A few more 20mm projectiles

[Shell Shifter]

I came across another couple of 20mm projectiles. Seems I am assembling a collection in spite of myself.

The thing of interest is the rightmost item. Note that the base is sealed with a plug that screws in and then has a flange butted over it. I came across an impact 22mm projectile that sorta looked like this. I am wondering if it is a practice round. Any ideas?

 

[Falcon]

You are right that the hollow projectile with the plug is a practise round. These projectiles are very common here in the UK.

 

[Shell Shifter]

Imagine that. Never saw one before. Thanks.

Wonder why they didn't just use solid rounds, the one I have must have been relatively expensive to make.

 

[Falcon]

The practise rounds were designed to match the weight of the live HE round. A solid steel round would be heavier and therefore have a different trajectory.