a new built 1919 will have to be broken in.. run it some more,, your going to have to headspace for the ammo you use,,one click more or less is going to depend on the individual gun and ammo.. sounds like your off to a good start
just keep shooting to break it in. lube where necessary. shoot until it gets really hot and if it starts to act sluggish then you MAY have to go out one more click. that is how I did mine for 308 and 8mm. keep checking fired brass for any signs of case strechting or separations. One more click out may also give you less firing pin indentation. keep us posted.
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