Picked up a NIB Remington 700 in 300 RUM, Black on black, added a muzzle brake, A Diamond Trigger Tech Trigger , on piece rail and Weaver tactical rings and threw on a Swarovski 4-12 x 50 scope. So far it shoots pretty decent for the work I have into it. I have an aftermarket stock coming and have worked up some pretty decent handloads but......they do not fit the magazine box from factory. I have set the COAL @ 3.795 as a happy point from the lands so its a 2 shooter so to speak. (one in the mag and one up the spout) I have seen a couple of options but it looks like they require some machining, What have others done to get 3.850 inch magazine boxes (either fixed or detach) in a RUM length cartridge?