| Joined: | Wed Apr 4th, 2012 |
| Location: | Goose Creek, South Carolina USA |
| Posts: | 418 |
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On a more serious note, I have seen numerous photos like this. I asked someone involved with artillery R&D and was told it was using an infrared trigger device. Don't know the science but something to do with gases being pushed ahead of the projectile. Can't verify any of this, just hearsay.
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Gary