I'm trying to understand why Sig went with a 3.1" barrel and a comp for a defensive pistol, instead of just a standard 4" barrel and no comp (or even their 3.7").
My Speer GD 124 runs at 1,150 fps out of my Glock 19's 4" barrel.
Speer makes a +P rated "Short Barrel" GD 124 that runs the same 1,150 fps out of a 3.5" test barrel.
So I'm trying to figure out what is the net gain with this short barrel/comp arrangement.
Any thoughts or insights are appreciated.