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Rifles, Reloading, Optics, Equipment
Gunsmithing
New barrel chamber off center, 2 lands going back to neck... Pictures
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<blockquote data-quote="tobnpr" data-source="post: 2484035" data-attributes="member: 68758"><p>Not the case with factory rifles, or many customs for that matter.</p><p>For custom chambers that are "other than" SAAMI spec- whether freebore, leade angle, neck diameter, etc. it's always best to have a custom reamer ground to the desired specifications. Reamers are form cutters, can't end up with anything other than exactly what you've requested.</p><p></p><p>"Throating", or adding additional freebore, can and often is done as an additional step after cutting the chamber (or when an existing chamber needs to be modified for heavier bullets) as you mentioned- but it's never done that way on a mass-production barrel, always with reamers that cut the entire chamber.</p></blockquote><p></p>
[QUOTE="tobnpr, post: 2484035, member: 68758"] Not the case with factory rifles, or many customs for that matter. For custom chambers that are "other than" SAAMI spec- whether freebore, leade angle, neck diameter, etc. it's always best to have a custom reamer ground to the desired specifications. Reamers are form cutters, can't end up with anything other than exactly what you've requested. "Throating", or adding additional freebore, can and often is done as an additional step after cutting the chamber (or when an existing chamber needs to be modified for heavier bullets) as you mentioned- but it's never done that way on a mass-production barrel, always with reamers that cut the entire chamber. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
New barrel chamber off center, 2 lands going back to neck... Pictures
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