Load data for .28 Nosler + .284 | 175gr | A-Square MONO RN

.28 Nosler cartridge drawing
A-Square logo

Load Specifications

Bullet Manufacturer:A-Square
Bullet Weight:175 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.59"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:97 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:16.5

Load data in caliber .28 Nosler with .284 | 175gr | A-Square MONO RN bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Alliant Reloder-33 and Hodgdon Retumbo.

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>>86%55,274 psi85%2776 fps100%
Accurate MAGPRO<<locked>>86%58,088 psi89%2940 fps99.6%
ADI AR 2209<<locked>>84%56,347 psi87%2858 fps100%
ADI AR 2213<<locked>>88%58,740 psi90%2933 fps100%
ADI AR 2217<<locked>>96%57,522 psi88%2917 fps100%
ADI AR 2218ᴾ<<locked>>100%57,812 psi89%3038 fps98.9%
ADI AR 2225<<locked>>98%56,623 psi87%2936 fps100%
Alliant Reloder-19<<locked>>84%55,956 psi86%2848 fps100%
Alliant Reloder-22<<locked>>86%55,419 psi85%2871 fps100%
Alliant Reloder-23<<locked>>88%57,392 psi88%2831 fps100%
Alliant Reloder-25<<locked>>92%57,812 psi89%2907 fps100%
Alliant Reloder-26<<locked>>84%58,247 psi90%2920 fps100%
Alliant Reloder-33<<locked>>96%55,593 psi86%2949 fps98.3%
Alliant Reloder-50ᴾ<<locked>>100%55,230 psi85%2936 fps97.7%
Baschieri & Pellagri 109<<locked>>88%55,332 psi85%2838 fps98.4%
Bofors RP15<<locked>>90%58,552 psi90%2917 fps100%
Bofors RP30<<locked>>94%57,493 psi88%2927 fps100%
Bofors RP5<<locked>>86%55,419 psi85%2871 fps100%
Hodgdon H1000<<locked>>92%55,216 psi85%2877 fps100%
Hodgdon H4831<<locked>>86%57,696 psi89%2867 fps99.7%
Hodgdon H4831 SC<<locked>>86%56,594 psi87%2851 fps99.7%
Hodgdon Hybrid 100V<<locked>>82%56,681 psi87%2762 fps100%
Hodgdon Retumbo<<locked>>92%57,000 psi88%2995 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,797 psi58%1804 fps100%
IMR 4350<<locked>>82%58,392 psi90%2828 fps100%
IMR 4955 Enduron<<locked>>86%57,812 psi89%2841 fps99.8%
IMR 7828 SSC<<locked>>88%57,159 psi88%2917 fps99.9%
IMR 8133 Enduronᴾ<<locked>>100%55,608 psi86%2917 fps99.9%
Lovex S071<<locked>>92%57,043 psi88%2802 fps100%
Norma 217ᴾ<<locked>>100%56,797 psi87%2936 fps100%
Norma MRP<<locked>>84%55,492 psi85%2884 fps100%
Ramshot Grand<<locked>>88%58,668 psi90%2943 fps100%
Ramshot Magnum<<locked>>90%56,855 psi87%2871 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,899 psi60%1850 fps100%
ReloadSwiss RS 76<<locked>>92%57,769 psi89%2982 fps100%
ReloadSwiss RS 80<<locked>>94%57,072 psi88%2956 fps99.6%
Rottweil R 904<<locked>>84%56,826 psi87%2828 fps99.9%
Rottweil R 905<<locked>>84%55,898 psi86%2844 fps100%
SNPE Vectan Tubal 8000<<locked>>84%55,521 psi85%2838 fps100%
Somchem S361<<locked>>84%58,218 psi90%2825 fps99.8%
Somchem S385<<locked>>84%56,101 psi86%2812 fps100%
Vihtavuori N165<<locked>>88%56,043 psi86%2799 fps100%
Vihtavuori N170<<locked>>92%55,100 psi85%2825 fps96.7%
Vihtavuori N555<<locked>>84%55,564 psi85%2808 fps100%
Vihtavuori N560<<locked>>84%54,897 psi84%2887 fps99.6%
Vihtavuori N565<<locked>>90%55,999 psi86%2884 fps99.8%
Vihtavuori N568<<locked>>94%57,493 psi88%2956 fps99.4%
Vihtavuori N570<<locked>>96%58,784 psi90%3018 fps98.5%
Winchester StaBALL HD<<locked>>88%57,769 psi89%2920 fps100%
Winchester Supreme 780<<locked>>86%55,883 psi86%2812 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%45,310 psi70%2618 fps100%
Accurate MAGPRO<<locked>>80%47,123 psi72%2749 fps98.1%
ADI AR 2209<<locked>>80%49,313 psi76%2743 fps99.7%
ADI AR 2213<<locked>>80%44,527 psi69%2690 fps98.5%
ADI AR 2217<<locked>>80%33,344 psi51%2438 fps95.2%
ADI AR 2218<<locked>>94%46,485 psi72%2822 fps96.1%
ADI AR 2225<<locked>>80%30,661 psi47%2408 fps97.3%
Alliant Reloder-19<<locked>>80%49,197 psi76%2736 fps99.7%
Alliant Reloder-22<<locked>>80%45,281 psi70%2694 fps99.4%
Alliant Reloder-23<<locked>>80%44,135 psi68%2631 fps100%
Alliant Reloder-25<<locked>>80%38,305 psi59%2575 fps99.9%
Alliant Reloder-26<<locked>>80%50,227 psi77%2799 fps100%
Alliant Reloder-3383 gr90%44,541 psi69%2746 fps95.5%
Alliant Reloder-50<<locked>>96%47,790 psi74%2802 fps95.9%
Baschieri & Pellagri 109<<locked>>80%42,728 psi66%2605 fps95.3%
Bofors RP15<<locked>>80%42,322 psi65%2635 fps98.8%
Bofors RP30<<locked>>80%35,824 psi55%2513 fps96.4%
Bofors RP5<<locked>>80%45,281 psi70%2694 fps99.4%
Hodgdon H1000<<locked>>80%36,230 psi56%2516 fps97.2%
Hodgdon H4831<<locked>>80%47,123 psi72%2690 fps98.5%
Hodgdon H4831 SC<<locked>>80%46,195 psi71%2674 fps98.3%
Hodgdon Hybrid 100V<<locked>>80%53,272 psi82%2717 fps100%
Hodgdon Retumbo68.4 gr80%37,521 psi58%2625 fps98.6%
Hodgdon TrailBoss<<locked>>80%28,442 psi44%1614 fps100%
IMR 4350<<locked>>80%54,824 psi84%2776 fps100%
IMR 4955 Enduron<<locked>>80%47,848 psi74%2677 fps98.7%
IMR 7828 SSC<<locked>>80%43,395 psi67%2674 fps98.3%
IMR 8133 Enduron<<locked>>86%34,592 psi53%2503 fps95.7%
Lovex S071<<locked>>80%39,131 psi60%2497 fps99.7%
Norma 217<<locked>>80%28,427 psi44%2349 fps95.1%
Norma MRP<<locked>>80%48,385 psi74%2766 fps100%
Ramshot Grand<<locked>>80%43,758 psi67%2690 fps98.7%
Ramshot Magnum<<locked>>80%39,363 psi61%2569 fps99%
ReloadSwiss RS 14<<locked>>80%29,312 psi45%1657 fps100%
ReloadSwiss RS 76<<locked>>80%36,767 psi57%2598 fps99.2%
ReloadSwiss RS 80<<locked>>84%39,276 psi60%2621 fps96%
Rottweil R 904<<locked>>80%49,922 psi77%2717 fps99.3%
Rottweil R 905<<locked>>80%48,965 psi75%2730 fps99.8%
SNPE Vectan Tubal 8000<<locked>>80%48,617 psi75%2726 fps99.7%
Somchem S361<<locked>>80%50,894 psi78%2710 fps99.1%
Somchem S385<<locked>>80%49,197 psi76%2700 fps100%
Vihtavuori N165<<locked>>80%43,178 psi66%2585 fps99.4%
Vihtavuori N170<<locked>>88%48,269 psi74%2703 fps95%
Vihtavuori N555<<locked>>80%48,950 psi75%2707 fps100%
Vihtavuori N560<<locked>>80%47,950 psi74%2766 fps98.7%
Vihtavuori N565<<locked>>80%39,856 psi61%2585 fps97%
Vihtavuori N568<<locked>>84%40,379 psi62%2635 fps95.8%
Vihtavuori N57078.1 gr88%44,382 psi68%2756 fps95%
Winchester StaBALL HD<<locked>>80%42,917 psi66%2694 fps100%
Winchester Supreme 780<<locked>>80%45,556 psi70%2638 fps99.4%

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 50 powders for .28 Nosler loaded with the .284 | 175gr | A-Square MONO RN. ADI AR 2218 delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,038 fps. ADI AR 2218 gives the best case fill at 100 %, and 50 of the 50 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 175.0 gr projectile in 0.284" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, Alliant Reloder-50, Hodgdon TrailBoss 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. Vihtavuori N570, Alliant Reloder-33, Hodgdon Retumbo rank at the top here: for .28 Nosler with the .284 | 175gr | A-Square MONO RN 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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