Load data for 7 mm Rem. Mag. + .284 | 120gr | Barnes X BT

7 mm Rem. Mag. cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:120 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:1:11.5

Load data in caliber 7 mm Rem. Mag. with .284 | 120gr | Barnes X BT bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Alliant Reloder-16 and Norma MRP.

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>>86%54,955 psi88%3104 fps97.4%
Accurate 3100ᴾ<<locked>>100%55,492 psi89%3199 fps98.9%
Accurate 3100ᴾ<<locked>>100%55,492 psi89%3199 fps98.9%
Accurate 4064<<locked>>82%54,070 psi87%3120 fps100%
Accurate 4064<<locked>>82%54,070 psi87%3120 fps100%
Accurate 4350<<locked>>90%53,824 psi86%3205 fps99.6%
Accurate 4350<<locked>>90%53,824 psi86%3205 fps99.6%
Accurate 4350<<locked>>90%53,824 psi86%3205 fps99.6%
ADI AR 2208<<locked>>86%55,985 psi90%3179 fps99.9%
ADI AR 2208<<locked>>86%55,985 psi90%3179 fps99.9%
ADI AR 2208<<locked>>86%55,985 psi90%3179 fps99.9%
ADI AR 2209<<locked>>96%54,099 psi87%3225 fps96.4%
ADI AR 2209<<locked>>96%54,099 psi87%3225 fps96.4%
ADI AR 2209<<locked>>96%54,099 psi87%3225 fps96.4%
Alliant Power Pro 2000-MR<<locked>>82%55,042 psi88%3304 fps99.9%
Alliant Reloder- TS 15.5<<locked>>84%53,737 psi86%3156 fps100%
Alliant Reloder-15<<locked>>82%53,766 psi86%3173 fps99.8%
Alliant Reloder-16<<locked>>92%53,853 psi86%3258 fps99.8%
Alliant Reloder-17<<locked>>88%54,824 psi88%3284 fps100%
Alliant Reloder-19<<locked>>96%53,403 psi86%3212 fps96.3%
Alliant Reloder-22ᴾ<<locked>>100%54,404 psi87%3278 fps96.8%
Alliant Reloder-23ᴾ<<locked>>100%51,416 psi82%3215 fps100%
Alliant Reloder-25ᴾ<<locked>>100%45,136 psi72%3117 fps97.9%
Alliant Reloder-26<<locked>>98%55,274 psi89%3363 fps99.8%
Bofors RP3<<locked>>84%54,969 psi88%3179 fps100%
Bofors RP5ᴾ<<locked>>100%54,404 psi87%3278 fps96.8%
Bofors RP7<<locked>>88%54,027 psi87%3143 fps97.4%
Hodgdon H380<<locked>>84%54,911 psi88%3182 fps99.5%
Hodgdon H414<<locked>>90%55,390 psi89%3248 fps98.2%
Hodgdon H4350<<locked>>88%54,955 psi88%3199 fps97%
Hodgdon Hybrid 100V<<locked>>94%54,259 psi87%3179 fps100%
Hodgdon LEVERevolution<<locked>>82%55,680 psi89%3225 fps100%
Hodgdon Superformance<<locked>>90%55,419 psi89%3278 fps98%
Hodgdon TrailBossᴾ<<locked>>100%36,695 psi59%2037 fps100%
Hodgdon VARGET<<locked>>82%56,333 psi90%3189 fps100%
IMR 4064<<locked>>84%55,448 psi89%3163 fps99.9%
IMR 4166 Enduron<<locked>>82%54,578 psi88%3133 fps98%
IMR 4350<<locked>>92%54,592 psi88%3169 fps97.6%
IMR 4451 Enduron<<locked>>88%55,172 psi88%3169 fps98.1%
IMR 4831<<locked>>92%54,027 psi87%3192 fps99.7%
IMR 4895<<locked>>82%55,114 psi88%3205 fps100%
Lovex S062<<locked>>84%56,014 psi90%3163 fps100%
Lovex S065<<locked>>90%55,840 psi90%3176 fps99.1%
Lovex S070<<locked>>90%53,925 psi86%3159 fps98.1%
Lovex S071ᴾ<<locked>>100%46,557 psi75%3038 fps97.4%
Norma 203B<<locked>>84%56,434 psi90%3219 fps100%
Norma 204<<locked>>92%55,143 psi88%3219 fps96.5%
Norma MRP<<locked>>98%53,998 psi87%3304 fps98%
Norma URP<<locked>>92%55,477 psi89%3238 fps99.7%
Ramshot Big Game<<locked>>82%53,621 psi86%3182 fps99.9%
Ramshot Hunter<<locked>>92%54,172 psi87%3228 fps98.7%
ReloadSwiss RS 14ᴾ<<locked>>100%37,304 psi60%2083 fps100%
ReloadSwiss RS 50<<locked>>84%54,650 psi88%3159 fps98.5%
ReloadSwiss RS 60<<locked>>86%54,404 psi87%3281 fps100%
ReloadSwiss RS 62<<locked>>90%53,185 psi85%3215 fps99.4%
ReloadSwiss RS 70<<locked>>92%55,042 psi88%3301 fps99.6%
Rottweil R 902<<locked>>82%54,955 psi88%3127 fps100%
Rottweil R 903<<locked>>86%54,984 psi88%3173 fps100%
Rottweil R 905<<locked>>98%56,318 psi90%3261 fps97.1%
Rottweil R 907<<locked>>88%54,027 psi87%3143 fps97.4%
Shooters World Long Rifle<<locked>>90%55,840 psi90%3176 fps99.1%
Shooters World Precision<<locked>>84%56,014 psi90%3163 fps100%
Shooters World SW4350<<locked>>90%53,925 psi86%3159 fps98.1%
SNPE Vectan SP 11<<locked>>86%55,811 psi89%3225 fps100%
SNPE Vectan Tubal 5000<<locked>>86%55,361 psi89%3051 fps100%
SNPE Vectan Tubal 7000<<locked>>90%55,564 psi89%3120 fps98.2%
SNPE Vectan Tubal 8000<<locked>>98%55,811 psi89%3255 fps97%
Somchem S355<<locked>>86%54,650 psi88%3166 fps100%
Somchem S365<<locked>>94%54,868 psi88%3248 fps100%
Somchem S385<<locked>>96%53,896 psi86%3182 fps97.4%
Vihtavuori N135<<locked>>82%54,911 psi88%3087 fps100%
Vihtavuori N140<<locked>>82%54,911 psi88%3094 fps100%
Vihtavuori N150<<locked>>88%55,898 psi90%3136 fps100%
Vihtavuori N160<<locked>>90%54,056 psi87%3173 fps99.6%
Vihtavuori N165ᴾ<<locked>>100%52,765 psi85%3143 fps96.8%
Vihtavuori N540<<locked>>82%53,374 psi86%3091 fps100%
Vihtavuori N550<<locked>>90%53,534 psi86%3179 fps99.5%
Vihtavuori N555<<locked>>98%54,360 psi87%3251 fps99.9%
Winchester 6.5 StaBALL<<locked>>90%53,476 psi86%3136 fps100%
Winchester 760<<locked>>90%55,390 psi89%3248 fps98.2%
Winchester StaBALL HDᴾ<<locked>>100%47,007 psi75%3271 fps100%
Winchester Supreme 780<<locked>>98%53,519 psi86%3163 fps96.3%

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%45,513 psi73%2923 fps95.2%
Accurate 3100<<locked>>90%40,219 psi64%2904 fps95.6%
Accurate 3100<<locked>>90%40,219 psi64%2904 fps95.6%
Accurate 4064<<locked>>80%50,879 psi82%3064 fps100%
Accurate 4064<<locked>>80%50,879 psi82%3064 fps100%
Accurate 4350<<locked>>80%38,856 psi62%2897 fps97%
Accurate 4350<<locked>>80%38,856 psi62%2897 fps97%
Accurate 4350<<locked>>80%38,856 psi62%2897 fps97%
ADI AR 2208<<locked>>80%46,775 psi75%3009 fps99.1%
ADI AR 2208<<locked>>80%46,775 psi75%3009 fps99.1%
ADI AR 2208<<locked>>80%46,775 psi75%3009 fps99.1%
ADI AR 2209<<locked>>94%50,865 psi82%3163 fps95.6%
ADI AR 2209<<locked>>94%50,865 psi82%3163 fps95.6%
ADI AR 2209<<locked>>94%50,865 psi82%3163 fps95.6%
Alliant Power Pro 2000-MR<<locked>>80%51,372 psi82%3238 fps99.7%
Alliant Reloder- TS 15.5<<locked>>80%47,558 psi76%3045 fps99.9%
Alliant Reloder-15<<locked>>80%50,531 psi81%3114 fps99.6%
Alliant Reloder-1654.5 gr80%37,289 psi60%2894 fps96.8%
Alliant Reloder-17<<locked>>80%42,090 psi67%3035 fps99.3%
Alliant Reloder-19<<locked>>94%50,227 psi81%3153 fps95.6%
Alliant Reloder-22<<locked>>96%47,950 psi77%3146 fps95.1%
Alliant Reloder-23<<locked>>82%29,950 psi48%2694 fps95.3%
Alliant Reloder-25<<locked>>94%37,826 psi61%2933 fps95.2%
Alliant Reloder-2664.6 gr86%36,477 psi58%2943 fps95.7%
Bofors RP3<<locked>>80%48,486 psi78%3064 fps99.9%
Bofors RP5<<locked>>96%47,950 psi77%3146 fps95.1%
Bofors RP7<<locked>>82%45,165 psi72%2966 fps95.3%
Hodgdon H380<<locked>>80%48,559 psi78%3064 fps98.7%
Hodgdon H414<<locked>>82%42,801 psi69%2992 fps95.3%
Hodgdon H4350<<locked>>84%48,631 psi78%3077 fps95.5%
Hodgdon Hybrid 100V<<locked>>80%34,983 psi56%2785 fps97.6%
Hodgdon LEVERevolution<<locked>>80%52,141 psi84%3166 fps100%
Hodgdon Superformance<<locked>>84%44,904 psi72%3071 fps95.5%
Hodgdon TrailBoss<<locked>>80%27,572 psi44%1827 fps100%
Hodgdon VARGET<<locked>>80%53,040 psi85%3133 fps100%
IMR 4064<<locked>>80%49,197 psi79%3051 fps99.5%
IMR 4166 Enduron<<locked>>80%51,329 psi82%3074 fps97.4%
IMR 4350<<locked>>86%45,513 psi73%2995 fps95.5%
IMR 4451 Enduron<<locked>>80%43,511 psi70%2936 fps95.4%
IMR 4831<<locked>>80%37,246 psi60%2841 fps96.5%
IMR 4895<<locked>>80%51,837 psi83%3150 fps99.9%
Lovex S062<<locked>>80%49,821 psi80%3054 fps100%
Lovex S065<<locked>>80%41,510 psi67%2890 fps96.4%
Lovex S070<<locked>>82%42,337 psi68%2927 fps95.4%
Lovex S071<<locked>>94%38,972 psi62%2871 fps95.2%
Norma 203B<<locked>>80%50,009 psi80%3100 fps99.8%
Norma 204<<locked>>90%51,721 psi83%3156 fps95.7%
Norma MRP67.1 gr92%44,295 psi71%3104 fps95.6%
Norma URP<<locked>>80%38,159 psi61%2884 fps96.6%
Ramshot Big Game<<locked>>80%50,183 psi80%3120 fps99.7%
Ramshot Hunter<<locked>>82%39,421 psi63%2920 fps95.1%
ReloadSwiss RS 14<<locked>>80%28,007 psi45%1867 fps100%
ReloadSwiss RS 50<<locked>>80%48,254 psi77%3038 fps97.4%
ReloadSwiss RS 60<<locked>>80%44,512 psi71%3100 fps100%
ReloadSwiss RS 62<<locked>>80%38,290 psi61%2907 fps96.4%
ReloadSwiss RS 70<<locked>>80%37,101 psi59%2900 fps95.3%
Rottweil R 902<<locked>>80%51,721 psi83%3071 fps100%
Rottweil R 903<<locked>>80%45,600 psi73%3002 fps99.7%
Rottweil R 905<<locked>>94%49,472 psi79%3136 fps95.5%
Rottweil R 907<<locked>>82%45,165 psi72%2966 fps95.3%
Shooters World Long Rifle<<locked>>80%41,510 psi67%2890 fps96.4%
Shooters World Precision<<locked>>80%49,821 psi80%3054 fps100%
Shooters World SW4350<<locked>>82%42,337 psi68%2927 fps95.4%
SNPE Vectan SP 11<<locked>>80%46,209 psi74%3048 fps99.4%
SNPE Vectan Tubal 5000<<locked>>80%46,267 psi74%2904 fps100%
SNPE Vectan Tubal 7000<<locked>>82%43,395 psi70%2887 fps95.6%
SNPE Vectan Tubal 8000<<locked>>94%49,023 psi79%3130 fps95.4%
Somchem S355<<locked>>80%45,687 psi73%2995 fps99.6%
Somchem S365<<locked>>80%34,795 psi56%2841 fps98.8%
Somchem S385<<locked>>90%44,643 psi72%2999 fps95.1%
Vihtavuori N135<<locked>>80%51,721 psi83%3038 fps100%
Vihtavuori N140<<locked>>80%51,648 psi83%3045 fps100%
Vihtavuori N150<<locked>>80%43,584 psi70%2920 fps99.9%
Vihtavuori N160<<locked>>80%39,436 psi63%2881 fps97%
Vihtavuori N165<<locked>>96%46,427 psi74%3025 fps95.2%
Vihtavuori N540<<locked>>80%50,299 psi81%3038 fps100%
Vihtavuori N550<<locked>>80%39,291 psi63%2887 fps96.7%
Vihtavuori N555<<locked>>82%32,996 psi53%2785 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%38,667 psi62%2844 fps98.8%
Winchester 760<<locked>>82%43,004 psi69%2999 fps95.3%
Winchester StaBALL HD<<locked>>84%28,616 psi46%2723 fps95%
Winchester Supreme 780<<locked>>96%50,111 psi80%3100 fps95.4%

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 99 powders for 7 mm Rem. Mag. loaded with the .284 | 120gr | Barnes X BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,363 fps; across all powders the maximum-charge window runs from 2,037 fps to 3,363 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 120.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 3100, Accurate MAGPRO 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, Alliant Reloder-16, Norma MRP rank at the top here: for 7 mm Rem. Mag. with the .284 | 120gr | Barnes X BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, Bofors RP30, Hodgdon H1000 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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