[Nicefish]

At the risk of sounding petty (maybe too late for that)... Minimum barrel length for taking advantage of +p ammo reportedly is 4 inches. My p320 compact length is 3.9 inches. Does anyone know why Sig went with this odd size and is that .1 inch significant regarding +p? Thanks.

 

[gundrted]

The short answer is .1in will make no difference in real world performance.

 

[bearone2]

the 320 followed in the shadows of the 228, 229, 220 compact, 245, which had 3.9" bbls.

 

[Nicefish]

Did not know that (common length barrel with several predecessors). I'm relatively new to Sig Sauer. Thanks.

 

[Big Cape]

The 227 as well - 3.9.

 

[sigke]

Even in the world of high powered rifle shooting, you can do almost anything with a 20" barrel.
Like others have said, that .1" will make no difference.

 

[ca survivor]

the 3.9, 3.3 or 3" guns I own are either .40 or .45 ACP still will do more damage than me throwing a rock.

 

[jeff s]

My guess, ze Germans probably made compact Sig barrels 100mm/10cm. Hence why the strange 3.9 inches.

 

[Nicefish]

Interesting theory.