Load data for 7 mm Rem. Mag. + .284 | 135gr | Atomic 29 HP

7 mm Rem. Mag. cartridge drawing
Atomic 29 logo

Load Specifications

Bullet Manufacturer:Atomic 29
Bullet Weight:135 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 | 135gr | Atomic 29 HP bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Ramshot Grand 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 2495<<locked>>82%55,927 psi90%2946 fps100%
Accurate 2700<<locked>>86%54,752 psi88%2966 fps98.3%
Accurate 3100ᴾ<<locked>>100%55,216 psi89%3054 fps99.5%
Accurate 4064<<locked>>84%56,231 psi90%3002 fps100%
Accurate 4350<<locked>>90%53,664 psi86%3058 fps99.9%
ADI AR 2208<<locked>>86%56,188 psi90%3035 fps100%
ADI AR 2209<<locked>>96%54,476 psi87%3094 fps97.6%
ADI AR 2213ᴾ<<locked>>100%56,028 psi90%3150 fps96.7%
Alliant Power Pro 2000-MR<<locked>>82%55,796 psi89%3163 fps100%
Alliant Reloder- TS 15.5<<locked>>84%53,592 psi86%3005 fps100%
Alliant Reloder-15<<locked>>82%53,824 psi86%3028 fps100%
Alliant Reloder-16<<locked>>92%54,273 psi87%3114 fps100%
Alliant Reloder-17<<locked>>88%55,724 psi89%3140 fps100%
Alliant Reloder-19<<locked>>96%53,983 psi87%3084 fps97.6%
Alliant Reloder-22ᴾ<<locked>>100%55,013 psi88%3143 fps98%
Alliant Reloder-23ᴾ<<locked>>100%51,808 psi83%3071 fps100%
Alliant Reloder-25ᴾ<<locked>>100%45,179 psi72%2992 fps98.9%
Alliant Reloder-26<<locked>>98%55,970 psi90%3222 fps100%
Bofors RP15ᴾ<<locked>>100%50,343 psi81%3058 fps96.9%
Bofors RP3<<locked>>84%54,462 psi87%3022 fps100%
Bofors RP5ᴾ<<locked>>100%55,013 psi88%3143 fps98%
Bofors RP7<<locked>>88%53,882 psi86%3002 fps98.4%
Hodgdon H380<<locked>>84%54,766 psi88%3035 fps99.9%
Hodgdon H414<<locked>>86%53,156 psi85%3064 fps98.7%
Hodgdon H4350<<locked>>90%53,708 psi86%3035 fps97.8%
Hodgdon Hybrid 100V<<locked>>94%54,607 psi88%3035 fps100%
Hodgdon LEVERevolution<<locked>>82%56,043 psi90%3074 fps100%
Hodgdon Superformance<<locked>>90%56,159 psi90%3143 fps99%
Hodgdon TrailBossᴾ<<locked>>100%36,434 psi58%1919 fps100%
Hodgdon VARGET<<locked>>84%55,782 psi89%3025 fps100%
IMR 3031<<locked>>82%55,027 psi88%2995 fps100%
IMR 4064<<locked>>86%55,172 psi88%3009 fps100%
IMR 4166 Enduron<<locked>>86%53,896 psi86%2979 fps98.8%
IMR 4350<<locked>>92%54,897 psi88%3035 fps98.6%
IMR 4451 Enduron<<locked>>88%55,506 psi89%3031 fps98.9%
IMR 4831<<locked>>96%54,998 psi88%3061 fps100%
IMR 4895<<locked>>82%55,216 psi89%3054 fps100%
IMR 4955 Enduron<<locked>>96%53,969 psi87%3018 fps95.8%
IMR 7828 SSC<<locked>>98%53,809 psi86%3123 fps96.3%
Lovex S062<<locked>>84%55,912 psi90%3009 fps100%
Lovex S065<<locked>>90%55,550 psi89%3028 fps99.6%
Lovex S070<<locked>>90%53,563 psi86%3015 fps98.9%
Lovex S071ᴾ<<locked>>100%45,847 psi74%2897 fps98.2%
Norma 203B<<locked>>82%53,127 psi85%3012 fps100%
Norma 204<<locked>>92%55,724 psi89%3087 fps97.7%
Norma MRP<<locked>>98%54,636 psi88%3169 fps99%
Norma URP<<locked>>92%55,941 psi90%3097 fps100%
Ramshot Big Game<<locked>>82%53,940 psi86%3038 fps100%
Ramshot Grand<<locked>>96%53,447 psi86%3127 fps96.6%
Ramshot Hunter<<locked>>92%54,665 psi88%3094 fps99.4%
Ramshot Magnumᴾ<<locked>>100%54,114 psi87%3104 fps98.4%
ReloadSwiss RS 14ᴾ<<locked>>100%37,014 psi59%1962 fps100%
ReloadSwiss RS 50<<locked>>84%54,737 psi88%3018 fps99.3%
ReloadSwiss RS 60<<locked>>86%54,969 psi88%3130 fps100%
ReloadSwiss RS 62<<locked>>90%53,374 psi86%3074 fps99.9%
ReloadSwiss RS 70<<locked>>92%55,811 psi89%3166 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%44,121 psi71%3005 fps97.1%
Rottweil R 902<<locked>>82%54,491 psi87%2972 fps100%
Rottweil R 903<<locked>>86%54,578 psi88%3018 fps100%
Rottweil R 904<<locked>>96%56,333 psi90%3068 fps96.9%
Rottweil R 905<<locked>>96%53,200 psi85%3068 fps97.6%
Rottweil R 907<<locked>>88%53,882 psi86%3002 fps98.4%
Shooters World Long Rifle<<locked>>90%55,550 psi89%3028 fps99.6%
Shooters World Precision<<locked>>84%55,912 psi90%3009 fps100%
Shooters World SW4350<<locked>>90%53,563 psi86%3015 fps98.9%
SNPE Vectan SP 11<<locked>>86%56,275 psi90%3081 fps100%
SNPE Vectan Tubal 5000<<locked>>86%55,347 psi89%2900 fps100%
SNPE Vectan Tubal 7000<<locked>>90%55,288 psi89%2979 fps99%
SNPE Vectan Tubal 8000<<locked>>98%56,188 psi90%3120 fps98.1%
Somchem S355<<locked>>86%54,607 psi88%3015 fps100%
Somchem S365<<locked>>94%55,419 psi89%3100 fps100%
Somchem S385<<locked>>96%53,882 psi86%3041 fps98.4%
Unknown powder<<locked>>88%52,837 psi85%3045 fps99.7%
Vihtavuori N133<<locked>>82%54,534 psi87%2877 fps100%
Vihtavuori N135<<locked>>82%54,679 psi88%2930 fps100%
Vihtavuori N140<<locked>>82%54,273 psi87%2936 fps100%
Vihtavuori N150<<locked>>92%56,217 psi90%2999 fps100%
Vihtavuori N160<<locked>>88%53,374 psi86%3015 fps99.9%
Vihtavuori N165ᴾ<<locked>>100%51,343 psi82%2982 fps97.6%
Vihtavuori N540<<locked>>82%53,969 psi87%2959 fps100%
Vihtavuori N550<<locked>>88%53,650 psi86%3058 fps99.9%
Vihtavuori N555<<locked>>98%54,288 psi87%3100 fps100%
Vihtavuori N560ᴾ<<locked>>100%55,158 psi88%3166 fps96.2%
Winchester 6.5 StaBALL<<locked>>90%54,041 psi87%2999 fps100%
Winchester 760<<locked>>86%53,156 psi85%3064 fps98.7%
Winchester StaBALL HDᴾ<<locked>>100%47,152 psi76%3136 fps100%
Winchester Supreme 780<<locked>>96%55,869 psi90%3068 fps97.8%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%52,272 psi84%2894 fps100%
Accurate 2700<<locked>>80%44,962 psi72%2789 fps96.4%
Accurate 3100<<locked>>88%36,637 psi59%2697 fps95.7%
Accurate 4064<<locked>>80%49,516 psi79%2897 fps100%
Accurate 4350<<locked>>80%37,869 psi61%2746 fps97.8%
ADI AR 2208<<locked>>80%46,644 psi75%2867 fps99.7%
ADI AR 2209<<locked>>90%44,701 psi72%2904 fps95.2%
ADI AR 2213<<locked>>98%52,315 psi84%3081 fps95.8%
Alliant Power Pro 2000-MR<<locked>>80%51,822 psi83%3097 fps100%
Alliant Reloder- TS 15.5<<locked>>80%47,195 psi76%2897 fps100%
Alliant Reloder-15<<locked>>80%50,401 psi81%2969 fps99.9%
Alliant Reloder-16<<locked>>80%36,854 psi59%2759 fps97.8%
Alliant Reloder-17<<locked>>80%41,858 psi67%2894 fps99.8%
Alliant Reloder-19<<locked>>90%44,469 psi71%2900 fps95.3%
Alliant Reloder-22<<locked>>94%44,831 psi72%2949 fps95.5%
Alliant Reloder-23<<locked>>80%27,006 psi43%2490 fps95.1%
Alliant Reloder-25<<locked>>92%34,882 psi56%2740 fps95.5%
Alliant Reloder-2661.9 gr84%33,359 psi53%2736 fps95.8%
Bofors RP15<<locked>>96%44,208 psi71%2936 fps95.2%
Bofors RP3<<locked>>80%47,645 psi76%2907 fps100%
Bofors RP5<<locked>>94%44,831 psi72%2949 fps95.5%
Bofors RP7<<locked>>80%41,829 psi67%2766 fps95.6%
Hodgdon H380<<locked>>80%47,964 psi77%2917 fps99.3%
Hodgdon H414<<locked>>80%43,337 psi69%2874 fps96.7%
Hodgdon H4350<<locked>>84%44,556 psi71%2861 fps95.6%
Hodgdon Hybrid 100V<<locked>>80%34,330 psi55%2644 fps98.4%
Hodgdon LEVERevolution<<locked>>80%52,475 psi84%3018 fps100%
Hodgdon Superformance<<locked>>82%41,771 psi67%2874 fps95.9%
Hodgdon TrailBoss<<locked>>80%27,253 psi44%1719 fps100%
Hodgdon VARGET<<locked>>80%49,139 psi79%2917 fps100%
IMR 3031<<locked>>80%51,619 psi83%2943 fps100%
IMR 4064<<locked>>80%45,919 psi74%2848 fps99.7%
IMR 4166 Enduron<<locked>>80%45,005 psi72%2812 fps97.1%
IMR 4350<<locked>>82%40,016 psi64%2746 fps95.1%
IMR 4451 Enduron<<locked>>80%43,323 psi69%2802 fps96.6%
IMR 4831<<locked>>80%33,025 psi53%2612 fps96.3%
IMR 4895<<locked>>80%51,721 psi83%2999 fps100%
IMR 4955 Enduron<<locked>>94%50,836 psi82%2963 fps95%
IMR 7828 SSC<<locked>>96%50,212 psi81%3054 fps95.4%
Lovex S062<<locked>>80%49,298 psi79%2904 fps100%
Lovex S065<<locked>>80%40,756 psi65%2746 fps97.3%
Lovex S070<<locked>>80%39,001 psi63%2723 fps95.6%
Lovex S071<<locked>>92%35,360 psi57%2667 fps95.2%
Norma 203B<<locked>>80%49,777 psi80%2953 fps100%
Norma 204<<locked>>86%45,469 psi73%2900 fps95.3%
Norma MRP64.4 gr90%41,278 psi66%2904 fps96%
Norma URP<<locked>>80%37,608 psi60%2743 fps97.6%
Ramshot Big Game<<locked>>80%50,256 psi81%2976 fps100%
Ramshot Grand69.3 gr94%49,516 psi79%3054 fps95.6%
Ramshot Hunter<<locked>>80%36,506 psi59%2723 fps95.4%
Ramshot Magnum<<locked>>94%43,120 psi69%2897 fps95.8%
ReloadSwiss RS 14<<locked>>80%27,644 psi44%1755 fps100%
ReloadSwiss RS 50<<locked>>80%47,921 psi77%2897 fps98.3%
ReloadSwiss RS 60<<locked>>80%44,454 psi71%2953 fps100%
ReloadSwiss RS 62<<locked>>80%37,579 psi60%2762 fps97.4%
ReloadSwiss RS 70<<locked>>80%36,579 psi59%2769 fps96.7%
ReloadSwiss RS 76<<locked>>98%41,263 psi66%2936 fps96%
Rottweil R 902<<locked>>80%51,271 psi82%2920 fps100%
Rottweil R 903<<locked>>80%44,817 psi72%2851 fps99.9%
Rottweil R 904<<locked>>92%49,574 psi79%2946 fps95.3%
Rottweil R 905<<locked>>90%43,497 psi70%2881 fps95.2%
Rottweil R 907<<locked>>80%41,829 psi67%2766 fps95.6%
Shooters World Long Rifle<<locked>>80%40,756 psi65%2746 fps97.3%
Shooters World Precision<<locked>>80%49,298 psi79%2904 fps100%
Shooters World SW4350<<locked>>80%39,001 psi63%2723 fps95.6%
SNPE Vectan SP 11<<locked>>80%45,977 psi74%2904 fps99.8%
SNPE Vectan Tubal 5000<<locked>>80%45,948 psi74%2756 fps100%
SNPE Vectan Tubal 7000<<locked>>80%39,885 psi64%2687 fps95.8%
SNPE Vectan Tubal 8000<<locked>>90%43,105 psi69%2874 fps95%
Somchem S355<<locked>>80%45,063 psi72%2848 fps99.9%
Somchem S365<<locked>>80%34,069 psi55%2697 fps99.3%
Somchem S385<<locked>>88%41,466 psi66%2805 fps95.5%
Unknown powder<<locked>>80%40,509 psi65%2802 fps97.8%
Vihtavuori N133<<locked>>80%51,517 psi83%2835 fps100%
Vihtavuori N135<<locked>>80%51,343 psi82%2881 fps100%
Vihtavuori N140<<locked>>80%51,068 psi82%2887 fps100%
Vihtavuori N150<<locked>>80%38,653 psi62%2687 fps99.8%
Vihtavuori N160<<locked>>80%40,741 psi65%2779 fps98.3%
Vihtavuori N165<<locked>>94%42,047 psi67%2808 fps95.2%
Vihtavuori N540<<locked>>80%50,618 psi81%2910 fps100%
Vihtavuori N550<<locked>>80%41,205 psi66%2822 fps98.3%
Vihtavuori N555<<locked>>80%29,921 psi48%2575 fps95.4%
Vihtavuori N560<<locked>>98%51,576 psi83%3100 fps95.3%
Winchester 6.5 StaBALL<<locked>>80%38,247 psi61%2713 fps99.4%
Winchester 760<<locked>>80%43,337 psi69%2874 fps96.7%
Winchester StaBALL HD<<locked>>84%27,224 psi44%2582 fps96.1%
Winchester Supreme 780<<locked>>90%44,817 psi72%2871 fps95.3%

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 98 powders for 7 mm Rem. Mag. loaded with the .284 | 135gr | Atomic 29 HP. Alliant Reloder-26 delivers the highest muzzle velocity at 3,222 fps; across all powders the maximum-charge window runs from 1,919 fps to 3,222 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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, Ramshot Grand, Norma MRP rank at the top here: for 7 mm Rem. Mag. with the .284 | 135gr | Atomic 29 HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2217, ADI AR 2225 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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