Polygon, No, I can't say that I have tried a polygon bore. I do know back in the '60s that certain handgun makers were claiming a slight velocity increase with polygonal rifling. And ...

Our rifle barrels are produced using button rifling. We were the first to use this ... US-System Blanks; European System Blanks; Polygon Blanks; Extra Length Blanks; 50BMG Target ...

Also I would appreciate information on twist rates for the barrel, recommended throat length for the chamber, and the Lothar Walther barrels, number of rifling grooves, polygon ...

ZU - G-22 - February 1992 ZX - G-23 - March 1992 - 2nd Gen. ZZ - G-17 - Unknown - 2nd Gen. - Austrian, no polygon barrel (ordinary rifling) END_BLOCK

Acronym Definition; PIC: Picture: PIC: Graph (File Name Extension ... Polygon Pictures polygon pusher Polygon Record Company Ltd ... Polygonal rifling polygonal shape polygonal shape

polygon 3-d patterns to cut out polygon 90 degreese angles polygon activities for mathematics ... polygonal rifling polygonal rifling barrels polygonal shapes in natural habitats

Another system, polygon al rifling, gives the bore a polygonal cross section. Polygonal rifling is not very common, used by only a few Europe an manufacturers.

... 429" (10.9 mm).429" (10.9 mm).495" (12.6 mm) Technical data may not be exact due to production/model/specification changes. Mechanical Features Rifling Type: R.H. 6-Rib polygon barrel ...

... each angular point is cut away by the seven projecting sharp edges which protrude in the barrel at the junction of the sides of the polygon. This alteration in the rifling of my ...

Freeman, Ray, "Consecutively Rifled Polygon Barrels", AFTE 1978 Jun;10(2):40-42 - three ... Extensive treatment of various rifling methods. Noted the persistence of subclass ...