I bought 10 of the Dumoulin Mauser actions from Sarco, and they have problems:
1) Scope mount as I have said before These bases can be made by S46 and S54, by milling the bottoms flat. The holes are already at 0.860" and 0.504". The thicknesses are already close, but this process makes them equal. The holes and countersinks are already correct, making this process low effort and low risk of an error.
2) Safety...the safety should push back the firing pin 0.030". If OTOH the firing pin falls onto the safety when the trigger is pulled.... the gun will fire when the safety if turned off.
3) Sharp edges


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My 1950 FN Mauser was a great rifle after I restocked and rebarreled it.

The Parker Hale take off barrels I got appear to be hand lapped.

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The man who makes no mistakes does not usually make anything.-- Edward John Phelps