Load data for 7 mm Mag. Fl. H&H + .284 | 140gr | Barnes TTSX BT

7 mm Mag. Fl. H&H cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:140 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:62 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:26"
Max. allowed Pressure:47,862 psi
Recommended Twist Rate:1:10.0

Load data in caliber 7 mm Mag. Fl. H&H with .284 | 140gr | Barnes TTSX BT bullet and 60 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 62 and Alliant Reloder-16.

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: 26"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>86%42,670 psi89%2638 fps100%
Accurate 4064<<locked>>88%42,801 psi89%2677 fps100%
Accurate 4350<<locked>>96%41,684 psi87%2723 fps97.3%
ADI AR 2206H<<locked>>82%41,974 psi88%2654 fps98.4%
ADI AR 2208<<locked>>88%43,033 psi90%2657 fps98%
Alliant Power Pro 2000-MR<<locked>>84%40,799 psi85%2736 fps97.3%
Alliant Reloder- TS 15.5<<locked>>88%42,337 psi88%2680 fps99.1%
Alliant Reloder-15<<locked>>86%42,801 psi89%2694 fps98.1%
Alliant Reloder-16<<locked>>96%42,076 psi88%2740 fps97.5%
Alliant Reloder-17<<locked>>92%42,032 psi88%2772 fps98.9%
Alliant Reloder-23ᴾ<<locked>>100%33,431 psi70%2569 fps96.2%
Baschieri & Pellagri 107<<locked>>82%41,162 psi86%2657 fps97.2%
Bofors RP3<<locked>>88%41,785 psi87%2684 fps99.1%
Hodgdon BL-C2<<locked>>82%42,351 psi88%2684 fps99.6%
Hodgdon H380<<locked>>88%43,250 psi90%2690 fps97%
Hodgdon H4895<<locked>>82%42,337 psi88%2667 fps98.9%
Hodgdon Hybrid 100V<<locked>>98%40,843 psi85%2674 fps98.6%
Hodgdon LEVERevolution<<locked>>84%40,654 psi85%2687 fps99%
Hodgdon TrailBossᴾ<<locked>>100%34,679 psi72%1716 fps100%
Hodgdon VARGET<<locked>>82%40,901 psi85%2625 fps98.5%
IMR 3031<<locked>>82%41,582 psi87%2667 fps100%
IMR 4064<<locked>>86%42,511 psi89%2641 fps98.1%
IMR 4831<<locked>>98%42,786 psi89%2726 fps97.6%
IMR 4895<<locked>>84%40,944 psi86%2667 fps98.3%
Lovex D073.6<<locked>>82%40,466 psi85%2631 fps99.8%
Lovex S060<<locked>>82%42,467 psi89%2595 fps98.4%
Lovex S062<<locked>>86%42,061 psi88%2641 fps99.3%
Norma 201<<locked>>82%40,814 psi85%2605 fps99.1%
Norma 202<<locked>>82%41,365 psi86%2625 fps100%
Norma 203B<<locked>>86%42,061 psi88%2680 fps98.5%
Norma URP<<locked>>96%42,076 psi88%2726 fps97.3%
Ramshot Big Game<<locked>>86%41,858 psi87%2697 fps98.3%
ReloadSwiss RS 14ᴾ<<locked>>100%34,954 psi73%1755 fps100%
ReloadSwiss RS 52<<locked>>84%42,061 psi88%2746 fps98%
ReloadSwiss RS 60<<locked>>90%41,959 psi88%2779 fps100%
ReloadSwiss RS 62<<locked>>96%41,655 psi87%2746 fps97%
ReloadSwiss RS 70<<locked>>96%42,612 psi89%2762 fps96.3%
Rottweil R 902<<locked>>84%41,394 psi86%2608 fps99.2%
Rottweil R 903<<locked>>90%41,640 psi87%2671 fps98.9%
Shooters World Match Rifle<<locked>>82%40,466 psi85%2631 fps99.8%
Shooters World Precision<<locked>>86%42,061 psi88%2641 fps99.3%
SNPE Vectan SP 11<<locked>>88%40,611 psi85%2677 fps98.1%
SNPE Vectan SP 7<<locked>>82%41,945 psi88%2635 fps96.5%
SNPE Vectan SP 9<<locked>>82%40,596 psi85%2625 fps98.1%
SNPE Vectan Tubal 3000<<locked>>82%42,917 psi90%2572 fps100%
SNPE Vectan Tubal 5000<<locked>>88%42,685 psi89%2575 fps100%
Somchem S335<<locked>>82%42,061 psi88%2569 fps100%
Somchem S341<<locked>>82%41,930 psi88%2641 fps98.3%
Somchem S355<<locked>>90%42,844 psi90%2680 fps98.9%
Somchem S365ᴾ<<locked>>100%42,496 psi89%2779 fps99.8%
Vihtavuori N133<<locked>>82%43,120 psi90%2569 fps100%
Vihtavuori N135<<locked>>84%40,727 psi85%2595 fps100%
Vihtavuori N140<<locked>>84%41,626 psi87%2605 fps100%
Vihtavuori N150<<locked>>90%40,901 psi85%2615 fps99.4%
Vihtavuori N160<<locked>>94%41,350 psi86%2671 fps96.9%
Vihtavuori N540<<locked>>86%42,757 psi89%2644 fps100%
Vihtavuori N550<<locked>>94%40,567 psi85%2674 fps96.6%
Vihtavuori N555ᴾ<<locked>>100%35,491 psi74%2644 fps96.3%
Winchester 6.5 StaBALL<<locked>>94%42,003 psi88%2657 fps98.9%
Winchester StaBALL Match<<locked>>84%42,496 psi89%2680 fps98.9%

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

Start Load - Barrel Length: 26"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%34,824 psi73%2493 fps100%
Accurate 4064<<locked>>80%32,938 psi69%2480 fps99.5%
Accurate 4350<<locked>>92%36,129 psi75%2612 fps95.7%
ADI AR 2206H<<locked>>80%39,218 psi82%2598 fps97.8%
ADI AR 2208<<locked>>80%33,460 psi70%2451 fps95.2%
Alliant Power Pro 2000-MR<<locked>>80%35,404 psi74%2608 fps95.4%
Alliant Reloder- TS 15.5<<locked>>80%32,532 psi68%2467 fps96.8%
Alliant Reloder-15<<locked>>80%35,070 psi73%2526 fps96.1%
Alliant Reloder-1641.9 gr90%34,867 psi73%2572 fps95%
Alliant Reloder-17<<locked>>84%32,111 psi67%2533 fps95.8%
Alliant Reloder-23<<locked>>98%31,299 psi65%2510 fps95.2%
Baschieri & Pellagri 107<<locked>>80%38,232 psi80%2595 fps96.4%
Bofors RP3<<locked>>80%31,850 psi67%2467 fps96.7%
Hodgdon BL-C2<<locked>>80%39,552 psi83%2628 fps99.3%
Hodgdon H380<<locked>>84%37,652 psi79%2579 fps95.4%
Hodgdon H4895<<locked>>80%39,537 psi83%2612 fps98.3%
Hodgdon Hybrid 100V<<locked>>90%31,618 psi66%2464 fps95.8%
Hodgdon LEVERevolution<<locked>>80%35,447 psi74%2572 fps97.8%
Hodgdon TrailBoss<<locked>>80%25,759 psi54%1532 fps100%
Hodgdon VARGET<<locked>>80%38,203 psi80%2569 fps98%
IMR 3031<<locked>>80%38,638 psi81%2612 fps100%
IMR 4064<<locked>>80%35,027 psi73%2484 fps96.1%
IMR 4831<<locked>>92%35,114 psi73%2569 fps95.4%
IMR 4895<<locked>>80%35,897 psi75%2559 fps97%
Lovex D073.6<<locked>>80%37,724 psi79%2579 fps99.6%
Lovex S060<<locked>>80%40,001 psi84%2546 fps97.9%
Lovex S062<<locked>>80%34,693 psi72%2490 fps97.9%
Norma 201<<locked>>80%38,363 psi80%2556 fps98.7%
Norma 202<<locked>>80%38,580 psi81%2569 fps99.9%
Norma 203B<<locked>>80%34,476 psi72%2516 fps96.5%
Norma URP<<locked>>92%36,883 psi77%2615 fps95.7%
Ramshot Big Game<<locked>>80%33,953 psi71%2523 fps96%
ReloadSwiss RS 14<<locked>>80%25,817 psi54%1568 fps100%
ReloadSwiss RS 52<<locked>>80%36,419 psi76%2625 fps96.5%
ReloadSwiss RS 6040.1 gr80%29,965 psi63%2484 fps97.5%
ReloadSwiss RS 6246.1 gr92%36,274 psi76%2631 fps95.2%
ReloadSwiss RS 70<<locked>>94%39,842 psi83%2700 fps95.3%
Rottweil R 902<<locked>>80%36,593 psi76%2510 fps98.3%
Rottweil R 903<<locked>>80%29,747 psi62%2405 fps95.5%
Shooters World Match Rifle<<locked>>80%37,724 psi79%2579 fps99.6%
Shooters World Precision<<locked>>80%34,693 psi72%2490 fps97.9%
SNPE Vectan SP 11<<locked>>82%33,388 psi70%2516 fps95.9%
SNPE Vectan SP 7<<locked>>80%39,146 psi82%2579 fps95.7%
SNPE Vectan SP 9<<locked>>80%37,971 psi79%2569 fps97.4%
SNPE Vectan Tubal 3000<<locked>>80%40,263 psi84%2523 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%33,098 psi69%2392 fps99.7%
Somchem S335<<locked>>80%39,581 psi83%2523 fps100%
Somchem S341<<locked>>80%38,943 psi81%2582 fps97.6%
Somchem S355<<locked>>80%30,951 psi65%2418 fps95.7%
Somchem S365<<locked>>86%26,992 psi56%2395 fps95.1%
Vihtavuori N133<<locked>>80%40,480 psi85%2523 fps100%
Vihtavuori N135<<locked>>80%35,708 psi75%2503 fps100%
Vihtavuori N140<<locked>>80%36,477 psi76%2507 fps99.8%
Vihtavuori N150<<locked>>80%29,327 psi61%2359 fps96.7%
Vihtavuori N160<<locked>>90%36,289 psi76%2562 fps95.4%
Vihtavuori N540<<locked>>80%35,157 psi73%2493 fps99.5%
Vihtavuori N550<<locked>>92%37,869 psi79%2618 fps95.8%
Vihtavuori N555<<locked>>98%33,083 psi69%2585 fps95.3%
Winchester 6.5 StaBALL<<locked>>84%30,153 psi63%2385 fps95.1%
Winchester StaBALL Match<<locked>>80%37,072 psi77%2569 fps97.8%

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 60 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 140gr | Barnes TTSX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,779 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,779 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 60 of the 60 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (330 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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 62, Alliant Reloder-16 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 140gr | Barnes TTSX 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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