I sold my 7mm mag and bought a .300 win mag savage with the drop floorplate. I measured the length of the magazine compartment for the gun and and have a total length of 3.47 in. I am curious what overall length you are loading you guys are loading your .300 win mag ammo to. Details that would be helpful would be overall length and what bullet and weight. I will have my tool to measure chamber length to the lands in a couple days and would like to pick up some bullets based on what will fit into my magazine and hopefully be able to be seated into the lands.