If u cut off .375 of an inch from the rear of a 243 winchester chambered barrel is it possible to rechamber with the 6XC ???...I have a new 243 win.chambered SS varmint weight barrel with a one in ten twist..If this barrel fails to provide me with decent accuracy is this rechambering option feasable ???..I wanted to go with the 6mm 22-250 but this looked a lot better..mike in ct