APFSDS rounds

A place for general potato gun questions and discussion.
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SpudFarm
First Sergeant 3
First Sergeant 3
Posts: 2571
Joined: Sat Nov 04, 2006 9:39 am
Location: Norway Trondheim area

well time will show the velocety..

i have a aluminuim cored 400g lead slug i will send on 30" of wood
"Made in France"
- A spud gun insurance.
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Coodude26
Specialist
Specialist
United States of America
Posts: 167
Joined: Sun Apr 20, 2008 1:03 pm

When do you plan on doing this? Soon? :D I really wanna see it, even bad camera would be nice...If its too much of a nuisance don't bother
Plumbers have a funny definition of half an inch...
chinnerz wrote:once my and one of my mates spent a whole day modding a nurf pistol.... it ended up shooting 1 extra meter and had an awesome paint job. (not rly worth it)
/\why I don't like Nerf...
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SpudFarm
First Sergeant 3
First Sergeant 3
Posts: 2571
Joined: Sat Nov 04, 2006 9:39 am
Location: Norway Trondheim area

i took the boring job to cut a 1/2" steel plate with a angel grinder today so i am going to weld them tougether so i get a 1" plate to shoot on.

i am just done with the western union registration and when i get the money (soon) i will get the man to send me the union so i can go to 11x
"Made in France"
- A spud gun insurance.
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DYI
First Sergeant 5
First Sergeant 5
Antigua & Barbuda
Posts: 2862
Joined: Sat Jul 07, 2007 8:18 pm
Location: Here and there

That of course implies that we trust HGDT
Did Larda ever mention in his thread that, even in the 1km/s muzzle speed range, the HGDT outputs were accurate to better than a +/- 10% margin of error? That program is more accurate than most people give it credit to be, if you really know your input parameters. Considering that it has that kind of accuracy at over 100x, the 11x numbers, which aren't even trans-sonic in the propellant gas, should be pretty good.

I'd venture to guess that it's almost as accurate as GGDT.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
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Ragnarok
Captain
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Posts: 5401
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK

DYI wrote:I'd venture to guess that it's almost as accurate as GGDT.
I don't doubt that given D_Hall's experience and knowledge, it should be good, but where I've been able to assess GGDT myself with my homemade chronies(it's usually within 5% or so), as I've never built a hybrid myself (and when I do, it'll not fit to all the normal parameters of hybrid) I've not had the chance to assess HGDT for myself.
Does that thing kinda look like a big cat to you?
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