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land marks

 
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  #1  
Old 07-23-2008, 04:13 PM
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land marks

I'm loading 210 bergers, and I wanted to try to find the lands, so I polished the bullet real well, seated a couple, loaded and closed the bolt. The bullet shows land marks on only half the bullet when I extract it, do I need to seat deeper or out further out,

Travis
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  #2  
Old 07-24-2008, 12:27 AM
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Twist bullet in 0000 steel wool. Increase length until you see number of squares equal to number of lands.

Rectangles showing lengthways of bullet too deep. Rectangles across bullet or not all lands showing, too shallow.

Seat further out.
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  #3  
Old 07-24-2008, 06:08 AM
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Quote:
Rectangles across bullet or not all lands showing, too shallow
Wouldn't that mean the bullet isn't concentric to the case?
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  #4  
Old 07-24-2008, 10:31 AM
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Might also mean a horrible chamber job.

Just what you wanted to hear huh?
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  #5  
Old 07-24-2008, 04:37 PM
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Just in case, are you sure that the scratches on one half the bullet are not scratch marks from ejection?? I hope for your sake they are because the alternative isn't very good.
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I used to re-load but now I "hand-load".
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  #6  
Old 07-24-2008, 07:42 PM
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It's not ejector marks, at first I blackened bullet with a candle and loaded, and kept seating deeperuntil I didn't see marks, when I did this I had marks whole way around. After I decided where to start loads I loaded some up and shot at 300yds to find load and could only manage 3-4" groups, so I figured I would recheck and thats when I noticed that only half bullrt had land marks.

Travis
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  #7  
Old 07-24-2008, 07:54 PM
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That's still 1 MOA. What kind of rifle is this in?
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