT

7 mm-08 Rem. cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:140 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.035"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:55 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:11.5

Load data in caliber 7 mm-08 Rem. with .284 | 140gr | Barnes MRX BT bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>90%54,085 psi90%2684 fps100%
Accurate 2460<<locked>>86%52,620 psi87%2710 fps100%
Accurate 2495<<locked>>96%54,360 psi90%2743 fps100%
Accurate 2520<<locked>>90%54,056 psi90%2766 fps100%
Accurate 4064<<locked>>98%53,766 psi89%2776 fps100%
Accurate 4350ᴾ<<locked>>100%42,670 psi71%2664 fps96.3%
Accurate LT-30<<locked>>82%51,416 psi85%2595 fps100%
Accurate LT-32<<locked>>82%51,837 psi86%2615 fps100%
ADI AR 2206H<<locked>>92%53,171 psi88%2769 fps99.2%
ADI AR 2208<<locked>>98%54,273 psi90%2762 fps98.9%
ADI AR 2219<<locked>>82%51,329 psi85%2703 fps100%
ADI Benchmark 8208<<locked>>90%52,562 psi87%2726 fps99.7%
Alliant AR-Comp<<locked>>90%51,880 psi86%2713 fps100%
Alliant Power Pro 1200-R<<locked>>86%54,143 psi90%2831 fps99.7%
Alliant Power Pro 2000-MR<<locked>>94%52,678 psi88%2867 fps98.7%
Alliant Reloder- TS 15.5<<locked>>98%53,330 psi89%2785 fps99.7%
Alliant Reloder-10x<<locked>>86%54,027 psi90%2694 fps100%
Alliant Reloder-15<<locked>>96%54,230 psi90%2805 fps99.1%
Alliant Reloder-16ᴾ<<locked>>100%43,656 psi73%2680 fps96.6%
Alliant Reloder-17ᴾ<<locked>>100%50,357 psi84%2835 fps99.4%
Baschieri & Pellagri 106<<locked>>84%53,548 psi89%2635 fps100%
Baschieri & Pellagri 107<<locked>>92%52,968 psi88%2779 fps98.5%
Bofors RP3<<locked>>98%53,185 psi88%2792 fps99.7%
Hodgdon Benchmark<<locked>>88%51,938 psi86%2674 fps99.9%
Hodgdon BL-C2<<locked>>90%51,082 psi85%2753 fps99.9%
Hodgdon CFE223<<locked>>88%53,142 psi88%2848 fps99%
Hodgdon H322<<locked>>86%53,301 psi89%2733 fps100%
Hodgdon H335<<locked>>84%50,821 psi84%2707 fps100%
Hodgdon H380<<locked>>96%51,634 psi86%2753 fps97.6%
Hodgdon H4895<<locked>>92%53,606 psi89%2779 fps99.6%
Hodgdon Hybrid 100Vᴾ<<locked>>100%39,682 psi66%2569 fps97.2%
Hodgdon LEVERevolution<<locked>>94%52,011 psi86%2805 fps99.7%
Hodgdon TrailBossᴾ<<locked>>100%34,142 psi57%1650 fps100%
Hodgdon VARGET<<locked>>92%51,982 psi86%2736 fps99.4%
IMR 3031<<locked>>92%52,895 psi88%2772 fps100%
IMR 4064<<locked>>96%53,548 psi89%2746 fps99%
IMR 4198<<locked>>84%51,895 psi86%2618 fps100%
IMR 4831ᴾ<<locked>>100%41,408 psi69%2621 fps96.1%
IMR 4895<<locked>>94%52,040 psi86%2785 fps99.2%
IMR 8208 XBR<<locked>>90%52,562 psi87%2726 fps99.7%
Lovex D073.5<<locked>>86%52,359 psi87%2713 fps100%
Lovex D073.6<<locked>>92%51,721 psi86%2743 fps100%
Lovex S060<<locked>>92%53,737 psi89%2703 fps99.3%
Lovex S062<<locked>>96%52,765 psi88%2743 fps99.8%
Lovex S065ᴾ<<locked>>100%48,762 psi81%2677 fps96.1%
Norma 200<<locked>>82%53,751 psi89%2664 fps100%
Norma 201<<locked>>92%51,706 psi86%2713 fps99.7%
Norma 202<<locked>>92%52,417 psi87%2730 fps100%
Norma 203B<<locked>>96%53,258 psi88%2792 fps99.3%
Norma URPᴾ<<locked>>100%43,555 psi72%2671 fps96.4%
Ramshot Big Game<<locked>>96%53,592 psi89%2815 fps99.2%
Ramshot TAC<<locked>>90%53,185 psi88%2736 fps97.3%
Ramshot Wild Boar<<locked>>90%52,025 psi86%2756 fps99.1%
Ramshot X-Terminator<<locked>>88%54,244 psi90%2733 fps99.2%
ReloadSwiss RS 14ᴾ<<locked>>100%34,389 psi57%1690 fps100%
ReloadSwiss RS 40<<locked>>86%52,417 psi87%2717 fps100%
ReloadSwiss RS 50<<locked>>96%52,576 psi87%2736 fps96.2%
ReloadSwiss RS 52<<locked>>94%53,751 psi89%2864 fps99%
ReloadSwiss RS 60ᴾ<<locked>>100%53,896 psi90%2900 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%42,844 psi71%2684 fps95.9%
Rottweil R 901<<locked>>90%52,924 psi88%2707 fps100%
Rottweil R 902<<locked>>94%52,127 psi87%2713 fps99.7%
Rottweil R 903ᴾ<<locked>>100%53,098 psi88%2782 fps99.6%
Shooters World Long Rifleᴾ<<locked>>100%48,762 psi81%2677 fps96.1%
Shooters World Match Rifle<<locked>>92%51,721 psi86%2743 fps100%
Shooters World Precision<<locked>>96%52,765 psi88%2743 fps99.8%
Shooters World Tactical Rifle<<locked>>84%52,373 psi87%2687 fps99.6%
SNPE Vectan SP 10<<locked>>82%51,677 psi86%2713 fps100%
SNPE Vectan SP 11<<locked>>98%51,851 psi86%2795 fps99.1%
SNPE Vectan SP 3<<locked>>84%52,069 psi87%2674 fps100%
SNPE Vectan SP 7<<locked>>90%50,908 psi85%2710 fps97.4%
SNPE Vectan SP 9<<locked>>92%51,547 psi86%2736 fps99%
SNPE Vectan Tubal 3000<<locked>>92%54,288 psi90%2671 fps100%
SNPE Vectan Tubal 5000<<locked>>98%53,780 psi89%2667 fps100%
Somchem S321<<locked>>88%53,809 psi89%2766 fps99.9%
Somchem S335<<locked>>92%53,040 psi88%2667 fps100%
Somchem S341<<locked>>92%54,172 psi90%2762 fps99.2%
Somchem S355ᴾ<<locked>>100%53,809 psi89%2782 fps99.5%
Somchem S365ᴾ<<locked>>100%38,508 psi64%2615 fps98.4%
Vihtavuori N130<<locked>>88%54,012 psi90%2641 fps100%
Vihtavuori N133<<locked>>92%54,230 psi90%2661 fps100%
Vihtavuori N135<<locked>>94%50,952 psi85%2687 fps100%
Vihtavuori N140<<locked>>94%52,591 psi87%2703 fps100%
Vihtavuori N150ᴾ<<locked>>100%52,170 psi87%2720 fps99.9%
Vihtavuori N160ᴾ<<locked>>100%45,774 psi76%2671 fps96.8%
Vihtavuori N530<<locked>>90%53,374 psi89%2730 fps99.8%
Vihtavuori N540<<locked>>96%54,375 psi90%2749 fps100%
Vihtavuori N550ᴾ<<locked>>100%44,817 psi74%2674 fps96.4%
Winchester 6.5 StaBALLᴾ<<locked>>100%47,355 psi79%2664 fps98.9%
Winchester 748<<locked>>90%52,286 psi87%2776 fps100%
Winchester StaBALL Match<<locked>>92%51,082 psi85%2746 fps99.4%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%39,465 psi66%2461 fps100%
Accurate 2460<<locked>>80%42,772 psi71%2556 fps99.8%
Accurate 2495<<locked>>80%31,575 psi52%2359 fps99.8%
Accurate 2520<<locked>>80%37,884 psi63%2500 fps99%
Accurate 4064<<locked>>80%29,892 psi50%2339 fps98%
Accurate 4350<<locked>>98%39,972 psi66%2612 fps95.6%
Accurate LT-30<<locked>>80%48,153 psi80%2546 fps100%
Accurate LT-32<<locked>>80%48,530 psi81%2566 fps100%
ADI AR 2206H<<locked>>80%36,143 psi60%2454 fps95.7%
ADI AR 2208<<locked>>86%37,492 psi62%2464 fps95.3%
ADI AR 2219<<locked>>80%47,950 psi80%2654 fps100%
ADI Benchmark 8208<<locked>>80%38,218 psi63%2474 fps97.7%
Alliant AR-Comp<<locked>>80%37,043 psi62%2487 fps100%
Alliant Power Pro 1200-R<<locked>>80%44,106 psi73%2664 fps98.5%
Alliant Power Pro 2000-MR40.3 gr86%39,929 psi66%2625 fps95.6%
Alliant Reloder- TS 15.5<<locked>>82%31,618 psi53%2375 fps95.2%
Alliant Reloder-10x<<locked>>80%44,802 psi74%2559 fps100%
Alliant Reloder-15<<locked>>84%36,753 psi61%2490 fps95.3%
Alliant Reloder-16<<locked>>98%40,930 psi68%2625 fps95.7%
Alliant Reloder-17<<locked>>90%35,998 psi60%2546 fps95.9%
Baschieri & Pellagri 106<<locked>>80%47,065 psi78%2543 fps100%
Baschieri & Pellagri 107<<locked>>84%40,321 psi67%2559 fps95.7%
Bofors RP3<<locked>>82%30,777 psi51%2369 fps95%
Hodgdon Benchmark<<locked>>80%40,480 psi67%2477 fps98.6%
Hodgdon BL-C2<<locked>>80%36,071 psi60%2484 fps97.7%
Hodgdon CFE223<<locked>>80%39,842 psi66%2608 fps96.3%
Hodgdon H322<<locked>>80%43,772 psi73%2589 fps100%
Hodgdon H335<<locked>>80%44,251 psi74%2605 fps99.9%
Hodgdon H380<<locked>>90%42,206 psi70%2589 fps95.5%
Hodgdon H4895<<locked>>80%36,405 psi60%2467 fps96.5%
Hodgdon Hybrid 100V<<locked>>96%34,954 psi58%2464 fps95.6%
Hodgdon LEVERevolution36.8 gr80%32,532 psi54%2425 fps95.5%
Hodgdon TrailBoss<<locked>>80%25,425 psi42%1476 fps100%
Hodgdon VARGET<<locked>>80%35,244 psi59%2425 fps96%
IMR 3031<<locked>>80%35,143 psi58%2477 fps99.9%
IMR 4064<<locked>>84%36,753 psi61%2444 fps95.4%
IMR 4198<<locked>>80%45,992 psi76%2533 fps100%
IMR 4831<<locked>>98%38,667 psi64%2566 fps95.2%
IMR 4895<<locked>>82%35,172 psi58%2467 fps95.5%
IMR 8208 XBR<<locked>>80%38,218 psi63%2474 fps97.7%
Lovex D073.5<<locked>>80%42,525 psi71%2556 fps99.2%
Lovex D073.6<<locked>>80%34,243 psi57%2434 fps98.3%
Lovex S060<<locked>>80%37,333 psi62%2411 fps96.1%
Lovex S062<<locked>>80%31,908 psi53%2349 fps95.8%
Lovex S065<<locked>>98%45,672 psi76%2625 fps95.4%
Norma 200<<locked>>80%50,705 psi84%2625 fps100%
Norma 201<<locked>>80%35,505 psi59%2418 fps97%
Norma 202<<locked>>80%35,607 psi59%2438 fps99%
Norma 203B<<locked>>84%36,085 psi60%2477 fps95.8%
Norma URP<<locked>>98%40,712 psi68%2615 fps95.5%
Ramshot Big Game<<locked>>84%35,679 psi59%2484 fps95.2%
Ramshot TAC<<locked>>84%43,743 psi73%2575 fps95.1%
Ramshot Wild Boar<<locked>>80%37,057 psi62%2484 fps96%
Ramshot X-Terminator<<locked>>80%41,597 psi69%2523 fps97.1%
ReloadSwiss RS 14<<locked>>80%25,469 psi42%1509 fps100%
ReloadSwiss RS 40<<locked>>80%43,062 psi72%2566 fps99.5%
ReloadSwiss RS 50<<locked>>94%49,269 psi82%2684 fps95.4%
ReloadSwiss RS 5238.2 gr84%38,058 psi63%2582 fps95.7%
ReloadSwiss RS 60<<locked>>82%29,472 psi49%2382 fps95.6%
ReloadSwiss RS 62<<locked>>98%40,074 psi67%2628 fps95%
Rottweil R 901<<locked>>80%39,015 psi65%2474 fps99.4%
Rottweil R 902<<locked>>80%33,721 psi56%2372 fps96.4%
Rottweil R 903<<locked>>86%33,185 psi55%2421 fps95.6%
Shooters World Long Rifle<<locked>>98%45,672 psi76%2625 fps95.4%
Shooters World Match Rifle<<locked>>80%34,243 psi57%2434 fps98.3%
Shooters World Precision<<locked>>80%31,908 psi53%2349 fps95.8%
Shooters World Tactical Rifle<<locked>>80%45,527 psi76%2579 fps98.8%
SNPE Vectan SP 10<<locked>>80%48,109 psi80%2661 fps100%
SNPE Vectan SP 11<<locked>>86%34,795 psi58%2470 fps95%
SNPE Vectan SP 3<<locked>>80%45,759 psi76%2579 fps100%
SNPE Vectan SP 7<<locked>>84%41,408 psi69%2543 fps95.1%
SNPE Vectan SP 9<<locked>>80%34,940 psi58%2428 fps95.3%
SNPE Vectan Tubal 3000<<locked>>80%37,231 psi62%2395 fps99.2%
SNPE Vectan Tubal 5000<<locked>>80%30,385 psi50%2260 fps98.6%
Somchem S321<<locked>>80%40,872 psi68%2549 fps98.5%
Somchem S335<<locked>>80%36,767 psi61%2398 fps99.6%
Somchem S341<<locked>>80%35,737 psi59%2438 fps95.4%
Somchem S355<<locked>>86%34,490 psi57%2434 fps95.8%
Somchem S365<<locked>>92%29,762 psi49%2395 fps95%
Vihtavuori N130<<locked>>80%42,380 psi70%2474 fps100%
Vihtavuori N133<<locked>>80%37,347 psi62%2398 fps100%
Vihtavuori N135<<locked>>80%32,416 psi54%2369 fps99.9%
Vihtavuori N140<<locked>>80%33,417 psi56%2369 fps98.8%
Vihtavuori N150<<locked>>82%28,601 psi48%2270 fps95%
Vihtavuori N160<<locked>>96%40,321 psi67%2569 fps95.3%
Vihtavuori N530<<locked>>80%38,072 psi63%2470 fps97.7%
Vihtavuori N540<<locked>>80%32,184 psi53%2356 fps98.1%
Vihtavuori N550<<locked>>98%41,930 psi70%2621 fps95.7%
Winchester 6.5 StaBALL<<locked>>90%33,997 psi56%2398 fps95.2%
Winchester 748<<locked>>80%36,999 psi61%2507 fps98.3%
Winchester StaBALL Match<<locked>>80%33,779 psi56%2421 fps95.6%

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 108 powders for 7 mm-08 Rem. loaded with the .284 | 140gr | Barnes MRX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,650 fps to 2,900 fps. Accurate 4350 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for 7 mm-08 Rem. with the .284 | 140gr | Barnes MRX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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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