That is exactly why most benchrest shooters always F/L size. Accuracy improves.yukon375 said:The body of the typical factory neck-sizing die is much larger than the case body, so there's nothing to hold the case in alignment with the neck-sizing portion of the die. Consequently the neck's often resized out of alignment with the case body, a condition often made worse when the case gets pulled back over the expander ball.
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Not sure where you got this info from. I have never, and never seen anyone else FL size their cases at a BR match. Most BR competitors use in-line hand dies that use a bushing that is sized to the chamber/case that only sizes the neck. The dies for my BR rifle were cut with the same reamer as the rifles chamber, then the neck area was removed to accept the bushings. This allows almost perfect alignment when neck sizing, something almost impossible to do with threaded dies and press.stoolshooter said:That is exactly why most benchrest shooters always F/L size. Accuracy improves.yukon375 said:The body of the typical factory neck-sizing die is much larger than the case body, so there's nothing to hold the case in alignment with the neck-sizing portion of the die. Consequently the neck's often resized out of alignment with the case body, a condition often made worse when the case gets pulled back over the expander ball.
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Exactly my views on everything! Neck size until the bolt gets hard to cycle then fl size ( and always try cycle them in the rifle as well). I too never seen much of a difference between the two. As of late I have just been FL resizing everything, you really Can't argue with John Barsness!Tony300wby said:I usually neck size until my case's start to get tight. When they start to get tight then I run them through the FL sizer. I always check my case's in the rifle that they will be fired in after sizing.
Some people say that FL sizing shortens case life, I have never found this to be true. I have also never found FL vs NS making any difference in accuracy in most rifles. There are just to many variables in factory rifles and dies and how they are set to say that one way in more accurate and gives better case life then the other.
Good luck, Tony