I am planning to build a 16" 357 mag bbl for my savage switch barrel setup for my son as a plinker that will double as a fun barrel for knocking down silhouettes. while looking for a cheap blank I noticed that the green mountain 9mm barrel is only $35 while their .357 blank is closer to $100. I know this is still cheap but $35 sounds much better for what we'll be doing with it. I considered just doing a 9mm but I already have a bolt face for the .357 and would have to get a .223 bolt face for the 9mm. I also like the extra knock down power of the 180 gr .357 mag. So my question to you is do any of you know of a cheap barrel blank supplier that fits my needs? Blanks would need to be 1.15" or thicker for my receiver.