Load data for 7 mm Exp. Rem. + .284 | 151gr | Warner Tool Co. Flat Line

7 mm Exp. Rem. cartridge drawing
Warner Tool Co logo

Load Specifications

Bullet Manufacturer:Warner Tool Co
Bullet Weight:151 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.54"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:67.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:22"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:8.5

Load data in caliber 7 mm Exp. Rem. with .284 | 151gr | Warner Tool Co. Flat Line bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.

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.

A valid access license is required to use the Personalized Load Calculator.

You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 22"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>82%52,852 psi90%2572 fps100%
Accurate 2495<<locked>>86%51,474 psi88%2595 fps100%
Accurate 2520<<locked>>82%52,997 psi90%2654 fps100%
Accurate 2700<<locked>>86%50,604 psi86%2585 fps95.9%
Accurate 4064<<locked>>88%51,590 psi88%2638 fps100%
Accurate 4350<<locked>>96%51,082 psi87%2710 fps99.1%
ADI AR 2206H<<locked>>84%51,750 psi88%2661 fps99.8%
ADI AR 2208<<locked>>90%53,040 psi90%2667 fps99.6%
ADI Benchmark 8208<<locked>>82%50,894 psi87%2618 fps100%
Alliant AR-Comp<<locked>>82%51,532 psi88%2598 fps100%
Alliant Power Pro 2000-MR<<locked>>86%51,082 psi87%2766 fps99.5%
Alliant Reloder- TS 15.5<<locked>>90%53,055 psi90%2687 fps100%
Alliant Reloder-15<<locked>>86%50,285 psi86%2654 fps99.4%
Alliant Reloder-16<<locked>>98%52,460 psi89%2766 fps99.6%
Alliant Reloder-17<<locked>>92%49,850 psi85%2743 fps99.9%
Alliant Reloder-23ᴾ<<locked>>100%39,929 psi68%2562 fps98.6%
Alliant Reloder-26ᴾ<<locked>>100%44,773 psi76%2717 fps97.9%
Baschieri & Pellagri 107<<locked>>84%51,387 psi87%2674 fps99.2%
Bofors RP3<<locked>>88%50,082 psi85%2651 fps99.9%
Bofors RP7<<locked>>92%50,430 psi86%2618 fps96.1%
Hodgdon Benchmark<<locked>>82%52,692 psi90%2605 fps100%
Hodgdon BL-C2<<locked>>82%49,908 psi85%2641 fps100%
Hodgdon H380<<locked>>88%50,995 psi87%2661 fps98.7%
Hodgdon H414<<locked>>94%50,372 psi86%2703 fps96.8%
Hodgdon H4895<<locked>>84%52,301 psi89%2671 fps99.9%
Hodgdon Hybrid 100Vᴾ<<locked>>100%52,243 psi89%2700 fps99.9%
Hodgdon LEVERevolution<<locked>>86%51,619 psi88%2703 fps100%
Hodgdon Superformance<<locked>>94%50,676 psi86%2733 fps96.3%
Hodgdon TrailBossᴾ<<locked>>100%35,723 psi61%1650 fps100%
Hodgdon VARGET<<locked>>84%50,314 psi86%2625 fps99.8%
IMR 3031<<locked>>84%52,460 psi89%2661 fps100%
IMR 4064<<locked>>88%52,562 psi89%2651 fps99.7%
IMR 4166 Enduron<<locked>>86%52,286 psi89%2628 fps97.1%
IMR 4350<<locked>>96%50,444 psi86%2641 fps96.1%
IMR 4451 Enduron<<locked>>92%52,243 psi89%2651 fps97%
IMR 4831<<locked>>98%51,721 psi88%2707 fps99.3%
IMR 4895<<locked>>86%51,576 psi88%2687 fps99.8%
IMR 8208 XBR<<locked>>82%50,894 psi87%2618 fps100%
Lovex D073.6<<locked>>84%51,329 psi87%2641 fps100%
Lovex S060<<locked>>84%51,648 psi88%2598 fps99.8%
Lovex S062<<locked>>88%52,417 psi89%2648 fps100%
Lovex S065<<locked>>94%51,532 psi88%2644 fps98.2%
Lovex S070<<locked>>96%52,170 psi89%2677 fps97.3%
Norma 201<<locked>>84%50,763 psi86%2615 fps100%
Norma 202<<locked>>84%51,126 psi87%2615 fps100%
Norma 203B<<locked>>88%52,692 psi90%2694 fps99.8%
Norma URP<<locked>>96%50,169 psi85%2697 fps99%
Ramshot Big Game<<locked>>88%52,953 psi90%2717 fps99.8%
Ramshot Hunter<<locked>>98%52,301 psi89%2743 fps98%
Ramshot TAC<<locked>>82%50,981 psi87%2631 fps98.2%
Ramshot Wild Boar<<locked>>82%50,618 psi86%2648 fps99.7%
ReloadSwiss RS 14ᴾ<<locked>>100%36,143 psi62%1690 fps100%
ReloadSwiss RS 50<<locked>>88%51,184 psi87%2641 fps97.5%
ReloadSwiss RS 52<<locked>>84%50,111 psi85%2710 fps99.4%
ReloadSwiss RS 60<<locked>>92%53,098 psi90%2799 fps100%
ReloadSwiss RS 62<<locked>>96%50,546 psi86%2726 fps98.9%
ReloadSwiss RS 70<<locked>>96%50,328 psi86%2749 fps98.6%
Rottweil R 901<<locked>>82%51,822 psi88%2598 fps100%
Rottweil R 902<<locked>>86%51,401 psi88%2615 fps100%
Rottweil R 903<<locked>>90%49,951 psi85%2644 fps99.9%
Rottweil R 907<<locked>>92%50,430 psi86%2618 fps96.1%
Shooters World Long Rifle<<locked>>94%51,532 psi88%2644 fps98.2%
Shooters World Match Rifle<<locked>>84%51,329 psi87%2641 fps100%
Shooters World Precision<<locked>>88%52,417 psi89%2648 fps100%
Shooters World SW4350<<locked>>96%52,170 psi89%2677 fps97.3%
SNPE Vectan SP 11<<locked>>90%51,459 psi88%2700 fps99.7%
SNPE Vectan SP 7<<locked>>84%52,953 psi90%2664 fps98.9%
SNPE Vectan SP 9<<locked>>84%50,198 psi85%2635 fps99.6%
SNPE Vectan Tubal 3000<<locked>>84%52,170 psi89%2559 fps100%
SNPE Vectan Tubal 5000<<locked>>90%52,359 psi89%2562 fps100%
SNPE Vectan Tubal 7000<<locked>>94%51,721 psi88%2602 fps97%
Somchem S335<<locked>>84%51,634 psi88%2559 fps100%
Somchem S341<<locked>>84%52,402 psi89%2654 fps99.8%
Somchem S355<<locked>>90%50,386 psi86%2641 fps99.8%
Somchem S365ᴾ<<locked>>100%51,793 psi88%2756 fps100%
Vihtavuori N133<<locked>>84%52,475 psi89%2549 fps100%
Vihtavuori N135<<locked>>86%51,140 psi87%2585 fps100%
Vihtavuori N140<<locked>>86%51,793 psi88%2598 fps100%
Vihtavuori N150<<locked>>92%51,576 psi88%2625 fps100%
Vihtavuori N160<<locked>>96%52,779 psi90%2700 fps99.2%
Vihtavuori N530<<locked>>82%51,329 psi87%2618 fps100%
Vihtavuori N540<<locked>>86%49,879 psi85%2592 fps100%
Vihtavuori N550<<locked>>96%51,895 psi88%2703 fps99%
Vihtavuori N555ᴾ<<locked>>100%43,874 psi75%2635 fps98.5%
Winchester 6.5 StaBALL<<locked>>96%52,721 psi90%2677 fps100%
Winchester 748<<locked>>82%51,184 psi87%2661 fps100%
Winchester 760<<locked>>94%50,691 psi86%2707 fps96.9%
Winchester StaBALL HDᴾ<<locked>>100%35,766 psi61%2559 fps98.4%
Winchester StaBALL Match<<locked>>84%50,096 psi85%2641 fps99.8%

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

Start Load - Barrel Length: 22"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%49,661 psi85%2530 fps100%
Accurate 2495<<locked>>80%42,438 psi72%2457 fps100%
Accurate 2520<<locked>>80%49,414 psi84%2602 fps100%
Accurate 2700<<locked>>84%47,326 psi81%2530 fps95%
Accurate 4064<<locked>>80%40,118 psi68%2454 fps100%
Accurate 4350<<locked>>86%36,260 psi62%2438 fps95.8%
ADI AR 2206H<<locked>>80%45,818 psi78%2562 fps99.2%
ADI AR 2208<<locked>>80%38,957 psi66%2418 fps97.3%
ADI Benchmark 8208<<locked>>80%47,848 psi81%2569 fps99.9%
Alliant AR-Comp<<locked>>80%48,225 psi82%2552 fps100%
Alliant Power Pro 2000-MR<<locked>>80%41,756 psi71%2592 fps97.9%
Alliant Reloder- TS 15.5<<locked>>80%38,624 psi66%2438 fps98.6%
Alliant Reloder-15<<locked>>80%41,466 psi71%2500 fps98%
Alliant Reloder-16<<locked>>86%36,158 psi62%2448 fps95.9%
Alliant Reloder-1743 gr80%33,402 psi57%2405 fps96.7%
Alliant Reloder-23<<locked>>92%31,256 psi53%2352 fps95.5%
Alliant Reloder-26<<locked>>96%38,899 psi66%2592 fps96%
Baschieri & Pellagri 107<<locked>>80%44,962 psi77%2566 fps98.3%
Bofors RP3<<locked>>80%38,261 psi65%2441 fps98.6%
Bofors RP7<<locked>>90%47,413 psi81%2569 fps95.4%
Hodgdon Benchmark<<locked>>80%49,588 psi84%2559 fps100%
Hodgdon BL-C2<<locked>>80%46,934 psi80%2592 fps100%
Hodgdon H380<<locked>>80%39,189 psi67%2444 fps96.2%
Hodgdon H414<<locked>>90%44,150 psi75%2595 fps95.3%
Hodgdon H4895<<locked>>80%46,224 psi79%2572 fps99.5%
Hodgdon Hybrid 100V<<locked>>84%31,169 psi53%2297 fps95.8%
Hodgdon LEVERevolution<<locked>>80%42,177 psi72%2543 fps99.3%
Hodgdon Superformance<<locked>>92%47,311 psi81%2671 fps95.4%
Hodgdon TrailBoss<<locked>>80%26,513 psi45%1473 fps100%
Hodgdon VARGET<<locked>>80%44,440 psi76%2526 fps99.3%
IMR 3031<<locked>>80%46,006 psi78%2566 fps100%
IMR 4064<<locked>>80%40,915 psi70%2451 fps98%
IMR 4166 Enduron<<locked>>82%46,064 psi78%2520 fps95.7%
IMR 4350<<locked>>94%47,471 psi81%2592 fps95.4%
IMR 4451 Enduron<<locked>>88%46,035 psi78%2546 fps95.5%
IMR 4831<<locked>>86%35,041 psi60%2395 fps95.5%
IMR 4895<<locked>>80%42,496 psi72%2530 fps98.7%
IMR 8208 XBR<<locked>>80%47,848 psi81%2569 fps99.9%
Lovex D073.6<<locked>>80%44,962 psi77%2539 fps100%
Lovex S060<<locked>>80%45,759 psi78%2503 fps99.2%
Lovex S062<<locked>>80%40,915 psi70%2454 fps99.3%
Lovex S065<<locked>>86%40,379 psi69%2448 fps95.6%
Lovex S070<<locked>>90%43,453 psi74%2526 fps95.2%
Norma 201<<locked>>80%44,860 psi76%2516 fps99.7%
Norma 202<<locked>>80%45,121 psi77%2520 fps100%
Norma 203B<<locked>>80%40,886 psi70%2490 fps98.4%
Norma URP<<locked>>86%36,405 psi62%2438 fps95.7%
Ramshot Big Game<<locked>>80%40,495 psi69%2500 fps98.1%
Ramshot Hunter<<locked>>90%40,393 psi69%2526 fps95%
Ramshot TAC<<locked>>80%47,761 psi81%2575 fps97.7%
Ramshot Wild Boar<<locked>>80%47,340 psi81%2595 fps99.3%
ReloadSwiss RS 14<<locked>>80%26,963 psi46%1509 fps100%
ReloadSwiss RS 50<<locked>>82%42,148 psi72%2480 fps95.3%
ReloadSwiss RS 52<<locked>>80%43,700 psi74%2598 fps98.5%
ReloadSwiss RS 6043 gr80%35,520 psi60%2470 fps99.4%
ReloadSwiss RS 62<<locked>>86%35,940 psi61%2454 fps95.3%
ReloadSwiss RS 7048 gr88%38,319 psi65%2510 fps95.2%
Rottweil R 901<<locked>>80%48,776 psi83%2552 fps100%
Rottweil R 902<<locked>>80%42,656 psi73%2467 fps99.5%
Rottweil R 903<<locked>>80%36,013 psi61%2385 fps97.8%
Rottweil R 907<<locked>>90%47,413 psi81%2569 fps95.4%
Shooters World Long Rifle<<locked>>86%40,379 psi69%2448 fps95.6%
Shooters World Match Rifle<<locked>>80%44,962 psi77%2539 fps100%
Shooters World Precision<<locked>>80%40,915 psi70%2454 fps99.3%
Shooters World SW4350<<locked>>90%43,453 psi74%2526 fps95.2%
SNPE Vectan SP 11<<locked>>80%36,970 psi63%2434 fps97.3%
SNPE Vectan SP 7<<locked>>80%46,209 psi79%2552 fps97.8%
SNPE Vectan SP 9<<locked>>80%44,164 psi75%2530 fps98.9%
SNPE Vectan Tubal 3000<<locked>>80%46,253 psi79%2470 fps100%
SNPE Vectan Tubal 5000<<locked>>80%38,580 psi66%2346 fps100%
SNPE Vectan Tubal 7000<<locked>>90%45,310 psi77%2497 fps95.5%
Somchem S335<<locked>>80%45,788 psi78%2470 fps100%
Somchem S341<<locked>>80%45,818 psi78%2549 fps99.1%
Somchem S355<<locked>>80%36,898 psi63%2395 fps97.9%
Somchem S365<<locked>>80%26,905 psi46%2231 fps95.2%
Vihtavuori N133<<locked>>80%46,630 psi79%2464 fps100%
Vihtavuori N135<<locked>>80%42,380 psi72%2454 fps100%
Vihtavuori N140<<locked>>80%42,670 psi73%2457 fps100%
Vihtavuori N150<<locked>>80%34,983 psi60%2333 fps98.5%
Vihtavuori N160<<locked>>84%35,505 psi60%2385 fps95.3%
Vihtavuori N530<<locked>>80%47,877 psi82%2562 fps99.9%
Vihtavuori N540<<locked>>80%41,263 psi70%2451 fps100%
Vihtavuori N550<<locked>>86%37,376 psi64%2438 fps95.8%
Vihtavuori N555<<locked>>92%33,750 psi57%2425 fps95.7%
Winchester 6.5 StaBALL<<locked>>80%31,038 psi53%2260 fps95.9%
Winchester 748<<locked>>80%47,747 psi81%2608 fps100%
Winchester 760<<locked>>90%44,425 psi76%2598 fps95.3%
Winchester StaBALL HD<<locked>>96%31,517 psi54%2431 fps96.2%
Winchester StaBALL Match<<locked>>80%43,758 psi74%2536 fps99.3%

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 89 powders for 7 mm Exp. Rem. loaded with the .284 | 151gr | Warner Tool Co. Flat Line. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,650 fps to 2,799 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 151.0 gr projectile in 0.284" calls for a 1:8.5 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 mm Exp. Rem. with the .284 | 151gr | Warner Tool Co. Flat Line 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.

← All load data