barrel length for 357 to burn?

[isi07734]

how long does it have ot be to fully burn a 357mag? and also- is the 357sig bette rthen the 40sw?

 

[C.R.Sam]

.

 

[C.R.Sam]

First question....depends on the powder, the bullet and the neck tension. Amongst other things.

Sam

 

[Mike Irwin]

Well, fact of the matter is, NO cartridge will burn the powder completely.

 

[scotjute]

Can't say for sure the powder is completely burnt, but
my .357 20" barrelled lever action is distinctly quieter than my 6"
barrelled .357.

 

[isi07734]

ok, let me make myself clear,
im debating between a 4inch and 5inch- i know sbubs wont utilize the 357s power bc of the bbl length, but will a 4 inch? is there much a diff bw the 4 and the 5?, also- is rugers GP better the the SP in quality- or trigger action/hammer?

and what exactly is the diff bw 40sw and 357sig?
thanks chaps

 

[Mike Irwin]

I'm sincerely doubting that you'll notice any real difference in burning characteristics between the 4 and 5" barrels.

I don't notice any great difference between my 4 and 6" barreled Model 28s.

What you will get with a 5" barrel over a 4" is a slightly greater sighting radius, which can mean more precise aiming.

You'll also generally get slightly higher muzzle velocity and bullet energy with the longer barrel.

 

[Mike Irwin]

The .40 uses a heavier bullet - in the 140 to 175 gr. range, at somewhat lower velocity.

The .357 Sig uses a lighter bullet - in the 125-gr. range - at higher velocity.

The .357 Sig is a bottle necked round.

Both are good cartridges for their intended purposes.