Bolt head and mag should be ok. The factory recoil lugs are stamped and as such can be warped. For no more than they cost, I say go ahead and get the lug. I would call Jim Briggs at NSS, I have two of the ground NSS lugs and hove no complaints. Also if you call Jim I would see if you can get a CBI barrel in 6.5x55. I love my CBI in 6BR and would definatly recommend the CBI.
Bookmarks