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Post questions and info about things you have launched or thought about launching. No posts about explosive projectiles!

Postby Numbuh 16 » Sun Feb 11, 2007 12:44 am

I wouldnt bother with rifling a barrel of that diamiter. It would be quite difficult. I would go with a sabot as well, very nice concept.
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Postby Suppresive Fire » Sun Feb 11, 2007 4:46 pm

the rifling would provide projectile stability and allow the use of a normally unstabe projectile. Take a bullet for example. Without rifling it would tumble through the air and be inaccurate and lose energy. The rifling allows a long, heavy, kinetic energy penetrator to be stable in flight and have maximum energy transferance to the target.
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Postby fullmetaljacket » Sun Feb 11, 2007 10:35 pm

<blockquote id="quote"><font size="1" face="tahoma,verdana,arial" id="quote">quote:<hr height="1" noshade id="quote">the rifling would provide projectile stability and allow the use of a normally unstabe projectile. Take a bullet for example. Without rifling it would tumble through the air and be inaccurate and lose energy. The rifling allows a long, heavy, kinetic energy penetrator to be stable in flight and have maximum energy transferance to the target.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

True, however launching a subcaliber fin-stabilised dart would give the sabot+projectile unit a lower overall weight than a full caliber projectile, meaning a higher muzzle velocity. The small diameter and high sectional density of the dart compared to the full caliber would also mean that it would fly through the air more efficiently, losing less velocity per travelled distance, and in the same way would be much more effective at piercing the target.
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Postby Suppresive Fire » Mon Feb 12, 2007 3:36 pm

If fin stabilized it would work. But a non-fin stabilized round can be prone to tumbling without rifling of some sort.
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