Re: PTG One-Piece Fluted Bolt With Handle ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Ring</div><div class="ubbcode-body">wouldnt fluting = less surface area drag on the bolt? not to mention a place for the dirt to go over draging on the bolt?... </div></div>
there's probably REALLY close to the same amount of contact radius between the bolt body and receiver bore with a smooth or fluted bolt. i doubt that does anything for you as far as reducing drag. i have found many fluted bolts to be "grabby" though while cycling.
as far as giving dirt a place to go, dirt has to be introduced into the bearing surface between the bolt and receiver bore for it to cause a problem. if you have say .005"-.007" of clearance between the two parts, not much dirt is going to find it's way into it on a clean, dry bolt. any dirt that collects on the bolt body will be wiped off of a smooth body when cycled. now when you cut flutes, you give "shelves" that could allow much larger dirt particles to gather and get wedged between the bolt and receiver bore.
until someone can prove otherwise, i feel fluted bolt bodies at the ejection port area on a two lug remington style action is for cosmetic reasons only. i'd really love for someone to prove me wrong though but i don't think it's going to happen.