Load data for 7 mm Rem. Mag. + .284 | 140gr | Sierra Pro-Hunter

7 mm Rem. Mag. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
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:1:12.5

Load data in caliber 7 mm Rem. Mag. with .284 | 140gr | Sierra Pro-Hunter bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Ramshot Grand.

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>>84%53,664 psi86%2910 fps98.6%
Accurate 3100<<locked>>98%54,810 psi88%3009 fps99.7%
Accurate 4064<<locked>>82%55,564 psi89%2943 fps100%
Accurate 4350<<locked>>88%52,910 psi85%2999 fps100%
ADI AR 2208<<locked>>84%55,187 psi88%2976 fps100%
ADI AR 2209<<locked>>94%53,679 psi86%3041 fps98%
ADI AR 2213<<locked>>98%55,027 psi88%3094 fps97.1%
Alliant Reloder- TS 15.5<<locked>>84%56,014 psi90%2995 fps100%
Alliant Reloder-15<<locked>>82%56,260 psi90%3022 fps100%
Alliant Reloder-16<<locked>>90%53,766 psi86%3058 fps100%
Alliant Reloder-17<<locked>>86%54,737 psi88%3077 fps100%
Alliant Reloder-19<<locked>>94%53,301 psi85%3028 fps98%
Alliant Reloder-22<<locked>>98%54,418 psi87%3091 fps98.3%
Alliant Reloder-23ᴾ<<locked>>100%55,274 psi89%3077 fps100%
Alliant Reloder-25ᴾ<<locked>>100%47,761 psi77%3005 fps99.6%
Alliant Reloder-26<<locked>>96%55,506 psi89%3163 fps100%
Bofors RP15ᴾ<<locked>>100%53,330 psi86%3071 fps98%
Bofors RP3<<locked>>82%53,447 psi86%2959 fps100%
Bofors RP5<<locked>>98%54,418 psi87%3091 fps98.3%
Bofors RP7<<locked>>88%56,376 psi90%3005 fps99.1%
Hodgdon H380<<locked>>82%53,853 psi86%2979 fps99.9%
Hodgdon H414<<locked>>86%56,173 psi90%3071 fps99.4%
Hodgdon H4350<<locked>>90%56,260 psi90%3038 fps98.6%
Hodgdon H4831ᴾ<<locked>>100%54,302 psi87%3022 fps96.3%
Hodgdon H4831 SC<<locked>>96%54,027 psi87%3015 fps96.2%
Hodgdon Hybrid 100V<<locked>>92%54,070 psi87%2982 fps100%
Hodgdon LEVERevolution<<locked>>82%55,506 psi89%3022 fps100%
Hodgdon Retumboᴾ<<locked>>100%46,891 psi75%3045 fps97.5%
Hodgdon Superformance<<locked>>88%55,230 psi89%3087 fps99.2%
Hodgdon TrailBossᴾ<<locked>>100%36,651 psi59%1900 fps100%
Hodgdon VARGET<<locked>>82%54,563 psi87%2963 fps100%
IMR 4064<<locked>>84%53,998 psi87%2946 fps100%
IMR 4166 Enduron<<locked>>86%56,289 psi90%2982 fps99.4%
IMR 4350<<locked>>90%54,114 psi87%2982 fps98.8%
IMR 4451 Enduron<<locked>>86%54,433 psi87%2976 fps99.1%
IMR 4831<<locked>>94%54,447 psi87%3009 fps100%
IMR 4955 Enduron<<locked>>94%53,113 psi85%2966 fps96.2%
IMR 7828 SSC<<locked>>96%52,953 psi85%3074 fps96.8%
Lovex S062<<locked>>82%54,766 psi88%2946 fps100%
Lovex S065<<locked>>88%54,810 psi88%2976 fps99.8%
Lovex S070<<locked>>90%56,101 psi90%3018 fps99.5%
Lovex S071ᴾ<<locked>>100%48,733 psi78%2907 fps99.1%
Norma 203B<<locked>>82%55,564 psi89%3005 fps100%
Norma 204<<locked>>90%54,926 psi88%3035 fps98%
Norma MRP<<locked>>96%54,085 psi87%3117 fps99.2%
Norma URP<<locked>>90%55,085 psi88%3038 fps100%
Ramshot Big Game<<locked>>82%56,391 psi90%3031 fps100%
Ramshot Grand<<locked>>94%52,605 psi84%3074 fps97.1%
Ramshot Hunter<<locked>>90%54,085 psi87%3041 fps99.6%
Ramshot Magnum<<locked>>98%53,388 psi86%3054 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%37,260 psi60%1942 fps100%
ReloadSwiss RS 50<<locked>>82%53,519 psi86%2959 fps99.4%
ReloadSwiss RS 60<<locked>>84%54,317 psi87%3071 fps100%
ReloadSwiss RS 62<<locked>>88%52,678 psi84%3018 fps99.9%
ReloadSwiss RS 70<<locked>>90%54,882 psi88%3107 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%46,992 psi75%3038 fps98.5%
Rottweil R 903<<locked>>84%53,809 psi86%2959 fps100%
Rottweil R 904<<locked>>94%55,419 psi89%3015 fps97.3%
Rottweil R 905<<locked>>96%56,217 psi90%3077 fps98.6%
Rottweil R 907<<locked>>88%56,376 psi90%3005 fps99.1%
Shooters World Long Rifle<<locked>>88%54,810 psi88%2976 fps99.8%
Shooters World Precision<<locked>>82%54,766 psi88%2946 fps100%
Shooters World SW4350<<locked>>90%56,101 psi90%3018 fps99.5%
SNPE Vectan SP 11<<locked>>84%55,143 psi88%3015 fps100%
SNPE Vectan Tubal 5000<<locked>>84%54,273 psi87%2841 fps100%
SNPE Vectan Tubal 7000<<locked>>88%54,085 psi87%2920 fps99.1%
SNPE Vectan Tubal 8000<<locked>>96%55,753 psi89%3071 fps98.5%
Somchem S355<<locked>>84%53,548 psi86%2953 fps100%
Somchem S361<<locked>>92%53,505 psi86%2946 fps96.1%
Somchem S365<<locked>>92%55,013 psi88%3045 fps100%
Somchem S385<<locked>>94%53,200 psi85%2992 fps98.7%
Unknown powder<<locked>>88%55,579 psi89%3041 fps100%
Vihtavuori N150<<locked>>90%55,201 psi89%2936 fps100%
Vihtavuori N160<<locked>>88%56,043 psi90%3012 fps100%
Vihtavuori N165ᴾ<<locked>>100%54,114 psi87%2992 fps98.5%
Vihtavuori N540<<locked>>82%56,275 psi90%2949 fps100%
Vihtavuori N550<<locked>>88%56,376 psi90%3058 fps100%
Vihtavuori N555<<locked>>96%54,172 psi87%3051 fps100%
Vihtavuori N560<<locked>>98%54,752 psi88%3117 fps96.7%
Winchester 6.5 StaBALL<<locked>>88%53,069 psi85%2940 fps100%
Winchester 760<<locked>>86%56,173 psi90%3071 fps99.4%
Winchester StaBALL HDᴾ<<locked>>100%51,358 psi82%3150 fps100%
Winchester Supreme 780<<locked>>94%54,926 psi88%3015 fps98.2%

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%46,891 psi75%2789 fps97.4%
Accurate 3100<<locked>>84%33,997 psi55%2595 fps95.2%
Accurate 4064<<locked>>80%52,069 psi83%2890 fps100%
Accurate 4350<<locked>>80%40,147 psi64%2759 fps98.7%
ADI AR 2208<<locked>>80%48,791 psi78%2867 fps99.9%
ADI AR 2209<<locked>>88%44,208 psi71%2858 fps95.7%
ADI AR 2213<<locked>>94%48,124 psi77%2966 fps95.3%
Alliant Reloder- TS 15.5<<locked>>80%49,516 psi79%2890 fps100%
Alliant Reloder-15<<locked>>80%52,779 psi85%2966 fps100%
Alliant Reloder-16<<locked>>80%38,711 psi62%2766 fps98.8%
Alliant Reloder-17<<locked>>80%44,208 psi71%2894 fps100%
Alliant Reloder-19<<locked>>88%43,859 psi70%2848 fps95.7%
Alliant Reloder-22<<locked>>90%41,611 psi67%2844 fps95.1%
Alliant Reloder-23<<locked>>80%28,645 psi46%2507 fps96.7%
Alliant Reloder-25<<locked>>88%32,518 psi52%2635 fps95.1%
Alliant Reloder-2660.2 gr80%30,734 psi49%2621 fps95.1%
Bofors RP15<<locked>>94%43,859 psi70%2890 fps95.7%
Bofors RP3<<locked>>80%50,082 psi80%2907 fps100%
Bofors RP5<<locked>>90%41,611 psi67%2844 fps95.1%
Bofors RP7<<locked>>80%43,845 psi70%2772 fps96.8%
Hodgdon H380<<locked>>80%50,241 psi81%2917 fps99.7%
Hodgdon H414<<locked>>80%45,571 psi73%2881 fps97.8%
Hodgdon H4350<<locked>>80%41,191 psi66%2749 fps95.2%
Hodgdon H4831<<locked>>98%50,995 psi82%2966 fps95.5%
Hodgdon H4831 SC<<locked>>94%50,502 psi81%2956 fps95.3%
Hodgdon Hybrid 100V<<locked>>80%36,434 psi58%2654 fps99.2%
Hodgdon LEVERevolution<<locked>>80%51,779 psi83%2963 fps100%
Hodgdon Retumbo<<locked>>96%41,147 psi66%2907 fps95.4%
Hodgdon Superformance<<locked>>80%41,046 psi66%2818 fps96.3%
Hodgdon TrailBoss<<locked>>80%27,441 psi44%1699 fps100%
Hodgdon VARGET<<locked>>80%51,416 psi82%2910 fps100%
IMR 4064<<locked>>80%47,877 psi77%2841 fps99.9%
IMR 4166 Enduron<<locked>>80%46,746 psi75%2812 fps98%
IMR 4350<<locked>>80%39,349 psi63%2694 fps95.5%
IMR 4451 Enduron<<locked>>80%45,078 psi72%2802 fps97.5%
IMR 4831<<locked>>80%34,853 psi56%2618 fps97.4%
IMR 4955 Enduron<<locked>>92%50,053 psi80%2910 fps95.5%
IMR 7828 SSC<<locked>>94%49,516 psi79%3005 fps95.9%
Lovex S062<<locked>>80%51,619 psi83%2897 fps100%
Lovex S065<<locked>>80%42,728 psi69%2753 fps98.2%
Lovex S070<<locked>>80%40,988 psi66%2733 fps96.8%
Lovex S071<<locked>>90%35,346 psi57%2628 fps95.8%
Norma 203B<<locked>>80%52,112 psi84%2949 fps100%
Norma 204<<locked>>84%44,628 psi72%2844 fps95.7%
Norma MRP62.8 gr86%38,058 psi61%2789 fps95.4%
Norma URP<<locked>>80%39,755 psi64%2749 fps98.5%
Ramshot Big Game<<locked>>80%52,881 psi85%2976 fps100%
Ramshot Grand67.8 gr90%45,339 psi73%2933 fps95%
Ramshot Hunter<<locked>>80%38,508 psi62%2733 fps96.7%
Ramshot Magnum<<locked>>90%39,334 psi63%2776 fps95.1%
ReloadSwiss RS 14<<locked>>80%27,847 psi45%1736 fps100%
ReloadSwiss RS 50<<locked>>80%50,270 psi81%2900 fps99%
ReloadSwiss RS 60<<locked>>80%46,934 psi75%2949 fps100%
ReloadSwiss RS 62<<locked>>80%40,001 psi64%2776 fps98.4%
ReloadSwiss RS 70<<locked>>80%38,667 psi62%2785 fps97.9%
ReloadSwiss RS 76<<locked>>94%37,956 psi61%2818 fps95.3%
Rottweil R 903<<locked>>80%47,166 psi76%2851 fps100%
Rottweil R 904<<locked>>90%48,675 psi78%2897 fps95.8%
Rottweil R 905<<locked>>88%42,975 psi69%2831 fps95.6%
Rottweil R 907<<locked>>80%43,845 psi70%2772 fps96.8%
Shooters World Long Rifle<<locked>>80%42,728 psi69%2753 fps98.2%
Shooters World Precision<<locked>>80%51,619 psi83%2897 fps100%
Shooters World SW4350<<locked>>80%40,988 psi66%2733 fps96.8%
SNPE Vectan SP 11<<locked>>80%48,312 psi77%2904 fps100%
SNPE Vectan Tubal 5000<<locked>>80%48,080 psi77%2746 fps100%
SNPE Vectan Tubal 7000<<locked>>80%41,742 psi67%2690 fps96.9%
SNPE Vectan Tubal 8000<<locked>>88%42,612 psi68%2825 fps95.5%
Somchem S355<<locked>>80%47,311 psi76%2848 fps100%
Somchem S361<<locked>>90%50,024 psi80%2884 fps95.2%
Somchem S365<<locked>>80%36,303 psi58%2707 fps99.9%
Somchem S385<<locked>>84%38,218 psi61%2694 fps95%
Unknown powder<<locked>>80%42,728 psi69%2808 fps98.7%
Vihtavuori N150<<locked>>80%40,538 psi65%2684 fps100%
Vihtavuori N160<<locked>>80%42,902 psi69%2782 fps99.1%
Vihtavuori N165<<locked>>92%41,698 psi67%2762 fps95.8%
Vihtavuori N540<<locked>>80%52,852 psi85%2900 fps100%
Vihtavuori N550<<locked>>80%43,366 psi70%2825 fps99.1%
Vihtavuori N555<<locked>>80%31,807 psi51%2589 fps96.8%
Vihtavuori N560<<locked>>96%51,256 psi82%3054 fps95.9%
Winchester 6.5 StaBALL<<locked>>80%40,292 psi65%2717 fps99.9%
Winchester 760<<locked>>80%45,571 psi73%2881 fps97.8%
Winchester StaBALL HD<<locked>>80%25,280 psi41%2470 fps95.3%
Winchester Supreme 780<<locked>>88%44,309 psi71%2822 fps95.8%

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 93 powders for 7 mm Rem. Mag. loaded with the .284 | 140gr | Sierra Pro-Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,900 fps to 3,163 fps. ADI AR 2217 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.5 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. Norma MRP, Alliant Reloder-26, Ramshot Grand rank at the top here: for 7 mm Rem. Mag. with the .284 | 140gr | Sierra Pro-Hunter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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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