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The Firing Line Forums > Hogan"s Alley> Handguns: General Handgun Forum
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Anyone ever before mix up poor gravy (corn starch) for bullet test medium?
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December 29, 2010, 08:13 PM#1

Weather is lousy, so it is about that time of year once I carry out something worthmuch less choose test bullet performance. Gelatin is around $8/lb. Corn starch is about 80cents/lb. Somewbelow about 8/1 (water/starch) seems to make some pretty good gelatin (or extremely bad gravy
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). I was simply wondering if anyone had actually tried it and also how it worked.

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December 29, 2010, 08:22 PM#2

not sure just how it would certainly work for simulating soft tissue however at leastern it would certainly give you a baseline for comparing bulallows to one an additional. I"m not sure what the ratio is however mixing corn starch and also water creates a non-newtonian liquid and also at the prompt of affect acts even more like a solid. supposedly bulallows tend to permeate twice as far in water as they do in ballistic gel(and also therefore flesh) and that is why the nice feller at theboxotruth.com supplies gallon jugs of water.

This is a heated solution, so it thickens. When it cools it have the right to have actually the consistency of jello or thicker. I"ve tried 2/1, 4/1 and 8/1. They aren"t entirely cooled yet, however it is looking like possibly 6/1 is the appropriate mix.Might be type of a pain to pour right into molds and cool. I desire sufficient to test 5 bullets, and also I"m thinking I"ll require a fair amount for the 45/70 and 44 mag.
this sounds sort of fun. let us understand exactly how it turns out. i can offer it a try, if you have actually some decent outcomes.

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How around filling an empty plastic milk container with this stuff? I wouldn"t stand also close at moment of impact!
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The more force that is applied to a non-Newtonian fluid, the more viscous the fluid becomes. I am guessing that tbelow is a limit to the viscosity that can be completed, however I"m not sure that shooting at one is a great idea.
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