Great imagery of sabot petal separation after leaving barrel, here on one of Denmark's new Leopard 2A7DNK. Taken from this cracking video with lovely slow-mo of this firing @ 2m10s onwards https://bit.ly/2YsKamF 

Fuller stepped sequence showing separation as well as both the blast and the shockwave marginally ahead of it.

Someone mentioned on the Merkava post about blast effects around a tank firing, which this shows some of nicely. Also bear in mind those sabot petals in prior shots weight several kilos collectively, and are tumbling uncontrolled at significant velocity, significant danger area

Denmark is getting 44 2A7DNK by 2022, they currenly have 57 2A5DK and 6 2A4 for training. Although it doesnt marry with standard Danish designations which use DK appendix, the service has repeatedly stated 2A7DNK as the designation for these vehicles, to my enduring consternation