I know the crown at the end of the muzzle is really important for bench shooters but I was wondering do ML crowns ever see that much damaged since they are loaded and sometimes cleaned with a ramrod from the muzzle end? I see on the newer T/C's they have the QLA feature which puts the crown further down the barrel with less of a chance of the ramrod wearing on it. Just wondering if this has much of an affect on poor groups sometimes? Thanks.