I've heard more than one account that this wildcat is a barrel burner - too much case capacity, too small a bore diameter. For example, a target shooter in Canada built one, and found accuracy life to be about 300 rounds. The inaccuracy was due to bore erosion - on firing, the hot gasses eat away the barrel.
A 6.5 WSSM is better balanced, and will probably allow you to shoot 1000-1500 rounds before the barrel is worn out.
