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Old October 19, 2012, 11:30 PM   #7
Senior Member
Join Date: December 17, 2007
Posts: 5,944
That is the best patterning ammunition out of an 18" cylinder bore. Choke may be the problem
Agree with this.

Flight control ammo usually gets its best results with O.C. cylinder.

Any choke tube that catches the flight control cup and strips it from the shot prematurely will result in a lesser pattern then the round is capable of.

Again, try O.C. cyl.

Last edited by shortwave; October 20, 2012 at 12:06 AM.
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