Re: so i think i want to build a custom
Like many here, I've had rifles built both ways.
In my opinion, if you already had a magnum, long action Rem. rifle that had a good stock you could use for your 7stw build you could have a rifle that would shoot as good as you could ever want one to and save some money in the process.
If you have to go out and purchase a Rem. 700 just to use the action, then add everything new around it, you would be better off buying a custom action.
Also, custom action built rifles seem to always hold their value better than factory action built rifles do.
Either, if built properly, will usually out shoot the shooter.