since you said entry level COMPETITION rifle I vote 6.5 cm of what you have listed. Competition rifle means high round count, which means barrel life and efficiency are paramount (outside of accuracy). The needsmoor will buck wind better than the 308, and your components will be cheaper than...
Joshlee, do you need a vintage stock for your build? I have an older factory 700BDL LA Walnut stock with pressed checkering id sell if you are interested? it is all wood, no plastic caps.
ELD-X shoot fine for me so far :) in a 7 rem mag Bergara and a 6.5 Creedmoor Kimber Montana. Before this I didn't even know a 6lb 6oz rifle/scope combo could shoot groups like this!
While attempting to be more utilitarian in my firearms retention I have sold 2 guns I wish I had back. Meanwhile I keep firearms based first on accuracy and use, secondly on sentimental value (family guns stay family guns etc.) Lastly I keep very few of the "hard to replace, will increase in...
The sooner you send it to Leupold the sooner you will get it back. No matter what tests you run, you will not have total confidence in your scope until you send it back then prove it out afterwards. There have simply been too many scope related problems. I wouldn't waste any more rounds...
The bullet that has proven out the most consistent for me in weight and on paper was Sierra Gameking 7mm 160gr SBT. I have since shot multiple ELD-X bullets into dime size groups from a 7 mag and a 6.5 creed so they have made me happy. the 55gr Vmax out of my 22-250 has shot some outstanding...