I currently have a Remington 700 PCR in 6.5 Creedmoor. I am new to this forum and long range shooting. I want to develop some handholds for this using the "Finding the Jam" method. Well I found my Jam (you could call it lands if you want). So I want to start .020" back from that and then .003" back continuously until I find my "Node". Only problem is these longer bullets will not fit my magazine. Why Remington thought that they should design a "Precision Chassis Rifle" and build it with a short magazine is beyond me. So I have no problem loading each round in manually (as I put a thin pice of plastic under the magazines lips which woks well to keep magazine in and just set bullet on top and they load fine). But my question mainly is it that my barrel was designed with too much "free bore" in the camber? Is the chamber part of the action or part of the barrel? If it is part of the barrel, when I get a new barrel can I have it chambered so the I can use my magazine? Bear in mind that I am new and probably sound it but just need some help understanding this. Thank you in advance anyone who can help me out.