My barrel looks funny ? ? ?

P

PLASTIC SIG

New member
Im just wondering, on the barrel of alot of guns you see the taper that goes down into a v shape and then tapers back out to the tip of the barrel that you would see if u were staring down the barrel. if you look at most 1911 style pistols you will see a straight barrel...no cone shape to it. just straight round metal like a pipe. but on some you see a taper that kind of cones out. Im looking at my keltec p11 and it has that taper. What exactly is that for ? does it improve accuracy? does it help with reliability?

Im clueless....the only thing i can think of is, when the slide comes back the barrel points up at the sky (lock back a sig and look) and maybe when it comes back the slide has something to move off of. I dunno....help!!!

Tim : )
 
I think you are refering to the method of the barrel locking into the slide. On a typical 1911, and most other pistols which use the same design principles there is a seperate bushing that is held by the end of the slide, and holds the barrel. An alternate design involves putting a bell on the end of the barrel (think of it as welding the bushing to the barrel) so the outer end of the barrel is held directly by the end of the slide. So the outer end of the barrel is locked into the outer end of the slide, and the inner end of the barrel is also locked into the slide in someway, and hopefully the barrel is being pointed to the same place that the sights (mounted on top of the slide) are indicating. Poor fit of any of the locking points between the barrel and slide means that the barrel can move and point to some other place, leading to poor accuracy.
 
Makes sense to me. I remember my firestar's barrel would move slightly inside the the slide. I assumed this would lead to inaccuracy. Sigs seem to be the tightest. Thanks for clearing it up. I knew there had to be some logic behind it.


Tim : )
 
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