Here is information and reason for keeping and milling the rim guides back for controlling case feeding on longer cases.Rim guides are angled in from the sides of the opening toward back. As the bolt pushes top case in the mag forward the back of case and rim comes to where the tapers widen out so the case then slides up in front of the bolt.I'm fixing up my 2nd Savage I have set up for my second 700H 3.25" belted case. Just to see how it will work and along with other guys doing it, get the info out to people. This work on the stock/action can be done in a vertical mill or good drill press. To use 3.5" plastic the opening on the action and magazine needs 3.25", for 2.875"" brass long loaded 3.5", if 3.5" brass about 3.7", if 3.5" brass long loaded, 3.95". By long loaded I mean a slug like the Dixie 600gr that protrudes up to .4".The 730 gr flat wide nose slug protrudes 1/8". You also have to widen and smooth the ramp going into the front bridge so case lifts smoothly on the way into chamber.Ed
