357 Sig conversion question

boxcoach

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I just bought a Sig P226, in 40 calibre. I'm thinking, I might as well have the option to shoot 357 Sig. Do I need any parts, other than a new barrel? What's my best barrel option, and who's the best source? Thanks.
 
The .357 Sig is basically a .40 cartridge necked down to 9mm. 9mm is half the price of Sig .357 ammo so the investment in the Sig barrel may be better spent on a 9mm gun IMHO.
 
howasan- After a little research, I have to agree with you. The barrel alone is $300. I traded my 45 for the Sig to save on ammo, then had a brainwave to shoot one of the more expensive calibres out there. Thanks for the common sense advice.
 
Whoa, hang on. I though .357Sig was one of the cheapest? Cop brass in .40S&W is nickles a bucket at your local range. 9mm lead is the cheapest available. Reloading this stuff is as cheap as 9mm with more punch, no? What am I missing? (Yah you use a bit more powder, but not *that* much)
 
Whoa, hang on. I though .357Sig was one of the cheapest? Cop brass in .40S&W is nickles a bucket at your local range. 9mm lead is the cheapest available. Reloading this stuff is as cheap as 9mm with more punch, no? What am I missing? (Yah you use a bit more powder, but not *that* much)

The short neck of 357 sig requires a bullet profile not common for 9mm luger ammo. If you can find a source of cheap 357 sig compatible projectiles, it's pretty much the same price as 9mm.
 
didn't list it in the EE but I can sell a factory sig 357 barrel with a few boxes of ammo for $225, a bargain for someone, don't need it as 9mm is good enough for me.
 
To reload .357 SIG, you need to either lube your cases or buy the very expensive (more than double the price of other die sets) Dillon carbide sizing die. I don't think it's worth it for what is basically a 9mm with more recoil and muzzle blast that is more picky about bullet profile.
 
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