If you could shoot a lead Diabolo pellet at 1400FPS, what would be the factors that would cause it to destabilize?

[SkeeterHawk]

This should (hopefully) be a fun question for the group:

If you could shoot a lead Diabolo pellet at 1400FPS, what would be the factors that would cause it to destabilize?​

• Would the blast of air required to get it to that velocity deform the skirt against the barrel?
• Would the "dirty air" coming out behind the pellet flip it over?
• Would the rifeling be too fast regardless such that the pellet wouldn't spin, but just get torn up on the way down the barrel?
  • Would a smooth-twist barrel fix that issue?
  • Badger5th suspects that the head of the pellet may get blown off and leave the skirt in the breech
• Would the increased barrel-whip be the nail-in-the-coffin?
• The BC would be jacked up and cause the pellet to get into trans-sonic soon after firing (Scotchmo's contribution and "hurrumphed" by others)
• Increased Gyroscopic Effect if the pellet engages the rifeling (Dizzums contribution)
• What am I missing?

 

[badger5th]

Since we all know that the skirt would be the problem, my favorite thing to happen was from @badger5th when theorizing that the head would completely separate from the skirt, and the skirt would be left in the breech. That's awesome!

FWIW that actually happend with our muzzleloading cannon. We shoot a 3-inch caliber lead semi-wadcutter with a deep hollow base just like a minie ball. One time the lead skirt tore off when we fired the gun and got stuck in the breach. Was holy hell fishing the ring of lead out. That's why I thought of the pellet skirt issue.

 

[SkeeterHawk]

that actually happend

OMG! I can't imagine with a 3" projectile! I hope that everyone was OK and that there isn't a morbid back-story here.

The softness of the lead was what I thought was the major problem here. I have had a gazillion JSB's that couldn't make it out of the tin, let alone through a barrel at super-sonic pressures.

 

[MEC17670]

I really think 1400fps is counter-productive, sounds like a fire-breather cross over.
Even .22 caliber bench rest guys shoot sub-sonic rounds.