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Posted: Mon May 14, 2012 3:40 pm
by MrCrowley
This thread kind of turned in to a haven for Hybridists; I'm not complaining either

Posted: Mon May 14, 2012 4:08 pm
by Petitlu
the thread of 50 pages are not frequent?
Posted: Mon May 14, 2012 4:39 pm
by MrCrowley
Not for a topic about a single cannon

Posted: Mon May 14, 2012 4:48 pm
by Petitlu
ok!
'm flattered!
I hope you soon shoot your new art work Jack!

Posted: Mon May 14, 2012 11:16 pm
by jackssmirkingrevenge
Petitlu wrote:I hope you soon shoot your new art work Jack!
Just have to make the delrin sabot, it should be on its way to you some time this week

please don't blow your collar bone off in the meantime!
Posted: Tue May 15, 2012 1:26 am
by Petitlu
Excellent!
For shooting must be a good preparation, I will make a camera position diagrams, I can put 3.
I have no right to be wrong ...
Posted: Tue May 15, 2012 1:52 am
by jackssmirkingrevenge
Definitely, you only get one chance at this
By the way, how about some shotgun sabots? It would be nice to see some more buckshot rounds... but for science this time

Posted: Tue May 15, 2012 2:08 am
by Petitlu
define exactly what it will shot, but the mix40 necessarily target material (profile?), camera angles ...
I will change the brake discs in my car, they are very thick and heavy, they could also serve as a target ...
Posted: Tue May 15, 2012 2:10 am
by jackssmirkingrevenge
Posted: Tue May 15, 2012 2:24 am
by Petitlu
tungsten could cross the entire disc ?
Posted: Tue May 15, 2012 2:35 am
by jackssmirkingrevenge
Petitlu wrote:tungsten could cross the entire disc ?
Only one way to find out
By the way, do you have access to smaller ball bearings than 8mm? Maybe 4.5mm bearings from BB guns?
Oh and look what I found!
http://www.ebay.com/itm/1-16-oz-Active- ... 1c08ba6b79
Ready pointed tungsten cores!
edit: you can get "bullet" shapes as well:
http://cgi.ebay.fr/1-4-oz-Zappu-Tungste ... 1c08ba7a3f
Posted: Tue May 15, 2012 3:07 am
by Petitlu
the smallest that I currently have is the 6mm
the 4.5mm can also be purchased ...
I had seen these tungsten insert for fishing but not knowing the diameter, I have not bought ...
Posted: Tue May 15, 2012 3:31 am
by jackssmirkingrevenge
Petitlu wrote:the smallest that I currently have is the 6mm
the 4.5mm can also be purchased ...
6mm is good, I'll make you some decent cup sabots too
I had seen these tungsten insert for fishing but not knowing the diameter, I have not bought ...
I just bought some of these:
They weigh 1.8 grams, so considering the density of tungsten and the dimensions from the picture I would say they are about 2.5mm diameter and 18.5mm long, quite tiny compared to what you've been using.
Something local:
http://www.peche-leurre-evolution.com/a ... ,2150.html
Posted: Tue May 15, 2012 4:49 am
by Petitlu
Thank you!
The 6mm is for discs?
the 7/64 oz are 3g, are they any better?
Posted: Tue May 15, 2012 5:36 am
by jackssmirkingrevenge
Petitlu wrote:Thank you!
The 6mm is for discs?
Eh?
I will make "cup" sabots so you can shoot multiple steel balls, proper buckshot style
the 7/64 oz are 3g, are they any better?
This one?
I've seen references to 18.2 g/cm<sup>3</sup> density. so that gives dimensions of about 2.6mm diameter and 28mm length, certainly these would not be as effective as the rods you're currently using - though technically they would fly out much faster.
As we've seen however, it's better to rely on slightly less velocity and more mass in order to avoid the projectile shattering.
On another note, have you ever heard of the "Blondeau" slug (
balle Blondeau)?
The tail is not hollow, but apparently due to the shape it flies reasonably straight...
