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Mehul Kamdar

quote:

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Originally posted by mehulkamdar:
...I also remember reading somewhere that some Israeli gunmaker had used polygonal rifling for pistol barrels.

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That was the Desert Eagle handguns, that used polygon rifling. My friends 44 mag has such. ~~~Suluuq

The legendary H&K PSG-1 is polygonal rifled too : http://hkpro.com/psg1.htm

I have several rifles with polygonal rifling, one has a Harris Gun Works barrel and the others use Pac-Nor.

There apparently is a "male" and a "female" form of this rifling and I don't understand enough about it to explain the difference.

I get good velocities from my rifles and they're quite accurate. My polygonal rifles rifles are a little fussy about shooting non-lead core bullets and I don't do that anymore.

We do make both polygon and conventional rifling. Polygon is made to
operate in a more dirty environment and to be more durable. On average,
you will give up about 7-10% in accuracy. But, in tactical guns, we have
seen repeated groups that are between 3/8 and 1/2 moa. So, it is
accurate, but not so much as a benchrest barrel.

There are two types of polygon. What I call male and female. The male
type is like that which Glock uses. The female type is like that of H&K.
For a wide variety of bullets, the male type is better as it handles the
pressure spikes caused by the different bullets.

Velocities will tend to be slightly higher, but this will range from only a
slight increase to about 3%. But, way too many factors are coming into
play to guarantee any set amount of increase.

I hope that this answers your questions.

A special thanks to Mr Bill Tompkins for putting me through to Mr Woodall. I shall also mail Tac-Ord as suggested by Mr Dave King. Thanks, sir.