sungazer wrote:The difference comes down to design more than anything. What the design provides for is more rigidity and strength. The customs dont usually have mag wells and they dont have large open wells on the top. The bolt may or may not have an ejection piston, this presents the cartridge straight into the chamber without any side pressure. The ejection port can be made to order it is normally quite large so you can extract the cartridge with a finger if you dont have the ejection piston.
If you are going to hang a long thick barrel on a factory action that has really big cut outs on the top, the bottom and one side think if it is really designed for that purpose.
And the ultimate affect on accuracy ?