You sir, need to find a copy of Cartridges of the World. It's about 600 pages of current, obsolete and wildcat cartridges.
Not sure what edition they're at but older ones are often pretty cheap and may even be available to download in PDF.
I have the 6th edition ('89), loads of cool stuff in there
That will only result in endless threads on endless topics...
Haha yes i can see it now, " is the 70-150 Winchester good for bear defense?"
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