Think of 38 super like the difference between 38 special and 357 mag Micky Duck.
On any given day a 38 super will give around 200+ fps on a standard 9mm using the same projectile.
38 super is the go to round for IPSC open shooters.
So reaming out a barrel from 9mm to 38 super would be no different to reaming a 7mm08 to 284win or a 308 to a 30 06
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