Posted by Denis Aarons on Jan 13, 2012; 2:45pm
URL: http://oldforum.flyshooter.com.au/6BR-throat-errosion-question-tp5136769p5142721.html

Hi Anthony,

Thanks for adding.  That makes perfect sence.

This may be B.S and please correct me if I'm wrong, but I suspect that a quality custom barrel may be more harmonically stable than a factory barrel.  The reason I'm thinking along those lines is because you guys are shootings custom barrels and can maintain 1 COAL through such a large amount of land movement and still group tightly.
My 30" SS factory Savage target profile barrel really only liked to shoot one little hole at .005" jammed.  

.005" +/- .002" would make 2 holes very close together.  3 in one and 2 in the other, which I suspect is 2 different harmonic nodes as the bullet exits the muzzle.  Still under .5MOA at 100m.

Anything different to those COAL caused consistant horizontal and vertical fliers and groups opened up every time.....gauranteed.

I'm aware it comes with its dangers, but I've read of high power shooters in the States "soft seating".  Does any one here do that.  That would eliminate the need to monitor the lands regularly and stay on them, allowing for carbon build up too.    

Cheers,

Denis.