Load data for 7 mm Rem. Mag. + .284 | 155gr | Hammer Hunter

7 mm Rem. Mag. cartridge drawing
Hammer logo

Load Specifications

Bullet Manufacturer:Hammer
Bullet Weight:155 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 | 155gr | Hammer Hunter bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.

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 3100<<locked>>98%56,144 psi90%2887 fps100%
Accurate 4350<<locked>>88%54,302 psi87%2874 fps100%
Accurate MAGPRO<<locked>>96%54,563 psi87%2972 fps96.9%
ADI AR 2208<<locked>>84%56,275 psi90%2844 fps100%
ADI AR 2209<<locked>>94%54,984 psi88%2920 fps98.8%
ADI AR 2213<<locked>>98%56,347 psi90%2976 fps98.1%
ADI AR 2225ᴾ<<locked>>100%38,972 psi62%2697 fps97.1%
Alliant Reloder- TS 15.5<<locked>>82%53,896 psi86%2815 fps100%
Alliant Reloder-16<<locked>>90%54,882 psi88%2927 fps100%
Alliant Reloder-17<<locked>>86%56,188 psi90%2946 fps100%
Alliant Reloder-19<<locked>>94%54,389 psi87%2907 fps98.7%
Alliant Reloder-22<<locked>>98%55,811 psi89%2972 fps99.1%
Alliant Reloder-23<<locked>>98%53,084 psi85%2900 fps100%
Alliant Reloder-25ᴾ<<locked>>100%49,052 psi79%2894 fps100%
Alliant Reloder-26<<locked>>94%52,997 psi85%2982 fps100%
Bofors RP15ᴾ<<locked>>100%54,708 psi88%2953 fps98.8%
Bofors RP3<<locked>>82%54,781 psi88%2831 fps100%
Bofors RP30ᴾ<<locked>>100%44,831 psi72%2812 fps96.3%
Bofors RP5<<locked>>98%55,811 psi89%2972 fps99.1%
Bofors RP7<<locked>>86%53,983 psi87%2822 fps99.3%
Hodgdon H1000ᴾ<<locked>>100%48,486 psi78%2835 fps97.4%
Hodgdon H380<<locked>>82%54,955 psi88%2848 fps100%
Hodgdon H414<<locked>>88%56,173 psi90%2927 fps99.7%
Hodgdon H4350<<locked>>86%55,695 psi89%2884 fps99.1%
Hodgdon H4831<<locked>>94%52,707 psi85%2858 fps96.8%
Hodgdon H4831 SC<<locked>>96%55,419 psi89%2904 fps97.3%
Hodgdon Hybrid 100V<<locked>>92%55,274 psi89%2851 fps100%
Hodgdon Retumboᴾ<<locked>>100%48,022 psi77%2940 fps98.6%
Hodgdon Superformance<<locked>>86%52,446 psi84%2900 fps99.3%
Hodgdon TrailBossᴾ<<locked>>100%36,666 psi59%1788 fps100%
IMR 4064<<locked>>82%55,666 psi89%2822 fps100%
IMR 4350<<locked>>90%55,216 psi89%2858 fps99.4%
IMR 4451 Enduron<<locked>>86%55,593 psi89%2851 fps99.6%
IMR 4831<<locked>>90%54,621 psi88%2864 fps100%
IMR 4955 Enduron<<locked>>94%54,259 psi87%2848 fps97.2%
IMR 7828 SSC<<locked>>98%54,012 psi87%2953 fps97.8%
Lovex S062<<locked>>82%55,970 psi90%2815 fps100%
Lovex S065<<locked>>88%55,811 psi89%2844 fps100%
Lovex S070<<locked>>88%53,780 psi86%2838 fps99.6%
Lovex S071ᴾ<<locked>>100%49,951 psi80%2792 fps99.6%
Norma 204<<locked>>90%55,869 psi90%2910 fps98.8%
Norma MRP<<locked>>96%55,492 psi89%2995 fps99.7%
Norma URP<<locked>>90%56,275 psi90%2907 fps100%
Ramshot Grand<<locked>>98%54,563 psi87%2972 fps98.2%
Ramshot Hunter<<locked>>90%55,071 psi88%2913 fps99.9%
Ramshot Magnumᴾ<<locked>>100%52,460 psi84%2904 fps99.2%
ReloadSwiss RS 14ᴾ<<locked>>100%37,550 psi60%1831 fps100%
ReloadSwiss RS 50<<locked>>82%54,723 psi88%2835 fps99.8%
ReloadSwiss RS 60<<locked>>84%55,550 psi89%2936 fps100%
ReloadSwiss RS 62<<locked>>88%54,230 psi87%2897 fps100%
ReloadSwiss RS 70<<locked>>90%56,246 psi90%2979 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%48,254 psi77%2936 fps99.4%
Rottweil R 903<<locked>>84%54,926 psi88%2828 fps100%
Rottweil R 904<<locked>>92%53,185 psi85%2838 fps97.6%
Rottweil R 905<<locked>>94%53,925 psi86%2897 fps98.8%
Rottweil R 907<<locked>>86%53,983 psi87%2822 fps99.3%
Shooters World Long Rifle<<locked>>88%55,811 psi89%2844 fps100%
Shooters World Precision<<locked>>82%55,970 psi90%2815 fps100%
Shooters World SW4350<<locked>>88%53,780 psi86%2838 fps99.6%
SNPE Vectan SP 11<<locked>>84%56,318 psi90%2884 fps100%
SNPE Vectan Tubal 5000<<locked>>84%55,405 psi89%2707 fps100%
SNPE Vectan Tubal 7000<<locked>>88%55,303 psi89%2799 fps99.6%
SNPE Vectan Tubal 8000<<locked>>94%53,505 psi86%2894 fps98.7%
Somchem S355<<locked>>84%54,723 psi88%2822 fps100%
Somchem S361<<locked>>92%54,607 psi88%2831 fps97.1%
Somchem S365<<locked>>92%56,304 psi90%2913 fps100%
Somchem S385<<locked>>94%54,404 psi87%2874 fps99.3%
Vihtavuori N150<<locked>>86%55,956 psi90%2795 fps100%
Vihtavuori N160<<locked>>88%54,868 psi88%2851 fps100%
Vihtavuori N165<<locked>>98%53,809 psi86%2851 fps99%
Vihtavuori N550<<locked>>88%53,838 psi86%2854 fps100%
Vihtavuori N555<<locked>>96%55,434 psi89%2923 fps100%
Vihtavuori N560<<locked>>96%55,506 psi89%2989 fps97.7%
Vihtavuori N565ᴾ<<locked>>100%51,213 psi82%2900 fps97%
Winchester 6.5 StaBALL<<locked>>88%54,244 psi87%2815 fps100%
Winchester 760<<locked>>88%56,173 psi90%2927 fps99.7%
Winchester StaBALL HDᴾ<<locked>>100%53,113 psi85%3028 fps100%
Winchester Supreme 780<<locked>>96%54,360 psi87%2867 fps98.7%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>82%32,706 psi52%2444 fps95.8%
Accurate 4350<<locked>>80%41,350 psi66%2651 fps99.4%
Accurate MAGPRO<<locked>>92%47,427 psi76%2848 fps95.1%
ADI AR 2208<<locked>>80%49,705 psi80%2740 fps100%
ADI AR 2209<<locked>>84%39,610 psi64%2631 fps95.2%
ADI AR 2213<<locked>>92%46,108 psi74%2795 fps95.8%
ADI AR 2225<<locked>>96%34,272 psi55%2572 fps95%
Alliant Reloder- TS 15.5<<locked>>80%50,589 psi81%2762 fps100%
Alliant Reloder-16<<locked>>80%39,798 psi64%2657 fps99.5%
Alliant Reloder-17<<locked>>80%45,614 psi73%2779 fps100%
Alliant Reloder-19<<locked>>84%39,450 psi63%2625 fps95.3%
Alliant Reloder-22<<locked>>88%39,929 psi64%2677 fps95.6%
Alliant Reloder-23<<locked>>80%29,399 psi47%2418 fps98.1%
Alliant Reloder-25<<locked>>86%31,198 psi50%2484 fps95.6%
Alliant Reloder-2657 gr80%31,560 psi51%2533 fps96.7%
Bofors RP15<<locked>>90%39,407 psi63%2664 fps95.2%
Bofors RP3<<locked>>80%51,140 psi82%2776 fps100%
Bofors RP30<<locked>>98%41,989 psi67%2753 fps95.4%
Bofors RP5<<locked>>88%39,929 psi64%2677 fps95.6%
Bofors RP7<<locked>>80%44,759 psi72%2657 fps97.8%
Hodgdon H1000<<locked>>96%42,293 psi68%2710 fps95.5%
Hodgdon H380<<locked>>80%51,372 psi82%2792 fps100%
Hodgdon H414<<locked>>80%42,960 psi69%2694 fps97.9%
Hodgdon H4350<<locked>>80%45,745 psi73%2713 fps97.4%
Hodgdon H4831<<locked>>90%46,050 psi74%2740 fps95.1%
Hodgdon H4831 SC<<locked>>92%48,399 psi78%2782 fps95.7%
Hodgdon Hybrid 100V<<locked>>80%37,333 psi60%2546 fps99.7%
Hodgdon Retumbo<<locked>>94%39,465 psi63%2746 fps96%
Hodgdon Superformance<<locked>>80%42,003 psi67%2710 fps97.4%
Hodgdon TrailBoss<<locked>>80%27,543 psi44%1598 fps100%
IMR 4064<<locked>>80%52,315 psi84%2772 fps100%
IMR 4350<<locked>>80%40,306 psi65%2589 fps96.7%
IMR 4451 Enduron<<locked>>80%46,006 psi74%2684 fps98.4%
IMR 4831<<locked>>80%39,479 psi63%2598 fps99.2%
IMR 4955 Enduron<<locked>>88%44,875 psi72%2680 fps95%
IMR 7828 SSC<<locked>>92%44,150 psi71%2766 fps95.3%
Lovex S062<<locked>>80%52,634 psi84%2766 fps100%
Lovex S065<<locked>>80%43,656 psi70%2638 fps99%
Lovex S070<<locked>>80%41,974 psi67%2625 fps97.9%
Lovex S071<<locked>>86%31,879 psi51%2421 fps95.4%
Norma 204<<locked>>80%39,914 psi64%2615 fps95.2%
Norma MRP58.1 gr84%36,419 psi58%2625 fps95.9%
Norma URP<<locked>>80%40,785 psi65%2641 fps99.3%
Ramshot Grand<<locked>>92%43,830 psi70%2776 fps95.6%
Ramshot Hunter<<locked>>80%39,595 psi63%2631 fps97.9%
Ramshot Magnum<<locked>>90%36,419 psi58%2589 fps95.1%
ReloadSwiss RS 14<<locked>>80%28,021 psi45%1634 fps100%
ReloadSwiss RS 50<<locked>>80%51,256 psi82%2779 fps99.5%
ReloadSwiss RS 60<<locked>>80%48,414 psi78%2828 fps100%
ReloadSwiss RS 62<<locked>>80%41,089 psi66%2667 fps99.2%
ReloadSwiss RS 70<<locked>>80%39,494 psi63%2677 fps98.9%
ReloadSwiss RS 76<<locked>>92%36,347 psi58%2661 fps95.9%
Rottweil R 903<<locked>>80%48,312 psi77%2726 fps100%
Rottweil R 904<<locked>>86%43,758 psi70%2667 fps95.3%
Rottweil R 905<<locked>>84%38,682 psi62%2608 fps95.2%
Rottweil R 907<<locked>>80%44,759 psi72%2657 fps97.8%
Shooters World Long Rifle<<locked>>80%43,656 psi70%2638 fps99%
Shooters World Precision<<locked>>80%52,634 psi84%2766 fps100%
Shooters World SW4350<<locked>>80%41,974 psi67%2625 fps97.9%
SNPE Vectan SP 11<<locked>>80%49,487 psi79%2779 fps100%
SNPE Vectan Tubal 5000<<locked>>80%49,037 psi79%2618 fps100%
SNPE Vectan Tubal 7000<<locked>>80%42,801 psi69%2585 fps97.9%
SNPE Vectan Tubal 8000<<locked>>84%38,334 psi61%2605 fps95.1%
Somchem S355<<locked>>80%48,298 psi77%2720 fps100%
Somchem S361<<locked>>88%47,892 psi77%2717 fps95.6%
Somchem S365<<locked>>80%37,463 psi60%2598 fps100%
Somchem S385<<locked>>82%36,825 psi59%2539 fps95.5%
Vihtavuori N150<<locked>>80%46,253 psi74%2651 fps100%
Vihtavuori N160<<locked>>80%42,264 psi68%2638 fps99.5%
Vihtavuori N165<<locked>>88%38,783 psi62%2575 fps95.8%
Vihtavuori N550<<locked>>80%41,553 psi67%2638 fps99.3%
Vihtavuori N555<<locked>>80%32,750 psi53%2493 fps98.1%
Vihtavuori N56062.3 gr90%45,266 psi73%2802 fps95.2%
Vihtavuori N565<<locked>>96%44,730 psi72%2779 fps95.4%
Winchester 6.5 StaBALL<<locked>>80%41,176 psi66%2605 fps100%
Winchester 760<<locked>>80%43,163 psi69%2697 fps98%
Winchester StaBALL HD<<locked>>80%26,063 psi42%2405 fps97.5%
Winchester Supreme 780<<locked>>88%41,263 psi66%2635 fps95.9%

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 78 powders for 7 mm Rem. Mag. loaded with the .284 | 155gr | Hammer Hunter. Winchester StaBALL HD delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,028 fps. ADI AR 2225 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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 Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Rem. Mag. with the .284 | 155gr | Hammer Hunter 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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