WB mentioned 480 Achilles Load Data

Jim Taylor
[subject]
Sunday, May 04, 2025, 15:30 (13 days ago)

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Huffaker 290 gr. hollow-base heel bullet -Right is a fired and recovered bullet showing heel expanded

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Left - original Bittern Bullet 290 gr. heel bullet
Right - Killebrew 290 gr. heel bullet with crimp groove

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Huffaker Bullet

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Killebrew Bullet

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Original Bittner Bullet

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Sika Doe taken with 480 Achilles using Bittner Bullet and 12 gr. 2400

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

A treasure of information on a legend.

WB
[subject]
Monday, May 05, 2025, 08:04 (12 days ago) @ Jim Taylor

I'm saving that post for sure. I have thoughts of having a 3.5-4" made up with a birds-head grip. What fun.

You mentioned they will also manage soft lead .45 Colts for short range?! I bet the hollow base cowboy loads upset to fill the .480 bore. Just like the .386" .41 Long Colts in that .403" bore.

Yeah ... they work pretty well.

Jim Taylor
[subject]
Monday, May 05, 2025, 08:56 (12 days ago) @ WB

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