Load data for .27 Nosler + .277 | 150gr | Geco SOFTPOINT

.27 Nosler cartridge drawing
Geco logo

Load Specifications

Bullet Manufacturer:Geco
Bullet Weight:150 gr
Bullet Diameter:0.277"
Bullet Length:<<locked>>
Case Length (l3):2.59"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:98.4 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:14.0

Load data in caliber .27 Nosler with .277 | 150gr | Geco SOFTPOINT bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 80 and Vihtavuori N570.

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>>88%57,667 psi89%2966 fps100%
Accurate MAGPRO<<locked>>86%56,565 psi87%3071 fps99.1%
ADI AR 2209<<locked>>86%58,653 psi90%3051 fps100%
ADI AR 2213<<locked>>88%57,319 psi88%3071 fps99.7%
ADI AR 2217<<locked>>96%55,912 psi86%3045 fps99.8%
ADI AR 2218ᴾ<<locked>>100%56,347 psi87%3156 fps97.9%
ADI AR 2225ᴾ<<locked>>100%58,798 psi90%3123 fps100%
Alliant Reloder-19<<locked>>86%58,160 psi89%3038 fps100%
Alliant Reloder-22<<locked>>88%57,754 psi89%3064 fps100%
Alliant Reloder-23<<locked>>88%55,767 psi86%2969 fps100%
Alliant Reloder-25<<locked>>92%56,188 psi86%3041 fps100%
Alliant Reloder-26<<locked>>84%56,405 psi87%3054 fps100%
Alliant Reloder-33<<locked>>98%58,160 psi89%3136 fps98.1%
Alliant Reloder-50ᴾ<<locked>>100%53,635 psi83%3051 fps96.6%
Baschieri & Pellagri 109<<locked>>90%57,725 psi89%3025 fps98.2%
Bofors RP15<<locked>>90%56,942 psi88%3048 fps100%
Bofors RP30<<locked>>94%55,912 psi86%3054 fps99.8%
Bofors RP5<<locked>>88%57,754 psi89%3064 fps100%
Hodgdon H1000<<locked>>94%57,566 psi89%3068 fps100%
Hodgdon H4831<<locked>>86%56,173 psi86%2995 fps99.3%
Hodgdon H4831 SC<<locked>>86%55,114 psi85%2979 fps99.2%
Hodgdon Hybrid 100V<<locked>>82%55,303 psi85%2904 fps100%
Hodgdon Retumbo<<locked>>92%55,230 psi85%3127 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,840 psi58%1926 fps100%
IMR 4350<<locked>>82%57,072 psi88%2966 fps100%
IMR 4831<<locked>>82%58,073 psi89%2972 fps100%
IMR 4955 Enduron<<locked>>86%56,478 psi87%2976 fps99.4%
IMR 7828 SSC<<locked>>88%55,695 psi86%3051 fps99.6%
IMR 8133 Enduronᴾ<<locked>>100%53,940 psi83%3041 fps99.6%
Lovex S071<<locked>>92%55,680 psi86%2936 fps100%
Norma 204<<locked>>82%58,566 psi90%3028 fps100%
Norma 217ᴾ<<locked>>100%55,013 psi85%3064 fps100%
Norma MRP<<locked>>86%57,754 psi89%3077 fps100%
Ramshot Grand<<locked>>88%57,000 psi88%3074 fps99.8%
Ramshot Hunter<<locked>>82%58,566 psi90%3025 fps100%
Ramshot Magnum<<locked>>90%55,245 psi85%2999 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,725 psi60%1969 fps100%
ReloadSwiss RS 76<<locked>>92%56,086 psi86%3117 fps100%
ReloadSwiss RS 80<<locked>>94%55,274 psi85%3074 fps99.1%
Rottweil R 904<<locked>>84%55,492 psi85%2963 fps99.5%
Rottweil R 905<<locked>>86%58,131 psi89%3035 fps100%
SNPE Vectan Tubal 8000<<locked>>86%57,740 psi89%3028 fps100%
Somchem S361<<locked>>84%56,840 psi87%2956 fps99.3%
Somchem S365<<locked>>82%57,377 psi88%2963 fps100%
Somchem S385<<locked>>86%58,291 psi90%2999 fps100%
Vihtavuori N165<<locked>>90%58,407 psi90%2989 fps100%
Vihtavuori N170<<locked>>94%57,522 psi88%3009 fps96.4%
Vihtavuori N555<<locked>>86%57,696 psi89%2999 fps100%
Vihtavuori N560<<locked>>86%57,145 psi88%3077 fps99.5%
Vihtavuori N565<<locked>>92%58,146 psi89%3071 fps99.7%
Vihtavuori N568<<locked>>94%55,825 psi86%3077 fps98.8%
Vihtavuori N570<<locked>>96%57,203 psi88%3143 fps97.6%
Winchester StaBALL HD<<locked>>88%55,883 psi86%3058 fps100%
Winchester Supreme 780<<locked>>88%58,378 psi90%3002 fps100%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%44,063 psi68%2740 fps99.9%
Accurate MAGPRO<<locked>>80%45,701 psi70%2864 fps97%
ADI AR 2209<<locked>>80%48,022 psi74%2867 fps99.2%
ADI AR 2213<<locked>>80%43,410 psi67%2812 fps97.5%
ADI AR 2217<<locked>>84%37,101 psi57%2664 fps95.8%
ADI AR 2218<<locked>>96%48,689 psi75%3005 fps95.8%
ADI AR 2225<<locked>>80%29,704 psi46%2497 fps95.5%
Alliant Reloder-19<<locked>>80%47,979 psi74%2864 fps99.3%
Alliant Reloder-22<<locked>>80%44,179 psi68%2815 fps98.7%
Alliant Reloder-23<<locked>>80%42,830 psi66%2753 fps100%
Alliant Reloder-25<<locked>>80%37,057 psi57%2684 fps99.5%
Alliant Reloder-26<<locked>>80%48,559 psi75%2927 fps100%
Alliant Reloder-33<<locked>>92%46,528 psi72%2920 fps95.2%
Alliant Reloder-50<<locked>>98%49,835 psi77%2979 fps95.6%
Baschieri & Pellagri 109<<locked>>84%47,398 psi73%2841 fps95.9%
Bofors RP15<<locked>>80%41,118 psi63%2749 fps97.9%
Bofors RP30<<locked>>82%37,130 psi57%2677 fps96%
Bofors RP5<<locked>>80%44,179 psi68%2815 fps98.7%
Hodgdon H1000<<locked>>80%35,172 psi54%2618 fps95.7%
Hodgdon H4831<<locked>>80%45,876 psi71%2812 fps97.5%
Hodgdon H4831 SC<<locked>>80%45,165 psi69%2795 fps97.4%
Hodgdon Hybrid 100V<<locked>>80%51,953 psi80%2851 fps100%
Hodgdon Retumbo68.9 gr80%36,303 psi56%2726 fps97.4%
Hodgdon TrailBoss<<locked>>80%28,384 psi44%1722 fps100%
IMR 4350<<locked>>80%53,592 psi82%2910 fps100%
IMR 4831<<locked>>80%54,462 psi84%2920 fps100%
IMR 4955 Enduron<<locked>>80%46,731 psi72%2799 fps97.9%
IMR 7828 SSC<<locked>>80%42,090 psi65%2789 fps97.2%
IMR 8133 Enduron<<locked>>88%35,781 psi55%2661 fps95.2%
Lovex S071<<locked>>80%38,058 psi59%2612 fps99.1%
Norma 204<<locked>>80%54,665 psi84%2966 fps99.8%
Norma 217<<locked>>84%31,401 psi48%2559 fps95.6%
Norma MRP<<locked>>80%46,920 psi72%2887 fps99.8%
Ramshot Grand<<locked>>80%42,250 psi65%2805 fps97.6%
Ramshot Hunter<<locked>>80%54,781 psi84%2966 fps100%
Ramshot Magnum<<locked>>80%38,043 psi59%2674 fps98%
ReloadSwiss RS 14<<locked>>80%29,066 psi45%1762 fps100%
ReloadSwiss RS 76<<locked>>80%35,505 psi55%2697 fps98.2%
ReloadSwiss RS 8079.9 gr86%40,886 psi63%2792 fps95.6%
Rottweil R 904<<locked>>80%48,733 psi75%2844 fps98.7%
Rottweil R 905<<locked>>80%47,659 psi73%2854 fps99.3%
SNPE Vectan Tubal 8000<<locked>>80%47,311 psi73%2848 fps99.2%
Somchem S361<<locked>>80%49,864 psi77%2835 fps98.4%
Somchem S365<<locked>>80%53,664 psi83%2910 fps100%
Somchem S385<<locked>>80%48,124 psi74%2831 fps99.7%
Vihtavuori N165<<locked>>80%42,003 psi65%2700 fps98.7%
Vihtavuori N170<<locked>>92%53,737 psi83%2943 fps95.6%
Vihtavuori N555<<locked>>80%47,587 psi73%2835 fps100%
Vihtavuori N560<<locked>>80%46,528 psi72%2884 fps97.8%
Vihtavuori N565<<locked>>80%38,754 psi60%2694 fps95.7%
Vihtavuori N568<<locked>>86%41,916 psi64%2805 fps95.3%
Vihtavuori N57082.2 gr92%49,501 psi76%3002 fps95.7%
Winchester StaBALL HD<<locked>>80%41,234 psi63%2812 fps100%
Winchester Supreme 780<<locked>>80%44,338 psi68%2759 fps98.7%

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 54 powders for .27 Nosler loaded with the .277 | 150gr | Geco SOFTPOINT. ADI AR 2218 delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,156 fps. ADI AR 2218 gives the best case fill at 100 %, and 54 of the 54 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (448 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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. Hodgdon Retumbo, ReloadSwiss RS 80, Vihtavuori N570 rank at the top here: for .27 Nosler with the .277 | 150gr | Geco SOFTPOINT 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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