480 Achilles Load Data
All loads use CCI Large Pistol Primers
All loads with the Bittner 480-290-FNH bullet (290 gr. heel bullet)
All fired from 7 ½” barrel
7 feet from muzzle to first screen
All velocities are averages
Black Powder
· 21.0 gr. FFg DuPont - 643 fps (these were VERY consistent)
WW 231
· 6.0 gr. 231 = 794 fps
Bullseye
· 5.0 gr. Bullseye = 717 fps
· 6.0 gr. Bullseye = 883 fps
700X
· 6.0 gr. 700X = 906 fps
Unique
· 6.1 gr. Unique = 798 fps
· 6.5 gr. Unique = 848 fps
· 7.0 gr. Unique = 911 fps
2400
· 12.0 gr. 2400 = 870 fps (accurate load)
· 12.5 gr. 2400 = 885 fps
· 13.0 gr. 2400 = 950 fps (accurate load)
WC820 (military surplus H110)
· 15.5 gr. WC820 = 883 fps
· 16.0 gr. WC820 = 955 fps
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All loads with CCI Large Pistol Primers
All loads with Huffaker Bullet 290 gr. RNHBH (Round Nose Hollow Base Heel)
Cases .900” OAL
All fired from 7 ½” barrel revolver
7 feet from muzzle to first screen
All velocities are averages
Black Powder
· 24 gr. FFg – 737 fps
Bullseye
· 5.0 gr. – 808 fps
· 6.0 gr. – 871 fps
Unique
· 6.5 gr. – 808 fps
· 7.0 gr. – 850 fps
2400
· 12.0 gr. – 819 fps
· 12.5 gr. – 883 fps
DATA FROM JOHN KILLEBREW
480 data from John Killlebrew.JPG
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