This applies mainly to non-government size 1911s. Some manufacturers go with a bull barrel and a few stay with a traditional bushing setup. In 4 inch (or 4.25) guns, Kimber, Springer, and Rock Island use bull barrels while Colt, Sig, and Para uses a bushed design. My biggest dislike of a bull barrel setup is a "gadget" is usually necessary to capture the recoil spring for takedown. Heck, even my Springer Longslide uses a bull barrel - which was odd to me. Besides not requiring a "tool" for takedown, my opinion is that it's probably easier to tune a bushed gun for better accuracy. Also, as the mechanical components wear - a bushing can be replaced while a bull barrel setup would need complex machine work to accomplish the same task. Anyway, thought this would make a good discussion so what are y'all's opinions on the issue?