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Anyone ever build a .357 Sig 1911? I've never ran across one but the concept is very interesting.

I've got a Colt Delta with a .357 Sig Bar-sto barrel in it. Use 40 cal mags, and you're set.

It delivers 125s at 1,400 fps, which is do-able in a Super, albeit not with factory ammo.

I can see doing a two or three caliber build, 10mm, 40 & .357 Sig, as a gunsmith graduation proof.

I'm glad you identified a barrel maker that makes it, I looked a Schumman barrels and non were on their site. 357 magnam performance with a fast loading and higher capacity of a 1911 ...

Any reason to not build a 9x23 Winchester instead of a .357 SIG?

The only advantage that I can see for the SIG is the easier factory ammo availability. The 9x23 has all of the other advantages, including the ability to use heavier bullets (147-grain is not available in the SIG), a nice OAL for the 1911, no need for a bottleneck, and much stronger brass. Winchester does chamber 124/125-grain bullets at 1450 fps in factory ammo if one does not load.

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Scott

I was going to mention that Sweeney's 1911 book covers a .357 Sig setup. I see he's already responded with the pertinent info.

I was thinking the 9x23 would offer an extra round in the magazine, but I may be mistaken. Other than that, I think I concluded the 9x23 was more interesting to me.

-Matt

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"If it has breasts or a motor, you're gonna have trouble with it."

Just to throw something else in the mix. Rumor has it that Springfield is going to offer the EMP in 40cal. Whether that is true or not I'm not sure but that would make an interesting 357sig. I also heard they are going to offer the EMP with a 4" barrel.

With the prices of 357 Sig ammo, I would just as soon have 10mm with the same velocity, a heavier bullet, and a larger diameter. It is a good thought though.

Actually, S&B offers a 147 grain load in .357 Sig.

ranburr

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ranburr

I did not know that. Interesting.

According to the S&B web site, S&B offers a 140-grain load, not a 147-grain load. The link is http://www.sellier-bellot.cz/pistol-and ... roduct=180

That load has a muzzle velocity of 412 m/s or 1350 fps out of a five-inch barrel, which is slower than my 147-grain load at 1400 fps. Still it is an impressive loading for the .357 SIG.

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Scott

I have an Ed Brown two tone class A bobtail commander in 357 sig. It is a little bit tweaky - it'll run but I have to long load the rounds (about .010 over spec) and the mag springs have to be fresh. I have yet to find a commercially available hollowpoint round that runs reliably in this gun.

357 sig can be made to run in a 1911 but in my view there are better choices for launching a 9mm bullet. 38 super and 9x23 are the right length for the action to cycle right, and you get more magazine capacity.

357 sig's ballistic sweet spot is 124 gr (I get around 1350 fps easily from the commander sized gun). 147's aren't up to the same velocities as 38 super and 9x23 can reach.

I reload it but it's definitely not a beginners round. Again, 38 super or 9x23 are much more easy to reload.

I can get 38 super to 1450 or even 1500 with a 124 and VV N105 in a fullsize 1911. I run AA#7 in the 357 sig with Hornady 124 gr flatpoints.

I wouldn't carry this gun. But it sure gets attention at the range Lots of blast and if you're shooting steel people figure out it's a fast round quick. And it's accurate. Not much recoil either. But blast will give you a flinch maybe faster than hard recoil.

Brown won't build in 357 sig anymore. I called them and asked about converting to 10mm and they weren't interested in the project. Might do it myself at some point.

Thanks for the info...still like the concept though...I'm strange that way..things just have to be a little different from the norm

i help out another smith and we built a 357 sig 1911 just last month for a customer, and it was a bit finicky but shot well and was accurate as said earlier by someone else, but i also would not carry the gun daily, as there are better choices for cc, but it was a nice shooting pistol and i wouldnt mind building another for myself just to have, but go with what you will be happy with, i have personally built a couple of 40 cal 1911's and really enjoyed them.

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Kandros Customs Gunworks
www.kandroscustoms.com

Just getting started on one.