475 Conical, 0.15 HP
08-11-2017, 11:54 AM
#1
Nontypical Buck
Thread Starter
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
475 Conical, 0.15 HP
Rick sent more bullets to catch. These have a 0.15" hollow point instead of 0.125 hollow point.
The trap consists of carpet glued to 3/8" plywood, then six water jugs, then a thick phone book.
The range to the trap is/was 25 yard. First we tried to catch the bullet shot by a powder load of 50 grain Blackhorn. The bullet' speed at 25 yard impact was about 981 fps. The bullet went completely through the trap; wasn't caught. The bullet was found on the ground behind the horse, and wasn't deformed very much. Then the powder charge was increased to 64 grain Blackhorn, which produced a speed at 25 yard of about 1168 fps. This bullet was caught in the fourth water jug, and was nicely mushroomed.
Impact Photo
50 grain Blackhorn
64 grain Blackhorn
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The trap consists of carpet glued to 3/8" plywood, then six water jugs, then a thick phone book.
The range to the trap is/was 25 yard. First we tried to catch the bullet shot by a powder load of 50 grain Blackhorn. The bullet' speed at 25 yard impact was about 981 fps. The bullet went completely through the trap; wasn't caught. The bullet was found on the ground behind the horse, and wasn't deformed very much. Then the powder charge was increased to 64 grain Blackhorn, which produced a speed at 25 yard of about 1168 fps. This bullet was caught in the fourth water jug, and was nicely mushroomed.
Impact Photo
50 grain Blackhorn
64 grain Blackhorn
__
08-11-2017, 12:36 PM
#2
Typical Buck
Join Date: Apr 2017
Posts: 995
ronlaughlin, is he drilling those cavities or using a straight pin in the mold? I ask because I was told a long time ago that a cavity without some taper won't function well. And with those being pure lead bullets I am seeing that in evidence. A pure lead bullet with a hollow point should easily open at 980+fps. Especially with that much weight in it.
