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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Lapua Headspace Problem?
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<blockquote data-quote="Coyboy" data-source="post: 332056" data-attributes="member: 3733"><p>When using headspace gauges you should strip the bolt(fire-pin, ejector, extractor.) That way you can FEEL what is happening. Using pressure to close the bolt on a hardened gauge is not somthing you should do. A couple of problems that can happen; unlubed lugs may gall from the pressure between the 2 surfaces, as the bolt is forced. Or the gauge may mar the shoulder of the chamber, under certain circumstances. You should use no pressure to close the bolt when it is stripped, it will basically flip flop very easily because there are no springs or a cocking piece to cam. Just let gravity take the handle down, or at most pinky pressure.</p><p></p><p>A couple things on pressure, Shawn a few months back brought up some info on newer runs of H100 being a little faster, some members here have found this to be the case, and it may be affecting your loads. Seating jammed or very close to the lands can increase pressure. Do you know what the lead length is in your chamber? Some barrels do not run as fast as others, and if your very early in round count your barrel may speed up with some use.</p></blockquote><p></p>
[QUOTE="Coyboy, post: 332056, member: 3733"] When using headspace gauges you should strip the bolt(fire-pin, ejector, extractor.) That way you can FEEL what is happening. Using pressure to close the bolt on a hardened gauge is not somthing you should do. A couple of problems that can happen; unlubed lugs may gall from the pressure between the 2 surfaces, as the bolt is forced. Or the gauge may mar the shoulder of the chamber, under certain circumstances. You should use no pressure to close the bolt when it is stripped, it will basically flip flop very easily because there are no springs or a cocking piece to cam. Just let gravity take the handle down, or at most pinky pressure. A couple things on pressure, Shawn a few months back brought up some info on newer runs of H100 being a little faster, some members here have found this to be the case, and it may be affecting your loads. Seating jammed or very close to the lands can increase pressure. Do you know what the lead length is in your chamber? Some barrels do not run as fast as others, and if your very early in round count your barrel may speed up with some use. [/QUOTE]
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338 Lapua Headspace Problem?
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