Re: Question for the gunsmiths of the board.....Thanks in advance
Shawn is right on the money with his reply. As he said the H-S precision bottom end is a god sent to these conversions, a little spendy but reliability os worth every penny.
I personally feel the most critical aspect to fitting the Sakos extractor on the Rem 700 is fit to the bolt and to the bolt nose recess in the barrel.
Most top end smiths will cut the bolt nose recess in the barrel to 0.005" total clearance to the bolt nose diameter. THis means 0.0025" clearance on all sides. This is best for getting the most bolt control possible, best gas leakage seal in the event of a case head failure but also allowing fine accuracy. You want to screw up the accuracy of a rifle, have the bolt bare in the barrel, strange things happen to accuracy!
In all the more conventional rounds this is not really a problem but in the large case heads, fitting of the Extractor is CRITICAL. Often to keep the bolt nose recess dimensioned properly, youwill only have a thou or so for the sako extractor to slip over the case rim.
I also machine the bolt to much tighter specs as far as side play on the extractor and have found that not only does this seem to improve the grip onteh case by not allowing the extractor to move hardly at all side to side but it also increases the safetly level of the system by creating a tighter gas seal.
If fitted properly, the Sakos are a great system. If installed incorrectly, they will not perform well.
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