Load data for 7 mm Rem. Mag. + .284 | 140gr | NorthFork Bonded Core

7 mm Rem. Mag. cartridge drawing
North Fork logo

Load Specifications

Bullet Manufacturer:North Fork
Bullet Weight:140 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:1:11.0

Load data in caliber 7 mm Rem. Mag. with .284 | 140gr | NorthFork Bonded Core bullet and 83 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 ReloadSwiss RS 70.

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 2700<<locked>>82%54,520 psi87%2930 fps98.6%
Accurate 3100<<locked>>98%53,127 psi85%2979 fps99.5%
Accurate 4064<<locked>>82%54,230 psi87%2920 fps100%
Accurate 4350<<locked>>90%55,201 psi89%3031 fps100%
Accurate MAGPRO<<locked>>98%55,463 psi89%3123 fps96%
ADI AR 2208<<locked>>84%54,099 psi87%2953 fps100%
ADI AR 2209<<locked>>96%55,985 psi90%3074 fps98.2%
ADI AR 2213<<locked>>98%53,795 psi86%3064 fps96.6%
Alliant Reloder- TS 15.5<<locked>>84%54,868 psi88%2972 fps100%
Alliant Reloder-15<<locked>>82%55,100 psi88%2999 fps100%
Alliant Reloder-16<<locked>>92%55,811 psi89%3091 fps100%
Alliant Reloder-17<<locked>>86%53,330 psi86%3051 fps100%
Alliant Reloder-19<<locked>>96%55,506 psi89%3064 fps98.2%
Alliant Reloder-22<<locked>>98%53,040 psi85%3064 fps98%
Alliant Reloder-23ᴾ<<locked>>100%53,476 psi86%3048 fps100%
Alliant Reloder-25ᴾ<<locked>>100%46,412 psi74%2972 fps99.4%
Alliant Reloder-26<<locked>>96%53,737 psi86%3136 fps100%
Bofors RP15ᴾ<<locked>>100%51,967 psi83%3045 fps97.6%
Bofors RP3<<locked>>84%55,869 psi90%2992 fps100%
Bofors RP5<<locked>>98%53,040 psi85%3064 fps98%
Bofors RP7<<locked>>88%55,129 psi88%2976 fps98.8%
Hodgdon H380<<locked>>84%56,115 psi90%3009 fps100%
Hodgdon H414<<locked>>88%53,621 psi86%3025 fps99.1%
Hodgdon H4350<<locked>>86%53,272 psi85%2982 fps98%
Hodgdon H4831<<locked>>96%53,751 psi86%3005 fps96%
Hodgdon Hybrid 100V<<locked>>94%56,188 psi90%3009 fps100%
Hodgdon Retumboᴾ<<locked>>100%45,556 psi73%3009 fps96.9%
Hodgdon Superformance<<locked>>88%53,534 psi86%3054 fps98.9%
Hodgdon TrailBossᴾ<<locked>>100%36,637 psi59%1890 fps100%
IMR 4064<<locked>>82%53,577 psi86%2933 fps100%
IMR 4166 Enduron<<locked>>82%55,753 psi89%2966 fps99.2%
IMR 4350<<locked>>92%56,231 psi90%3012 fps99%
IMR 4451 Enduron<<locked>>86%53,214 psi85%2946 fps98.9%
IMR 4831<<locked>>92%55,463 psi89%3018 fps100%
IMR 4955 Enduron<<locked>>96%55,317 psi89%2999 fps96.5%
IMR 7828 SSCᴾ<<locked>>100%54,853 psi88%3097 fps97%
Lovex S062<<locked>>82%53,853 psi86%2930 fps100%
Lovex S065<<locked>>88%53,548 psi86%2949 fps99.6%
Lovex S070<<locked>>90%54,911 psi88%2992 fps99.3%
Lovex S071ᴾ<<locked>>100%47,340 psi76%2877 fps98.8%
Norma 203B<<locked>>82%54,404 psi87%2982 fps100%
Norma 204<<locked>>90%53,505 psi86%3005 fps97.7%
Norma MRP<<locked>>96%52,388 psi84%3084 fps98.9%
Norma URP<<locked>>90%53,795 psi86%3015 fps100%
Ramshot Big Game<<locked>>82%55,332 psi89%3012 fps100%
Ramshot Grandᴾ<<locked>>100%55,477 psi89%3120 fps97.5%
Ramshot Hunter<<locked>>92%56,231 psi90%3071 fps99.7%
Ramshot Magnumᴾ<<locked>>100%49,574 psi79%2986 fps98%
ReloadSwiss RS 14ᴾ<<locked>>100%37,246 psi60%1932 fps100%
ReloadSwiss RS 50<<locked>>84%55,999 psi90%2992 fps99.6%
ReloadSwiss RS 60<<locked>>84%52,866 psi85%3048 fps100%
ReloadSwiss RS 62<<locked>>90%54,998 psi88%3051 fps100%
ReloadSwiss RS 70<<locked>>90%53,417 psi86%3081 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%45,571 psi73%3002 fps98%
Rottweil R 902<<locked>>82%55,680 psi89%2940 fps100%
Rottweil R 903<<locked>>86%55,985 psi90%2989 fps100%
Rottweil R 904<<locked>>94%54,114 psi87%2986 fps96.8%
Rottweil R 905<<locked>>96%54,766 psi88%3048 fps98.2%
Rottweil R 907<<locked>>88%55,129 psi88%2976 fps98.8%
Shooters World Long Rifle<<locked>>88%53,548 psi86%2949 fps99.6%
Shooters World Precision<<locked>>82%53,853 psi86%2930 fps100%
Shooters World SW4350<<locked>>90%54,911 psi88%2992 fps99.3%
SNPE Vectan SP 11<<locked>>84%53,853 psi86%2992 fps100%
SNPE Vectan Tubal 5000<<locked>>84%53,156 psi85%2822 fps100%
SNPE Vectan Tubal 7000<<locked>>88%52,968 psi85%2894 fps98.9%
SNPE Vectan Tubal 8000<<locked>>96%54,331 psi87%3045 fps98.1%
Somchem S355<<locked>>86%55,927 psi90%2986 fps100%
Somchem S361<<locked>>94%55,840 psi90%2979 fps96.4%
Somchem S365<<locked>>92%53,345 psi86%3018 fps100%
Somchem S385<<locked>>96%55,390 psi89%3022 fps98.9%
Vihtavuori N135<<locked>>82%55,941 psi90%2894 fps100%
Vihtavuori N140<<locked>>82%56,275 psi90%2913 fps100%
Vihtavuori N150<<locked>>86%53,650 psi86%2907 fps100%
Vihtavuori N160<<locked>>90%55,869 psi90%3009 fps100%
Vihtavuori N165ᴾ<<locked>>100%54,679 psi88%2995 fps98.5%
Vihtavuori N540<<locked>>82%54,433 psi87%2907 fps100%
Vihtavuori N550<<locked>>90%54,940 psi88%3012 fps100%
Vihtavuori N555<<locked>>98%56,043 psi90%3077 fps100%
Vihtavuori N560<<locked>>96%52,649 psi84%3074 fps96.1%
Winchester 6.5 StaBALL<<locked>>90%55,564 psi89%2972 fps100%
Winchester 760<<locked>>88%53,621 psi86%3025 fps99.1%
Winchester StaBALL HDᴾ<<locked>>100%49,052 psi79%3114 fps100%
Winchester Supreme 780<<locked>>98%55,593 psi89%3018 fps98.1%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2700<<locked>>80%51,068 psi82%2871 fps98%
Accurate 3100<<locked>>86%35,302 psi57%2625 fps95.6%
Accurate 4064<<locked>>80%50,763 psi81%2867 fps100%
Accurate 4350<<locked>>80%39,030 psi63%2730 fps98.4%
Accurate MAGPRO<<locked>>96%51,517 psi83%3051 fps95%
ADI AR 2208<<locked>>80%47,674 psi76%2841 fps99.9%
ADI AR 2209<<locked>>88%43,120 psi69%2831 fps95.2%
ADI AR 2213<<locked>>96%50,212 psi81%2999 fps95.7%
Alliant Reloder- TS 15.5<<locked>>80%48,341 psi78%2867 fps100%
Alliant Reloder-15<<locked>>80%51,605 psi83%2940 fps100%
Alliant Reloder-16<<locked>>80%37,840 psi61%2740 fps98.5%
Alliant Reloder-17<<locked>>80%43,105 psi69%2871 fps100%
Alliant Reloder-19<<locked>>88%42,757 psi69%2822 fps95.2%
Alliant Reloder-22<<locked>>92%43,207 psi69%2874 fps95.5%
Alliant Reloder-23<<locked>>80%27,818 psi45%2480 fps96.2%
Alliant Reloder-25<<locked>>90%33,649 psi54%2664 fps95.5%
Alliant Reloder-2660.3 gr82%32,053 psi51%2661 fps95.7%
Bofors RP15<<locked>>94%42,612 psi68%2858 fps95.1%
Bofors RP3<<locked>>80%48,878 psi78%2881 fps100%
Bofors RP5<<locked>>92%43,207 psi69%2874 fps95.5%
Bofors RP7<<locked>>80%42,801 psi69%2746 fps96.4%
Hodgdon H380<<locked>>80%49,153 psi79%2894 fps99.6%
Hodgdon H414<<locked>>80%41,060 psi66%2782 fps96.5%
Hodgdon H4350<<locked>>80%43,772 psi70%2802 fps95.9%
Hodgdon H4831<<locked>>94%50,227 psi81%2943 fps95.1%
Hodgdon Hybrid 100V<<locked>>80%35,346 psi57%2628 fps98.9%
Hodgdon Retumbo<<locked>>98%42,612 psi68%2940 fps95.8%
Hodgdon Superformance<<locked>>80%40,016 psi64%2789 fps95.7%
Hodgdon TrailBoss<<locked>>80%27,238 psi44%1686 fps100%
IMR 4064<<locked>>80%50,169 psi80%2877 fps100%
IMR 4166 Enduron<<locked>>80%52,518 psi84%2910 fps98.8%
IMR 4350<<locked>>80%38,406 psi62%2667 fps95%
IMR 4451 Enduron<<locked>>80%44,280 psi71%2779 fps97.2%
IMR 4831<<locked>>80%37,536 psi60%2684 fps98.1%
IMR 4955 Enduron<<locked>>94%52,127 psi84%2943 fps95.8%
IMR 7828 SSC<<locked>>96%48,008 psi77%2972 fps95.3%
Lovex S062<<locked>>80%50,430 psi81%2874 fps100%
Lovex S065<<locked>>80%41,727 psi67%2726 fps97.9%
Lovex S070<<locked>>80%39,972 psi64%2703 fps96.4%
Lovex S071<<locked>>90%34,258 psi55%2598 fps95.2%
Norma 203B<<locked>>80%50,966 psi82%2927 fps100%
Norma 204<<locked>>84%43,468 psi70%2815 fps95.2%
Norma MRP62.8 gr88%39,624 psi64%2825 fps95.9%
Norma URP<<locked>>80%38,667 psi62%2723 fps98.2%
Ramshot Big Game<<locked>>80%51,561 psi83%2949 fps100%
Ramshot Grand<<locked>>96%48,080 psi77%2982 fps95.7%
Ramshot Hunter<<locked>>80%37,565 psi60%2707 fps96.3%
Ramshot Magnum<<locked>>94%39,842 psi64%2782 fps95.1%
ReloadSwiss RS 14<<locked>>80%27,833 psi45%1729 fps100%
ReloadSwiss RS 50<<locked>>80%49,052 psi79%2874 fps98.7%
ReloadSwiss RS 60<<locked>>80%45,759 psi73%2930 fps100%
ReloadSwiss RS 62<<locked>>80%38,769 psi62%2746 fps98.1%
ReloadSwiss RS 7058.3 gr80%37,608 psi60%2753 fps97.5%
ReloadSwiss RS 76<<locked>>96%39,624 psi64%2858 fps95.9%
Rottweil R 902<<locked>>80%52,388 psi84%2890 fps100%
Rottweil R 903<<locked>>80%45,992 psi74%2825 fps100%
Rottweil R 904<<locked>>90%47,587 psi76%2867 fps95.3%
Rottweil R 905<<locked>>88%41,814 psi67%2802 fps95.1%
Rottweil R 907<<locked>>80%42,801 psi69%2746 fps96.4%
Shooters World Long Rifle<<locked>>80%41,727 psi67%2726 fps97.9%
Shooters World Precision<<locked>>80%50,430 psi81%2874 fps100%
Shooters World SW4350<<locked>>80%39,972 psi64%2703 fps96.4%
SNPE Vectan SP 11<<locked>>80%47,181 psi76%2877 fps100%
SNPE Vectan Tubal 5000<<locked>>80%47,166 psi76%2730 fps100%
SNPE Vectan Tubal 7000<<locked>>80%40,843 psi65%2667 fps96.5%
SNPE Vectan Tubal 8000<<locked>>90%44,411 psi71%2861 fps95.9%
Somchem S355<<locked>>80%46,166 psi74%2822 fps100%
Somchem S361<<locked>>92%52,156 psi84%2917 fps95.6%
Somchem S365<<locked>>80%35,172 psi56%2677 fps99.7%
Somchem S385<<locked>>86%39,929 psi64%2730 fps95.4%
Vihtavuori N135<<locked>>80%52,779 psi85%2851 fps100%
Vihtavuori N140<<locked>>80%52,736 psi85%2861 fps100%
Vihtavuori N150<<locked>>80%44,106 psi71%2746 fps100%
Vihtavuori N160<<locked>>80%40,089 psi64%2723 fps98.5%
Vihtavuori N165<<locked>>92%41,872 psi67%2762 fps95.6%
Vihtavuori N540<<locked>>80%51,039 psi82%2854 fps100%
Vihtavuori N550<<locked>>80%39,581 psi63%2723 fps98.2%
Vihtavuori N555<<locked>>80%30,937 psi50%2562 fps96.4%
Vihtavuori N560<<locked>>94%49,197 psi79%3005 fps95.1%
Winchester 6.5 StaBALL<<locked>>80%39,262 psi63%2690 fps99.7%
Winchester 760<<locked>>80%41,060 psi66%2782 fps96.5%
Winchester StaBALL HD<<locked>>82%26,310 psi42%2510 fps96%
Winchester Supreme 780<<locked>>92%45,063 psi72%2831 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 90 powders for 7 mm Rem. Mag. loaded with the .284 | 140gr | NorthFork Bonded Core. Alliant Reloder-26 delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 1,890 fps to 3,136 fps. ADI AR 2217 gives the best case fill at 100 %, and 90 of the 90 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 140.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, ReloadSwiss RS 70 rank at the top here: for 7 mm Rem. Mag. with the .284 | 140gr | NorthFork Bonded Core they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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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