Hello everyone! Sorry for the delay on my first post. Love the website and all the info that everyone provides! I am in the process of converting my 7mm rem mag sendero to a 300 RUM. Got a 30" Krieger 1:10 that I am going to push some 208 AMAX or 210 Berger's. My question is should I have the smith open up the magazine box on the action to accomodate an aftermarket magazine (DBM) or is the general advice just to single feed? Going to mostly be used for target shooting and maybe a little hunting, like prairie dogs and mule deer. Can't really use it for elk in AZ as there are to many boneheads that like to road hunt and blow a lot of opportunities for most of us hunters. I have other rifles for the close range shots anyways. Anyways, if using an aftermarket is a good thought, what would be the way to go? I am all ears and appreciate any advice!