.22 S,L,LR have heeled bullets. The whole cartridge has the same diameter to the ogive before it dips at the shoulder. .22 WMR have bullets seated in the case which is why LR shouldn't be fired in a magnum.
https://youtu.be/AA9gyYbhG7I
https://youtu.be/2G2e9jlU1h0
42.4 Hertz :):
https://youtu.be/ZCkHanF4v1w
- - - Updated - - -
Holy shit!! Forgot about this!! The above tune was of course a gag. Then this?! The Universe man... WTF:
https://youtu.be/0y4cyn6QMPI