Load data for 7 mm Rem. Mag. + .284 | 145gr | Speer Hot-Cor

7 mm Rem. Mag. cartridge drawing
Speer logo

Load Specifications

Bullet Manufacturer:Speer
Bullet Weight:145 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:1:13.0

Load data in caliber 7 mm Rem. Mag. with .284 | 145gr | Speer Hot-Cor 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>>96%52,997 psi85%2936 fps99.7%
Accurate 4350<<locked>>88%54,708 psi88%2982 fps100%
Accurate MAGPRO<<locked>>96%55,274 psi89%3081 fps96.6%
ADI AR 2208<<locked>>82%53,156 psi85%2897 fps100%
ADI AR 2209<<locked>>94%55,637 psi89%3028 fps98.6%
ADI AR 2213<<locked>>96%53,069 psi85%3018 fps97.1%
ADI AR 2225ᴾ<<locked>>100%39,349 psi63%2785 fps96.7%
Alliant Reloder- TS 15.5<<locked>>82%54,056 psi87%2920 fps100%
Alliant Reloder-16<<locked>>90%55,535 psi89%3041 fps100%
Alliant Reloder-17<<locked>>84%52,939 psi85%2999 fps100%
Alliant Reloder-19<<locked>>94%54,969 psi88%3015 fps98.6%
Alliant Reloder-22<<locked>>96%52,649 psi84%3015 fps98.3%
Alliant Reloder-23<<locked>>98%53,548 psi86%3002 fps100%
Alliant Reloder-25ᴾ<<locked>>100%49,472 psi79%2992 fps99.9%
Alliant Reloder-26<<locked>>94%53,896 psi86%3091 fps100%
Bofors RP15ᴾ<<locked>>100%55,434 psi89%3064 fps98.7%
Bofors RP3<<locked>>82%55,085 psi88%2940 fps100%
Bofors RP30ᴾ<<locked>>100%45,397 psi73%2910 fps96%
Bofors RP5<<locked>>96%52,649 psi84%3015 fps98.3%
Bofors RP7<<locked>>86%54,331 psi87%2927 fps99.1%
Hodgdon H1000ᴾ<<locked>>100%48,921 psi78%2933 fps97%
Hodgdon H380<<locked>>82%55,129 psi88%2953 fps100%
Hodgdon H414<<locked>>86%53,069 psi85%2976 fps99.3%
Hodgdon H4350<<locked>>86%55,825 psi90%2989 fps98.9%
Hodgdon H4831<<locked>>94%53,359 psi86%2966 fps96.5%
Hodgdon H4831 SC<<locked>>96%55,724 psi89%3005 fps97%
Hodgdon Hybrid 100V<<locked>>92%55,825 psi90%2959 fps100%
Hodgdon Retumboᴾ<<locked>>100%48,501 psi78%3041 fps98.4%
Hodgdon Superformance<<locked>>86%53,185 psi85%3009 fps99.2%
Hodgdon TrailBossᴾ<<locked>>100%36,825 psi59%1870 fps100%
IMR 4064<<locked>>82%55,941 psi90%2930 fps100%
IMR 4350<<locked>>90%55,637 psi89%2966 fps99.3%
IMR 4451 Enduron<<locked>>86%55,854 psi90%2956 fps99.5%
IMR 4831<<locked>>90%55,114 psi88%2972 fps100%
IMR 4955 Enduron<<locked>>94%54,839 psi88%2956 fps97%
IMR 7828 SSC<<locked>>98%54,433 psi87%3058 fps97.5%
Lovex S062<<locked>>82%56,275 psi90%2923 fps100%
Lovex S065<<locked>>88%56,275 psi90%2953 fps99.9%
Lovex S070<<locked>>88%54,172 psi87%2940 fps99.5%
Lovex S071ᴾ<<locked>>100%50,488 psi81%2894 fps99.5%
Norma 204<<locked>>88%52,736 psi85%2956 fps98%
Norma MRP<<locked>>96%56,144 psi90%3104 fps99.6%
Norma URP<<locked>>88%53,258 psi85%2963 fps100%
Ramshot Grand<<locked>>98%55,056 psi88%3077 fps98%
Ramshot Hunter<<locked>>90%55,811 psi89%3022 fps99.9%
Ramshot Magnumᴾ<<locked>>100%53,156 psi85%3009 fps99%
ReloadSwiss RS 14ᴾ<<locked>>100%37,463 psi60%1913 fps100%
ReloadSwiss RS 50<<locked>>82%54,984 psi88%2940 fps99.7%
ReloadSwiss RS 60<<locked>>84%56,260 psi90%3048 fps100%
ReloadSwiss RS 62<<locked>>88%54,752 psi88%3005 fps100%
ReloadSwiss RS 70<<locked>>88%52,779 psi85%3028 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%48,907 psi78%3041 fps99.3%
Rottweil R 903<<locked>>84%55,158 psi88%2933 fps100%
Rottweil R 904<<locked>>92%53,519 psi86%2940 fps97.3%
Rottweil R 905<<locked>>94%54,360 psi87%3002 fps98.6%
Rottweil R 907<<locked>>86%54,331 psi87%2927 fps99.1%
Shooters World Long Rifle<<locked>>88%56,275 psi90%2953 fps99.9%
Shooters World Precision<<locked>>82%56,275 psi90%2923 fps100%
Shooters World SW4350<<locked>>88%54,172 psi87%2940 fps99.5%
SNPE Vectan SP 11<<locked>>82%53,287 psi85%2940 fps100%
SNPE Vectan Tubal 5000<<locked>>84%55,695 psi89%2815 fps100%
SNPE Vectan Tubal 7000<<locked>>88%55,579 psi89%2900 fps99.5%
SNPE Vectan Tubal 8000<<locked>>94%53,911 psi86%2995 fps98.5%
Somchem S355<<locked>>84%55,085 psi88%2930 fps100%
Somchem S361<<locked>>92%55,013 psi88%2930 fps96.8%
Somchem S365<<locked>>90%53,272 psi85%2969 fps100%
Somchem S385<<locked>>94%54,882 psi88%2976 fps99.2%
Vihtavuori N150<<locked>>86%56,260 psi90%2904 fps100%
Vihtavuori N160<<locked>>88%55,216 psi89%2959 fps100%
Vihtavuori N165<<locked>>98%54,317 psi87%2953 fps98.9%
Vihtavuori N550<<locked>>88%54,302 psi87%2959 fps100%
Vihtavuori N555<<locked>>96%56,086 psi90%3031 fps100%
Vihtavuori N560<<locked>>96%56,115 psi90%3094 fps97.4%
Vihtavuori N565ᴾ<<locked>>100%51,837 psi83%3002 fps96.8%
Winchester 6.5 StaBALL<<locked>>88%54,766 psi88%2920 fps100%
Winchester 760<<locked>>86%53,069 psi85%2976 fps99.3%
Winchester StaBALL HDᴾ<<locked>>100%53,911 psi86%3136 fps100%
Winchester Supreme 780<<locked>>96%55,085 psi88%2972 fps98.5%

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%32,967 psi53%2530 fps95.3%
Accurate 4350<<locked>>80%41,611 psi67%2746 fps99.2%
Accurate MAGPRO<<locked>>94%51,459 psi83%3015 fps95.7%
ADI AR 2208<<locked>>80%49,893 psi80%2841 fps100%
ADI AR 2209<<locked>>86%42,699 psi68%2785 fps95.7%
ADI AR 2213<<locked>>92%46,470 psi75%2894 fps95.4%
ADI AR 2225<<locked>>98%36,927 psi59%2723 fps95.7%
Alliant Reloder- TS 15.5<<locked>>80%50,952 psi82%2871 fps100%
Alliant Reloder-16<<locked>>80%39,972 psi64%2753 fps99.3%
Alliant Reloder-17<<locked>>80%45,803 psi73%2877 fps100%
Alliant Reloder-19<<locked>>86%42,453 psi68%2779 fps95.8%
Alliant Reloder-22<<locked>>88%40,335 psi65%2772 fps95.2%
Alliant Reloder-23<<locked>>80%29,675 psi48%2503 fps97.7%
Alliant Reloder-25<<locked>>86%31,546 psi51%2569 fps95.1%
Alliant Reloder-2660.4 gr80%31,952 psi51%2621 fps96.3%
Bofors RP15<<locked>>92%42,554 psi68%2818 fps95.8%
Bofors RP3<<locked>>80%51,590 psi83%2884 fps100%
Bofors RP30<<locked>>98%42,424 psi68%2848 fps95%
Bofors RP5<<locked>>88%40,335 psi65%2772 fps95.2%
Bofors RP7<<locked>>80%44,860 psi72%2753 fps97.5%
Hodgdon H1000<<locked>>96%42,757 psi69%2805 fps95.1%
Hodgdon H380<<locked>>80%51,735 psi83%2897 fps99.9%
Hodgdon H414<<locked>>80%43,250 psi69%2792 fps97.6%
Hodgdon H4350<<locked>>80%46,122 psi74%2812 fps97.1%
Hodgdon H4831<<locked>>92%49,719 psi80%2900 fps95.6%
Hodgdon H4831 SC<<locked>>92%48,791 psi78%2881 fps95.4%
Hodgdon Hybrid 100V<<locked>>80%37,550 psi60%2638 fps99.6%
Hodgdon Retumbo<<locked>>94%39,885 psi64%2838 fps95.5%
Hodgdon Superformance<<locked>>80%42,482 psi68%2808 fps97.1%
Hodgdon TrailBoss<<locked>>80%27,427 psi44%1670 fps100%
IMR 4064<<locked>>80%52,475 psi84%2877 fps100%
IMR 4350<<locked>>80%40,567 psi65%2684 fps96.3%
IMR 4451 Enduron<<locked>>80%46,296 psi74%2785 fps98.1%
IMR 4831<<locked>>80%39,740 psi64%2694 fps99%
IMR 4955 Enduron<<locked>>90%48,341 psi78%2838 fps95.5%
IMR 7828 SSC<<locked>>94%47,616 psi76%2930 fps95.9%
Lovex S062<<locked>>80%53,040 psi85%2874 fps100%
Lovex S065<<locked>>80%43,961 psi70%2736 fps98.8%
Lovex S070<<locked>>80%42,206 psi68%2717 fps97.5%
Lovex S071<<locked>>86%32,184 psi52%2510 fps95%
Norma 204<<locked>>82%43,091 psi69%2772 fps95.7%
Norma MRP61.6 gr84%36,927 psi59%2723 fps95.5%
Norma URP<<locked>>80%41,089 psi66%2736 fps99.1%
Ramshot Grand<<locked>>92%44,454 psi71%2877 fps95.3%
Ramshot Hunter<<locked>>80%39,842 psi64%2723 fps97.5%
Ramshot Magnum<<locked>>92%39,595 psi63%2746 fps95.8%
ReloadSwiss RS 14<<locked>>80%28,050 psi45%1713 fps100%
ReloadSwiss RS 50<<locked>>80%51,430 psi82%2877 fps99.4%
ReloadSwiss RS 60<<locked>>80%48,617 psi78%2930 fps100%
ReloadSwiss RS 62<<locked>>80%41,481 psi67%2766 fps99%
ReloadSwiss RS 70<<locked>>80%39,755 psi64%2769 fps98.6%
ReloadSwiss RS 76<<locked>>92%36,651 psi59%2749 fps95.4%
Rottweil R 903<<locked>>80%48,646 psi78%2831 fps100%
Rottweil R 904<<locked>>88%46,992 psi75%2822 fps95.8%
Rottweil R 905<<locked>>86%41,568 psi67%2759 fps95.7%
Rottweil R 907<<locked>>80%44,860 psi72%2753 fps97.5%
Shooters World Long Rifle<<locked>>80%43,961 psi70%2736 fps98.8%
Shooters World Precision<<locked>>80%53,040 psi85%2874 fps100%
Shooters World SW4350<<locked>>80%42,206 psi68%2717 fps97.5%
SNPE Vectan SP 11<<locked>>80%49,748 psi80%2884 fps100%
SNPE Vectan Tubal 5000<<locked>>80%49,139 psi79%2720 fps100%
SNPE Vectan Tubal 7000<<locked>>80%42,946 psi69%2677 fps97.6%
SNPE Vectan Tubal 8000<<locked>>86%41,191 psi66%2753 fps95.5%
Somchem S355<<locked>>80%48,704 psi78%2828 fps100%
Somchem S361<<locked>>88%48,182 psi77%2812 fps95.2%
Somchem S365<<locked>>80%37,724 psi60%2694 fps100%
Somchem S385<<locked>>82%37,057 psi59%2628 fps95%
Vihtavuori N150<<locked>>80%46,528 psi75%2753 fps100%
Vihtavuori N160<<locked>>80%42,482 psi68%2736 fps99.3%
Vihtavuori N165<<locked>>88%39,073 psi63%2667 fps95.4%
Vihtavuori N550<<locked>>80%41,872 psi67%2733 fps99.1%
Vihtavuori N555<<locked>>80%33,098 psi53%2582 fps97.7%
Vihtavuori N56067.4 gr92%48,936 psi78%2966 fps95.8%
Vihtavuori N565<<locked>>98%48,515 psi78%2940 fps95.9%
Winchester 6.5 StaBALL<<locked>>80%41,582 psi67%2700 fps100%
Winchester 760<<locked>>80%43,439 psi70%2795 fps97.7%
Winchester StaBALL HD<<locked>>80%26,223 psi42%2480 fps96.8%
Winchester Supreme 780<<locked>>88%41,597 psi67%2726 fps95.5%

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 | 145gr | Speer Hot-Cor. Winchester StaBALL HD delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,136 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 145.0 gr projectile in 0.284" calls for a 1:13.0 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 | 145gr | Speer Hot-Cor 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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