I have been doing a lot of research on this as well as I plan on using one for a 6.5 prc build. you have to have the action milled slightly to accept the wyatt extended box for a BDL setup and have the bolt stop modified. but If you using detachable mags, you can get away with it with a WSM/ mag with no binder plate. to get you out to 2.950 with no modification to the action. from a few guys I have spoke with its not a big deal and most smiths can do it easy as its the same for a Remington 700 SA. If you don't want to have your action milled you have to run mags or use another action such as the TL3 I believe can come cut for the wyatt box from factory. I have decided to forego the milling as I don't hunt on a loaded chamber. and I would like more than 2 rounds in the magazine.