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Old February 7, 2014, 05:07 PM   #2
RodTheWrench
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Join Date: April 24, 2013
Location: Utah
Posts: 365
A short answer would be "we already do that". There are lots of cartridges (the primer, case, gunpowder and bullet together) that do essentially that - same bullet size in diameter and weight - but vastly different case(bottle) sizes and powder charges. Two extremes of this example could be .223 and .22-250. Massively different case sizes and powder loads, massively different performance out of the barrel with essentially the same bullet (cork).

One of the big things to consider is, one size(diameter/weight) of bullet isn't ideal for all situations. a small bullet going REALLY fast doesn't do what needs done to take down large game - think African Cape Buffalo. They require a much, much bigger (diameter/weight) bullet with a much different case to handle it and the pressures needed to get that size of bullet moving properly down the barrel so the bullet can do it's job.

There are myriad answers to your question, but these 2 will start things for you. There's also the notion of personal preference and the need to "mess with things" in there too, but I'll leave things be. For now.
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