'No Drill' 1903A4 Sniper Rifle - 1903 Springfield ...
2011-11-18 · You should be using something like Easy tap for a cutting fluid. If you have work hardened it, a solid carbide drill should solve your problem. Trying to spot anneal the steel was a trick used on the earlier Double heat treated 1903A1 actions that were case hardened. However, breaking through the case with a solid carbide drill is most likely a ...
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