Re: Thought's and help on a Rem 700 .243
i bought the same gun. thought it would be a good practice gun/coyote rig. I did just as Aldon said previously. Free-float, stifen the fore-end and bed the action. It really turned out alot better than I hoped.
When you remove the material around the barrel channel, take out ALOT! I removed a solid 3/32 of material before it was free-floated and then I removed another 1/8-3/16. It sounds like alot and is. It doesnt look as good as a tight fit, but garanteed that if you dont have a ton of room in there that when the temperature hit extremes the stock will move and have contact with the barrel. If done other work on stocks and made them fit tight (injection molded cheapies) and sure enough after paint, they move and I gotta remove more.
With the above mentioned .243 win, I have shot 1MOA 5 shot groups to 780yards. Not the norm, but at best. For a $$500 gun, thats pretty good, and Im sure that with better hand loads (mine are 250fps slower than max) Itll be better. One thing I can say, after shooting a .243 at 800 yards, shooting the big stuff is alot easier.