I have 30-30 ammo with a pointy tip, it is loaded in a single shot 30-30. Put it in a tube magazine and you could possibly set off the other rounds.
I can not remember the exact term used, but it is something to do with the lowest common denominator allowing you to sell more.
In this case, .22 bullets, 30-30 bullets, etc. There are specialty rounds out there and available, but you will not very likely find them on the shelves of your local sporting goods store. Why should they stock something that one in a million customers might purchase?
The 30-30 and .308 and most cartridges in between take the same size bullet. If you reload, you can change bullets to the shape you desire for the performance you desire.
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