Alright, Ive been contemplating recently about doing an AR in .260 Rem. Then with the advice of RUSS, he suggested just buying the DPMS LR-260. But in my research of this rifle, several times in various places I read that the magazines provided hinder the cycling to the longer, high bc bullets; especially the 140 grain Berger VLD bullets. Anybody know of longer magazines than can accept longer bullets, and sit seat properly in the LR-260? Thanx.