.300 Whisper / .300 AAC Blackout / .300 Blackout (Using 178/180 GR Hornady Bullets) Load Data

42 published .300 Whisper / .300 AAC Blackout / .300 Blackout (Using 178/180 GR Hornady Bullets) reloading recipes across 11 powders and 1 bullet manufacturers, with bullet weights from 180 to 180 grains and recorded velocities between 1,137 and 1,742 fps. Every load lists charge weight, velocity, COAL, primer and case where the source published it.

Always begin at the minimum charge weight and work up gradually. Never exceed maximum loads. Verify all data against a current published reloading manual before use. LoadDevelopment.com is not responsible for errors or omissions in this data.
Recipes
42
Powders
11
Bullet makers
1
Bullet weights
180–180 gr

Sample .300 Whisper / .300 AAC Blackout / .300 Blackout (Using 178/180 GR Hornady Bullets) loads

The first 5 of 42 recipes.

BulletPowderChargeVelocityCOALPrimer
Hornady Hornady 180grAlliant 240010.9 gr1409 fps——
Hornady Hornady 180grAlliant 24009.9 gr1288 fps——
Hornady Hornady 180grAlliant 240011.9 gr1530 fps——
Hornady Hornady 180grAccurate AAC-168014.6 gr1425 fps——
Hornady Hornady 180grAccurate AAC-168013.4 gr1333 fps——

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