Load data for .280 Rem. + .284 | 120gr | Sierra Pro-Hunter

.280 Rem. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:120 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.54"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:67.9 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:16.0

Load data in caliber .280 Rem. with .284 | 120gr | Sierra Pro-Hunter bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.

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 2015<<locked>>82%51,822 psi88%2966 fps100%
Accurate 2495<<locked>>86%50,734 psi86%2989 fps100%
Accurate 2520<<locked>>82%52,243 psi89%3051 fps100%
Accurate 4064<<locked>>88%50,952 psi87%3035 fps100%
Accurate 4350<<locked>>96%50,299 psi86%3097 fps98.4%
ADI AR 2206H<<locked>>84%51,140 psi87%3058 fps99.3%
ADI AR 2208<<locked>>90%52,199 psi89%3058 fps99.1%
ADI Benchmark 8208<<locked>>82%50,212 psi85%3012 fps99.8%
Alliant AR-Comp<<locked>>82%50,749 psi86%2999 fps100%
Alliant Power Pro 2000-MR<<locked>>86%50,575 psi86%3169 fps98.9%
Alliant Power Pro Varmint<<locked>>84%51,822 psi88%3074 fps99.7%
Alliant Reloder- TS 15.5<<locked>>90%52,112 psi89%3081 fps99.8%
Alliant Reloder-15<<locked>>88%52,678 psi90%3104 fps99.2%
Alliant Reloder-16<<locked>>98%51,895 psi88%3163 fps99%
Alliant Reloder-17<<locked>>94%52,939 psi90%3205 fps99.9%
Alliant Reloder-23ᴾ<<locked>>100%39,479 psi67%2920 fps97.7%
Alliant Reloder-26ᴾ<<locked>>100%44,541 psi76%3094 fps96.9%
Baschieri & Pellagri 107<<locked>>84%50,952 psi87%3068 fps98.6%
Bofors RP3<<locked>>90%52,750 psi90%3097 fps99.9%
Bofors RP7<<locked>>94%53,011 psi90%3058 fps95.8%
Hodgdon Benchmark<<locked>>82%51,764 psi88%2995 fps100%
Hodgdon BL-C2<<locked>>84%52,852 psi90%3091 fps100%
Hodgdon H380<<locked>>88%50,328 psi86%3048 fps98%
Hodgdon H4895<<locked>>84%51,663 psi88%3071 fps99.6%
Hodgdon Hybrid 100Vᴾ<<locked>>100%51,547 psi88%3091 fps99.7%
Hodgdon LEVERevolution<<locked>>86%50,923 psi87%3100 fps99.8%
Hodgdon TrailBossᴾ<<locked>>100%35,418 psi60%1946 fps100%
Hodgdon VARGET<<locked>>86%52,750 psi90%3071 fps99.7%
IMR 3031<<locked>>84%51,517 psi88%3064 fps100%
IMR 4064<<locked>>88%51,851 psi88%3045 fps99.2%
IMR 4166 Enduron<<locked>>86%51,634 psi88%3012 fps96.1%
IMR 4451 Enduron<<locked>>92%51,634 psi88%3038 fps96%
IMR 4831<<locked>>98%50,952 psi87%3091 fps98.6%
IMR 4895<<locked>>86%50,691 psi86%3077 fps99.3%
IMR 8208 XBR<<locked>>82%50,212 psi85%3012 fps99.8%
Lovex D073.6<<locked>>84%50,618 psi86%3035 fps100%
Lovex S060<<locked>>84%50,792 psi86%2986 fps99.3%
Lovex S062<<locked>>88%51,677 psi88%3041 fps99.9%
Lovex S065<<locked>>94%50,995 psi87%3031 fps97.4%
Lovex S070<<locked>>96%51,779 psi88%3064 fps96.4%
Norma 201<<locked>>84%50,024 psi85%3005 fps99.8%
Norma 202<<locked>>84%50,531 psi86%3012 fps100%
Norma 203B<<locked>>88%51,938 psi88%3091 fps99.5%
Norma URP<<locked>>98%53,113 psi90%3146 fps98.8%
Ramshot Big Game<<locked>>88%52,504 psi89%3114 fps99.4%
Ramshot Hunter<<locked>>98%52,112 psi89%3140 fps97.3%
Ramshot TAC<<locked>>82%50,444 psi86%3015 fps97.4%
Ramshot Wild Boar<<locked>>82%49,980 psi85%3038 fps99.2%
ReloadSwiss RS 14ᴾ<<locked>>100%35,911 psi61%1991 fps100%
ReloadSwiss RS 50<<locked>>88%50,459 psi86%3025 fps96.5%
ReloadSwiss RS 52<<locked>>86%52,982 psi90%3169 fps99.2%
ReloadSwiss RS 60<<locked>>92%52,591 psi90%3209 fps100%
ReloadSwiss RS 62<<locked>>96%50,140 psi85%3120 fps98.2%
ReloadSwiss RS 70<<locked>>96%49,893 psi85%3140 fps97.8%
Rottweil R 901<<locked>>82%50,981 psi87%2995 fps100%
Rottweil R 902<<locked>>86%50,459 psi86%3002 fps99.8%
Rottweil R 903<<locked>>92%52,547 psi89%3087 fps99.8%
Rottweil R 907<<locked>>94%53,011 psi90%3058 fps95.8%
Shooters World Long Rifle<<locked>>94%50,995 psi87%3031 fps97.4%
Shooters World Match Rifle<<locked>>84%50,618 psi86%3035 fps100%
Shooters World Precision<<locked>>88%51,677 psi88%3041 fps99.9%
Shooters World SW4350<<locked>>96%51,779 psi88%3064 fps96.4%
SNPE Vectan SP 11<<locked>>90%50,937 psi87%3091 fps99.3%
SNPE Vectan SP 7<<locked>>84%52,199 psi89%3051 fps98.2%
SNPE Vectan SP 9<<locked>>86%52,997 psi90%3084 fps99.5%
SNPE Vectan Tubal 3000<<locked>>84%51,561 psi88%2953 fps100%
SNPE Vectan Tubal 5000<<locked>>90%51,764 psi88%2949 fps100%
SNPE Vectan Tubal 7000<<locked>>94%51,024 psi87%2976 fps96%
Somchem S335<<locked>>84%50,937 psi87%2949 fps100%
Somchem S341<<locked>>84%51,953 psi88%3045 fps99.4%
Somchem S355<<locked>>92%52,910 psi90%3087 fps99.7%
Somchem S365ᴾ<<locked>>100%50,981 psi87%3150 fps100%
Vihtavuori N133<<locked>>84%51,837 psi88%2943 fps100%
Vihtavuori N135<<locked>>86%50,227 psi86%2979 fps100%
Vihtavuori N140<<locked>>86%50,850 psi87%2989 fps100%
Vihtavuori N150<<locked>>92%50,952 psi87%3012 fps100%
Vihtavuori N160<<locked>>96%52,011 psi89%3084 fps98.6%
Vihtavuori N530<<locked>>82%50,401 psi86%3005 fps99.8%
Vihtavuori N540<<locked>>88%52,707 psi90%3035 fps100%
Vihtavuori N550<<locked>>96%51,256 psi87%3091 fps98.3%
Vihtavuori N555ᴾ<<locked>>100%43,497 psi74%3012 fps97.7%
Winchester 6.5 StaBALL<<locked>>96%52,373 psi89%3064 fps99.8%
Winchester 748<<locked>>82%50,343 psi86%3054 fps100%
Winchester StaBALL HDᴾ<<locked>>100%35,462 psi60%2900 fps97.1%
Winchester StaBALL Match<<locked>>86%52,765 psi90%3091 fps99.8%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%48,834 psi83%2917 fps100%
Accurate 2495<<locked>>80%41,481 psi71%2828 fps100%
Accurate 2520<<locked>>80%48,660 psi83%2992 fps100%
Accurate 4064<<locked>>80%39,233 psi67%2815 fps99.8%
Accurate 4350<<locked>>88%38,043 psi65%2844 fps95.3%
ADI AR 2206H<<locked>>80%45,049 psi77%2940 fps98.5%
ADI AR 2208<<locked>>80%38,305 psi65%2772 fps96.1%
ADI Benchmark 8208<<locked>>80%47,137 psi80%2953 fps99.5%
Alliant AR-Comp<<locked>>80%47,398 psi81%2946 fps100%
Alliant Power Pro 2000-MR<<locked>>80%40,959 psi70%2959 fps96.7%
Alliant Power Pro Varmint<<locked>>80%45,629 psi78%2956 fps99%
Alliant Reloder- TS 15.5<<locked>>80%37,913 psi65%2795 fps97.6%
Alliant Reloder-15<<locked>>80%40,785 psi69%2864 fps97%
Alliant Reloder-16<<locked>>88%37,826 psi64%2854 fps95.3%
Alliant Reloder-1750.5 gr80%32,750 psi56%2743 fps95.1%
Alliant Reloder-23<<locked>>94%32,808 psi56%2740 fps95%
Alliant Reloder-26<<locked>>98%41,437 psi71%3022 fps95.9%
Baschieri & Pellagri 107<<locked>>80%44,440 psi76%2940 fps97.4%
Bofors RP3<<locked>>80%37,623 psi64%2799 fps97.7%
Bofors RP7<<locked>>92%49,748 psi85%2999 fps95%
Hodgdon Benchmark<<locked>>80%48,921 psi83%2946 fps99.9%
Hodgdon BL-C2<<locked>>80%46,021 psi78%2969 fps99.7%
Hodgdon H380<<locked>>82%41,220 psi70%2861 fps95.8%
Hodgdon H4895<<locked>>80%45,484 psi77%2953 fps98.9%
Hodgdon Hybrid 100V<<locked>>86%32,663 psi56%2680 fps95.3%
Hodgdon LEVERevolution<<locked>>80%41,408 psi70%2913 fps98.6%
Hodgdon TrailBoss<<locked>>80%26,281 psi45%1739 fps100%
Hodgdon VARGET<<locked>>80%43,511 psi74%2897 fps98.6%
IMR 3031<<locked>>80%45,223 psi77%2956 fps100%
IMR 4064<<locked>>80%40,219 psi68%2812 fps96.9%
IMR 4166 Enduron<<locked>>84%48,501 psi83%2953 fps95.3%
IMR 4451 Enduron<<locked>>90%48,544 psi83%2979 fps95.2%
IMR 4831<<locked>>88%36,782 psi63%2795 fps95%
IMR 4895<<locked>>80%41,756 psi71%2897 fps97.8%
IMR 8208 XBR<<locked>>80%47,137 psi80%2953 fps99.5%
Lovex D073.6<<locked>>80%44,382 psi76%2920 fps99.9%
Lovex S060<<locked>>80%45,034 psi77%2874 fps98.5%
Lovex S062<<locked>>80%40,161 psi68%2815 fps98.5%
Lovex S065<<locked>>88%42,424 psi72%2861 fps95.2%
Lovex S070<<locked>>94%48,588 psi83%3005 fps95.7%
Norma 201<<locked>>80%44,019 psi75%2890 fps99.2%
Norma 202<<locked>>80%44,425 psi76%2900 fps100%
Norma 203B<<locked>>80%40,147 psi68%2851 fps97.4%
Norma URP<<locked>>88%38,116 psi65%2844 fps95.2%
Ramshot Big Game<<locked>>80%39,639 psi67%2858 fps97.1%
Ramshot Hunter<<locked>>94%45,600 psi78%3012 fps95.6%
Ramshot TAC<<locked>>80%47,195 psi80%2953 fps96.7%
Ramshot Wild Boar<<locked>>80%46,659 psi79%2976 fps98.7%
ReloadSwiss RS 14<<locked>>80%26,789 psi46%1785 fps100%
ReloadSwiss RS 50<<locked>>86%47,413 psi81%2963 fps95.8%
ReloadSwiss RS 52<<locked>>80%43,004 psi73%2976 fps97.5%
ReloadSwiss RS 6050.5 gr80%34,838 psi59%2818 fps98.5%
ReloadSwiss RS 62<<locked>>90%40,567 psi69%2927 fps95.8%
ReloadSwiss RS 7057.8 gr90%40,712 psi69%2936 fps95%
Rottweil R 901<<locked>>80%48,080 psi82%2943 fps100%
Rottweil R 902<<locked>>80%42,061 psi72%2841 fps98.9%
Rottweil R 903<<locked>>80%35,476 psi60%2736 fps96.7%
Rottweil R 907<<locked>>92%49,748 psi85%2999 fps95%
Shooters World Long Rifle<<locked>>88%42,424 psi72%2861 fps95.2%
Shooters World Match Rifle<<locked>>80%44,382 psi76%2920 fps99.9%
Shooters World Precision<<locked>>80%40,161 psi68%2815 fps98.5%
Shooters World SW4350<<locked>>94%48,588 psi83%3005 fps95.7%
SNPE Vectan SP 11<<locked>>80%36,448 psi62%2789 fps96.1%
SNPE Vectan SP 7<<locked>>80%45,440 psi77%2923 fps96.8%
SNPE Vectan SP 9<<locked>>80%43,656 psi74%2904 fps98.2%
SNPE Vectan Tubal 3000<<locked>>80%45,440 psi77%2848 fps100%
SNPE Vectan Tubal 5000<<locked>>80%37,840 psi64%2697 fps99.9%
SNPE Vectan Tubal 7000<<locked>>92%47,718 psi81%2917 fps95.2%
Somchem S335<<locked>>80%44,933 psi76%2844 fps100%
Somchem S341<<locked>>80%45,223 psi77%2923 fps98.4%
Somchem S355<<locked>>80%36,129 psi62%2743 fps96.7%
Somchem S365<<locked>>84%29,936 psi51%2661 fps95.6%
Vihtavuori N133<<locked>>80%45,774 psi78%2844 fps100%
Vihtavuori N135<<locked>>80%41,524 psi71%2828 fps100%
Vihtavuori N140<<locked>>80%42,148 psi72%2831 fps100%
Vihtavuori N150<<locked>>80%34,505 psi59%2677 fps97.6%
Vihtavuori N160<<locked>>88%39,914 psi68%2848 fps95.8%
Vihtavuori N530<<locked>>80%47,195 psi80%2946 fps99.6%
Vihtavuori N540<<locked>>80%40,495 psi69%2812 fps99.8%
Vihtavuori N550<<locked>>88%39,421 psi67%2851 fps95.4%
Vihtavuori N555<<locked>>94%35,447 psi60%2822 fps95.1%
Winchester 6.5 StaBALL<<locked>>82%32,808 psi56%2644 fps95.5%
Winchester 748<<locked>>80%46,847 psi80%2992 fps99.8%
Winchester StaBALL HD<<locked>>98%33,315 psi57%2831 fps95.8%
Winchester StaBALL Match<<locked>>80%43,047 psi73%2907 fps98.6%

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 85 powders for .280 Rem. loaded with the .284 | 120gr | Sierra Pro-Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,946 fps to 3,209 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.284" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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. ReloadSwiss RS 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .280 Rem. with the .284 | 120gr | Sierra Pro-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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