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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
what long range cartridge would work best for a remington short action
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<blockquote data-quote="Trickymissfit" data-source="post: 483666" data-attributes="member: 25383"><p>here's why I said to go with the 6/250AI instead of the .243AI. When fire forming an improved case the over all length actually shrinks anywhere fron .030" to .060"; depending on the case design and how much of a void the brass has to fill. A typical .243AI shrinks anywhere from .03" to .045", and the neck is the part that looses out. The .243 neck is already too short for heavy bullets and very light bullets, and the T.P. ends up in the throat killing barrel life. But with the 40 degree shoulder, it helps by moving the T.P. back into the neck a little bit. You still can't overcome the too short of a neck syndome. Most guys I know that still shoot the .243AI use 6mm Remington brass instead of generic .243 brass to at least keep the proper neck length. My 6/250AI chamber is actually about 1.968" long, and I use .243 brass rather than 22-250 brass. My cases will shrink right at .040" on fire forming. This makes them come in at about 1.930" for a neck length of .26" (roughly). I'd much rather have a .290 neck length. My next 6mm round will be a 6BG or a 6BG+.100".</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 483666, member: 25383"] here's why I said to go with the 6/250AI instead of the .243AI. When fire forming an improved case the over all length actually shrinks anywhere fron .030" to .060"; depending on the case design and how much of a void the brass has to fill. A typical .243AI shrinks anywhere from .03" to .045", and the neck is the part that looses out. The .243 neck is already too short for heavy bullets and very light bullets, and the T.P. ends up in the throat killing barrel life. But with the 40 degree shoulder, it helps by moving the T.P. back into the neck a little bit. You still can't overcome the too short of a neck syndome. Most guys I know that still shoot the .243AI use 6mm Remington brass instead of generic .243 brass to at least keep the proper neck length. My 6/250AI chamber is actually about 1.968" long, and I use .243 brass rather than 22-250 brass. My cases will shrink right at .040" on fire forming. This makes them come in at about 1.930" for a neck length of .26" (roughly). I'd much rather have a .290 neck length. My next 6mm round will be a 6BG or a 6BG+.100". gary [/QUOTE]
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what long range cartridge would work best for a remington short action
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