"There are a number of advantages to polygonal rifled barrels; such as less bullet deformation, resulting in reduced drag as well as prolonged barrel life, not to mention ease of cleaning."
"My message to my troops is if you see anybody carrying a gun on the streets of Milwaukee, we'll put them on the ground, take the gun away and then decide whether you have a right to carry it." - Milwaukee Police Chief Ed Flynn
i think it depends on the "poly" design. Every barrel can be called a polygon but the true polygon are like HK or Glock. Many make a 5R or 6R like Noveske and call them polygon. There are 2 types of true rounded poly lands, a male and a female. Some designs are known to fill the low areas with carbon to the point the bullets spin over the lands for the lack of a better term. Those that do not clean their rifles often will not get good performance from a poly.
Last edited by Terminal223; 03/24/15.
Ones post count on a forum has no correlation to level of knowledge on a particular subject.
If they act anything like Glock barrels, apparently the lead will build up and cause higher pressures. Never seen it myself as I don't shoot lead unless it's a muzzle loader, but I read it on the Internet so..........yeah.
Last edited by wareagle700; 03/25/15.
John 8:12 "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life."
Aren't they hard on lead or not supposed to shoot lead bullets ??
Doesn't seem to have ever been an issue.
"My message to my troops is if you see anybody carrying a gun on the streets of Milwaukee, we'll put them on the ground, take the gun away and then decide whether you have a right to carry it." - Milwaukee Police Chief Ed Flynn
I am just one of three people who posted that mentioned a Glock. When you google polygonal rifling, many of the links come up and mention them. I think they are one of the few in modern times that do this mainly because of the better gas seal they provide.
Not meaning to step on toes .... But the pistol market is so one of the only modern users of an antiquated process
Aren't they hard on lead or not supposed to shoot lead bullets ??
Doesn't seem to have ever been an issue.
Quite a difference in pressures involved...
I think you need to weigh in on the Glock barrel mention for the same reason.
"My message to my troops is if you see anybody carrying a gun on the streets of Milwaukee, we'll put them on the ground, take the gun away and then decide whether you have a right to carry it." - Milwaukee Police Chief Ed Flynn
Didn't realize anyone shot lead bullets in ARs. Had not heard that though about lead and poly rifling...
Always wanted to try it. 5R and standard works so good though, why break it if its working....
There are a few who persue such endeavors. Some for the challenge and for frugality. I haven't taken the 22 cast plunge yet, but might one of these days.
