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Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel throating pros & cons
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<blockquote data-quote="BobbyL" data-source="post: 416147" data-attributes="member: 14081"><p>Most reamers have the freebore already in front of the neck. Some gunsmiths order the reamers without freebore then use a throating reamer to put the throat in it. Most freebores are 1 deg 30 min. So you are cutting taper on the lands in the rifle to allow the bullets to be seated out to length. When i set one up i use a case and seat the bullet so the pressure ring is just starting to enter the neck. This gives us the best accuracy and allows for the most FPS by using more powder. The more room in the case the less the pressure will build with a specific charge. This has to be done carefully or you wont have enough bullet left in the neck to shoot it.</p></blockquote><p></p>
[QUOTE="BobbyL, post: 416147, member: 14081"] Most reamers have the freebore already in front of the neck. Some gunsmiths order the reamers without freebore then use a throating reamer to put the throat in it. Most freebores are 1 deg 30 min. So you are cutting taper on the lands in the rifle to allow the bullets to be seated out to length. When i set one up i use a case and seat the bullet so the pressure ring is just starting to enter the neck. This gives us the best accuracy and allows for the most FPS by using more powder. The more room in the case the less the pressure will build with a specific charge. This has to be done carefully or you wont have enough bullet left in the neck to shoot it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Barrel throating pros & cons
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