You will definitely need a new barrel.
Start with a six inch factory hunting barrel, then one for 40S&W,(not really necessary) then 357Sig and finally, 9x25 Dillon. Lone Wolf even makes a 9mm conversion barrel.
Start with a six inch factory hunting barrel, then one for 40S&W,(not really necessary) then 357Sig and finally, 9x25 Dillon. Lone Wolf even makes a 9mm conversion barrel.

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