I shoot a Blaser Lrs2 and am looking for any info on barrel producers that might be willing to manufacture a heavy flutted supergrade barrel with a 1in 7.5 twist 28ins long in 243 to shoot the 105 lapuas and 115 dtacs in my interchangeable Lrs2, as the Blaser factory are unable to produce such an item, your help would be greatly appriciated, paul T Ireland.