I am looking for a book recommendation.
What I am really keen to get my head round and understand is what makes some calibres more ballistic efficient than others.
So for instance, .243 Win v’s 6.5x47L – the 6.5 is pushing a larger, boarder, heavier head from a smaller cartridge, with less powder, lower recoil and yet, it has greater long range accuracy, less affected by the wind and it is reputed to have the equivalent of .300 Win Mag ballistics. How is that possible, why is that possible
Also….. Why is it some calibres produce greater "perceived" knock down power over other very similar rival calibres.
Let me know your thoughts...