I have a PBR XP that I put into the G5 McRee stock and I am having some problems with getting the magazines to seat. I have contacted McRee several times asking what is the common fix, but they said that there are too many different variations of the Winchester action to have a specific fix. I read in another thread someone saying to do a search of the FN bottom metal thread but I have turned up nothing. Just wondering if anybody has any specific solutions or experience with this action and chassis?