Load data for 7 mm Rem. Mag. + .284 | 175gr | Barnes X S

7 mm Rem. Mag. cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:175 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:82 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:9.5

Load data in caliber 7 mm Rem. Mag. with .284 | 175gr | Barnes X S bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Ramshot Grand, Winchester StaBALL HD and ReloadSwiss RS 76.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>92%54,230 psi87%2680 fps100%
Accurate 4350<<locked>>84%55,390 psi89%2703 fps100%
Accurate MAGPRO<<locked>>94%55,999 psi90%2818 fps97.7%
ADI AR 2209<<locked>>90%55,100 psi88%2749 fps99.5%
ADI AR 2213<<locked>>94%56,202 psi90%2805 fps99%
ADI AR 2217ᴾ<<locked>>100%50,908 psi82%2717 fps98.5%
ADI AR 2225ᴾ<<locked>>100%45,658 psi73%2690 fps99.7%
Alliant Reloder-16<<locked>>86%55,434 psi89%2746 fps100%
Alliant Reloder-17<<locked>>82%56,362 psi90%2759 fps100%
Alliant Reloder-19<<locked>>90%54,781 psi88%2740 fps99.5%
Alliant Reloder-22<<locked>>92%53,113 psi85%2753 fps99.4%
Alliant Reloder-23<<locked>>94%54,592 psi88%2733 fps100%
Alliant Reloder-25<<locked>>98%53,359 psi86%2785 fps100%
Alliant Reloder-26<<locked>>90%54,621 psi88%2818 fps100%
Baschieri & Pellagri 109<<locked>>94%54,433 psi87%2713 fps96.1%
Bofors RP15<<locked>>96%55,695 psi89%2792 fps99.6%
Bofors RP30ᴾ<<locked>>100%53,374 psi86%2792 fps99.1%
Bofors RP5<<locked>>92%53,113 psi85%2753 fps99.4%
Bofors RP7<<locked>>82%53,737 psi86%2644 fps99.8%
Hodgdon H1000ᴾ<<locked>>100%52,243 psi84%2740 fps99.1%
Hodgdon H4350<<locked>>84%53,882 psi86%2680 fps99.5%
Hodgdon H4831<<locked>>96%55,709 psi89%2740 fps98.4%
Hodgdon H4831 SC<<locked>>92%55,187 psi88%2730 fps98.3%
Hodgdon Hybrid 100V<<locked>>88%55,782 psi89%2674 fps100%
Hodgdon Retumboᴾ<<locked>>100%55,753 psi89%2907 fps100%
Hodgdon Superformance<<locked>>84%56,231 psi90%2782 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,420 psi60%1683 fps100%
IMR 4350<<locked>>86%54,940 psi88%2680 fps99.8%
IMR 4451 Enduron<<locked>>82%54,810 psi88%2664 fps99.9%
IMR 4831<<locked>>88%53,490 psi86%2664 fps100%
IMR 4955 Enduron<<locked>>90%54,070 psi87%2680 fps98.3%
IMR 7828 SSC<<locked>>92%54,491 psi87%2792 fps98.9%
IMR 8133 Enduronᴾ<<locked>>100%41,727 psi67%2608 fps96.6%
Lovex S065<<locked>>84%55,854 psi90%2664 fps100%
Lovex S070<<locked>>84%54,230 psi87%2664 fps100%
Lovex S071<<locked>>98%55,259 psi89%2694 fps100%
Norma 204<<locked>>86%55,622 psi89%2733 fps99.5%
Norma 217ᴾ<<locked>>100%41,829 psi67%2635 fps98.7%
Norma MRP<<locked>>90%52,823 psi85%2776 fps99.9%
Norma URP<<locked>>84%53,359 psi86%2680 fps100%
Ramshot Grand<<locked>>90%54,085 psi87%2795 fps99.1%
Ramshot Hunter<<locked>>86%55,361 psi89%2736 fps100%
Ramshot Magnum<<locked>>94%55,143 psi88%2776 fps99.9%
ReloadSwiss RS 14ᴾ<<locked>>100%38,290 psi61%1722 fps100%
ReloadSwiss RS 62<<locked>>84%54,882 psi88%2723 fps100%
ReloadSwiss RS 70<<locked>>86%56,159 psi90%2795 fps100%
ReloadSwiss RS 76<<locked>>98%52,794 psi85%2851 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%51,735 psi83%2805 fps97.7%
Rottweil R 904<<locked>>90%56,376 psi90%2720 fps99%
Rottweil R 905<<locked>>90%54,636 psi88%2733 fps99.6%
Rottweil R 907<<locked>>82%53,737 psi86%2644 fps99.8%
Shooters World Long Rifle<<locked>>84%55,854 psi90%2664 fps100%
Shooters World SW4350<<locked>>84%54,230 psi87%2664 fps100%
SNPE Vectan Tubal 7000<<locked>>84%54,940 psi88%2621 fps99.9%
SNPE Vectan Tubal 8000<<locked>>90%54,201 psi87%2730 fps99.5%
Somchem S361<<locked>>88%54,317 psi87%2661 fps98.1%
Somchem S365<<locked>>86%53,809 psi86%2687 fps100%
Somchem S385<<locked>>90%55,158 psi88%2707 fps99.8%
Unknown powder<<locked>>82%53,388 psi86%2680 fps100%
Vihtavuori N150<<locked>>84%53,403 psi86%2582 fps100%
Vihtavuori N160<<locked>>82%53,679 psi86%2651 fps100%
Vihtavuori N165<<locked>>96%56,028 psi90%2710 fps99.8%
Vihtavuori N550<<locked>>82%54,520 psi87%2700 fps100%
Vihtavuori N555<<locked>>90%54,041 psi87%2717 fps100%
Vihtavuori N560<<locked>>92%53,345 psi86%2782 fps98.3%
Vihtavuori N565<<locked>>96%53,084 psi85%2759 fps98.5%
Vihtavuori N568ᴾ<<locked>>100%52,692 psi84%2805 fps97.4%
Winchester 6.5 StaBALL<<locked>>84%53,795 psi86%2628 fps100%
Winchester StaBALL HD<<locked>>96%55,477 psi89%2864 fps100%
Winchester Supreme 780<<locked>>90%56,057 psi90%2720 fps99.6%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%37,376 psi60%2388 fps98.5%
Accurate 4350<<locked>>80%48,805 psi78%2605 fps100%
Accurate MAGPRO<<locked>>88%46,079 psi74%2648 fps95.4%
ADI AR 2209<<locked>>80%40,234 psi65%2484 fps96.9%
ADI AR 2213<<locked>>84%41,060 psi66%2533 fps95.8%
ADI AR 2217<<locked>>92%39,624 psi64%2497 fps95.5%
ADI AR 2225<<locked>>88%32,097 psi51%2372 fps95.8%
Alliant Reloder-16<<locked>>80%46,021 psi74%2602 fps100%
Alliant Reloder-17<<locked>>80%52,910 psi85%2710 fps100%
Alliant Reloder-19<<locked>>80%40,364 psi65%2484 fps97%
Alliant Reloder-22<<locked>>80%36,521 psi59%2438 fps95.9%
Alliant Reloder-23<<locked>>80%35,375 psi57%2405 fps100%
Alliant Reloder-25<<locked>>80%31,009 psi50%2329 fps97.3%
Alliant Reloder-26<<locked>>80%38,551 psi62%2543 fps99.7%
Baschieri & Pellagri 109<<locked>>92%51,271 psi82%2657 fps95.3%
Bofors RP15<<locked>>82%36,318 psi58%2431 fps95.7%
Bofors RP30<<locked>>88%36,622 psi59%2474 fps95.1%
Bofors RP5<<locked>>80%36,521 psi59%2438 fps95.9%
Bofors RP7<<locked>>80%50,821 psi81%2595 fps99.5%
Hodgdon H1000<<locked>>90%38,363 psi62%2474 fps95.8%
Hodgdon H4350<<locked>>80%47,950 psi77%2585 fps98.8%
Hodgdon H4831<<locked>>86%41,104 psi66%2484 fps95.1%
Hodgdon H4831 SC<<locked>>84%42,931 psi69%2520 fps95.7%
Hodgdon Hybrid 100V<<locked>>80%43,729 psi70%2493 fps100%
Hodgdon Retumbo<<locked>>84%34,200 psi55%2457 fps95.4%
Hodgdon Superformance<<locked>>80%48,921 psi78%2667 fps99.5%
Hodgdon TrailBoss<<locked>>80%28,282 psi45%1506 fps100%
IMR 4350<<locked>>80%45,905 psi74%2533 fps99%
IMR 4451 Enduron<<locked>>80%51,619 psi83%2615 fps99.8%
IMR 4831<<locked>>80%42,235 psi68%2480 fps99.9%
IMR 4955 Enduron<<locked>>80%40,089 psi64%2428 fps95%
IMR 7828 SSC<<locked>>82%39,595 psi63%2513 fps95.4%
IMR 8133 Enduron<<locked>>98%39,247 psi63%2552 fps95.7%
Lovex S065<<locked>>80%49,806 psi80%2572 fps100%
Lovex S070<<locked>>80%48,327 psi77%2569 fps99.6%
Lovex S071<<locked>>80%32,735 psi52%2280 fps97.2%
Norma 204<<locked>>80%45,977 psi74%2572 fps98.1%
Norma 217<<locked>>92%32,938 psi53%2421 fps95.7%
Norma MRP<<locked>>80%38,174 psi61%2503 fps97.9%
Norma URP<<locked>>80%47,398 psi76%2589 fps100%
Ramshot Grand55.8 gr80%38,435 psi62%2500 fps95.4%
Ramshot Hunter<<locked>>80%45,934 psi74%2585 fps99.7%
Ramshot Magnum<<locked>>80%33,837 psi54%2375 fps95.7%
ReloadSwiss RS 14<<locked>>80%28,921 psi46%1539 fps100%
ReloadSwiss RS 62<<locked>>80%48,298 psi77%2625 fps100%
ReloadSwiss RS 70<<locked>>80%46,006 psi74%2638 fps100%
ReloadSwiss RS 7657.2 gr82%31,386 psi50%2379 fps95.2%
ReloadSwiss RS 80<<locked>>94%41,974 psi67%2621 fps95.1%
Rottweil R 904<<locked>>80%41,713 psi67%2464 fps96.1%
Rottweil R 905<<locked>>80%39,929 psi64%2474 fps97.1%
Rottweil R 907<<locked>>80%50,821 psi81%2595 fps99.5%
Shooters World Long Rifle<<locked>>80%49,806 psi80%2572 fps100%
Shooters World SW4350<<locked>>80%48,327 psi77%2569 fps99.6%
SNPE Vectan Tubal 7000<<locked>>80%48,675 psi78%2526 fps99.6%
SNPE Vectan Tubal 8000<<locked>>80%39,581 psi63%2467 fps96.9%
Somchem S361<<locked>>80%42,424 psi68%2457 fps95.5%
Somchem S365<<locked>>80%44,454 psi71%2549 fps100%
Somchem S385<<locked>>80%40,785 psi65%2461 fps98%
Unknown powder<<locked>>80%50,212 psi81%2631 fps100%
Vihtavuori N150<<locked>>80%47,659 psi76%2497 fps100%
Vihtavuori N160<<locked>>80%50,473 psi81%2602 fps100%
Vihtavuori N165<<locked>>80%34,563 psi55%2323 fps95.8%
Vihtavuori N550<<locked>>80%51,111 psi82%2648 fps100%
Vihtavuori N555<<locked>>80%39,813 psi64%2477 fps99.9%
Vihtavuori N560<<locked>>84%41,423 psi66%2562 fps95.5%
Vihtavuori N565<<locked>>88%41,162 psi66%2543 fps95.7%
Vihtavuori N568<<locked>>96%46,209 psi74%2690 fps95.8%
Winchester 6.5 StaBALL<<locked>>80%47,471 psi76%2539 fps100%
Winchester StaBALL HD53.5 gr80%31,821 psi51%2444 fps100%
Winchester Supreme 780<<locked>>80%40,089 psi64%2451 fps96.9%

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 70 powders for 7 mm Rem. Mag. loaded with the .284 | 175gr | Barnes X S. Hodgdon Retumbo delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,907 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Ramshot Grand, Winchester StaBALL HD, ReloadSwiss RS 76 rank at the top here: for 7 mm Rem. Mag. with the .284 | 175gr | Barnes X S 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