Grendel SR mauser...........can it be accurate?

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Well the cheap part will come because I have all the parts except the barrel, reamer and modern trigger. I have the tool to drill the receiver for scope mounts and the vice and wrench to install the barrel. I would just need someone to thread the barrel and chamber it. I could even do that if I can find a short chambered barrel and buy a finnish reamer. I would target a light weight stock like those seen on many Swedish sporters of old with a free floated barrel and steel bed or accuraglass the original Mauser stock.

As I said before about the 7.62x39 rifle I have already built, it cycles the cartridges just fine in the 1894 7mm Mauser action but I have often wondered how much accuracy is affected by the fact that the case head is smaller that the bolt face. I know the chamber pretty much determines the cartridge position from shot to shot but I wonder how much effect the case head position as it is directed by the bolt face has an impact on bullet initial engagement into the throat as the cartridge is fired. If the cartridge case head is not reliably centered in the same place by the bolt face each time then the chamber wall will be the only consistant or inconsistant control. How much will this affect accuracy? Maybe less that my beating heart I wonder?

I'm stepping outside my normal world (going into bolt gun accuracy), but since it's a bolt gun, couldn't you just neck size your brass? That'd pretty much eliminate any small alignment issues I'd think? I bet regular factory ammo would still shoot fine though. You'd just likely see better accuracy with your neck-sized handloads.

Just guessing outside my bailiwick though. I could be full of beans, YMMV, My .02¢, etc.