I have 2 30/06 Savage 110 barrels, that I would not mind rechambering, re boring to another caliber like .35 , or .400 Whelen, 338/06, or anything that will work with the same case size head. I was leaning towards the .35 Whelen, since that should clean up the bore and case differences I think. One of these barrels, is a tack driver, I am talking about nearly 1/2" groups with factory ammo, and the other shoots 1", only shot it 3 times to be fair. I want to primarily use cast boolets, and I have a ton of .35 bullets, and a 6 cavity 200gr GC lee mold. All replies appreciated.