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  #113  
Old 29-09-2013
aido_3927  aido_3927 is offline
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And that 1200fps muzzle velocity must be from a black powder musket lol.
Haha not quite, that's just standard velocity. Subsonics are under 1000 and hyper velocity are nearly 1300fps. Funnily enough, blackpowder rifles will be around that or higher.
  #114  
Old 29-09-2013
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GariJ  GariJ is offline
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Haha not quite, that's just standard velocity. Subsonics are under 1000 and hyper velocity are nearly 1300fps. Funnily enough, blackpowder rifles will be around that or higher.
Didnt think of that. Now I think on it I guess most hand guns are below 1000 fps. Just googled rifle velocity and some highpowered snipers rifles go up to 4000fps. SWEET JESUS.
  #115  
Old 29-09-2013
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Dustbowl just want to say thanks for a cracker of a thread. Good fun and learnt a few things.
  #116  
Old 29-09-2013
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theMISSIONARY  theMISSIONARY is offline
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Originally Posted by Rock God View Post
Here you go AR15 mount for your JK.

i could be wrong but that looks like a Sig SIG556
  #117  
Old 29-09-2013
aido_3927  aido_3927 is offline
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Didnt think of that. Now I think on it I guess most hand guns are below 1000 fps. Just googled rifle velocity and some highpowered snipers rifles go up to 4000fps. SWEET JESUS.
Yeah my .223 sends them down at a bit over 3000fps, smacks the shit out of bunnies and foxes! And it's pretty much just a centerfire .22 lol

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i could be wrong but that looks like a Sig SIG556
Sorry, you're wrong mate, it's an AK-47.

  #118  
Old 29-09-2013
carvesdodo  carvesdodo is offline
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hmm i had a full auto licence in Tasmania prior to 1996 the only place you could use them was on a designated range eg Pontville

Bren, uzi ,mini 14 converted.......all handed in and all full auto....not semi's

My apologies for including you taswegions, in "our", pre '96, australian, firearm regulations .. ..



.... and this I think - is the winning post ...


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  #119  
Old 29-09-2013
Wombat756  Wombat756 is offline
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Okay cut me some slack here it’s been a while since my first year physics but here goes.
There are a lot of variables here so I will simply look at the kinetic energy likey you asked. And I didn’t conveniently exclude it I just assumed everyone would be thinking along the same lines.
So removing penetration rates as these can’t be compared.
Lets assume the aqrrow weighs 30g arrow travels around 80ms (rough conversions)
The bullet 5g around 950ms? (rough conversions)
KE=1/2MV2
So the arrow .015 * 6400= 96J
The bullet .0025 * 902500= 2256J
So you can see again not even comparable.
The equation for kinetic energy is directly proportional to the square of its speed.
For a four fold increase in speed you get a sixteen fold increase in kinetic energy.
I bow to superior mathematics . My argument was mainly centered around game species, I would never think of even pointing my .223 at a deer, no matter what range, let alone my .22.
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