I agree 100% that custom barrels are better in terms of extreme precision. I suppose an "accuracy shoot" is a relative term. If by that you mean benchrest, then yes custom barrels rule the roost, no question. Some factory barrels will shoot .3's or .4's consistently with the right load, trigger and bedding. I have owned a couple of them. This will never win a benchrest competetion but will certainly be all that is generally needed for any discipline where a greater degree of shooter error is introduced. Tactical matches, silhouette, hunter style shoots ect. The particular rifle in question is clearly a tactical style rifle and we can safely assume it would be a .75 MOA rifle with a little encouragement (most pss or sps HB's are). For tactical style shooting or any discipline other than benchrest style shooting .75 MOA rifles offer all the precision that 99% of marksmen can utilize. Custom barrels are awesome, I've shot many, they are superior in many ways but their advantages are only truly advantages to a very small percentage of shooters. Burning out a few factory barrels is the only way to gain the skill necessary to truly make use of a gun capable of .2's. Remember, this is his "first attempt at a precision rifle".
Burn out your factory barrel and THEN by a super-pipe. It just makes more sense.
P.S. Buy it from Obtunded, I think I may have offended him. I certainly didn't mean to.
Brenden