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Rifles, Reloading, Optics, Equipment
Reloading
Can you have too much head space?
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<blockquote data-quote="AZShooter" data-source="post: 1482273" data-attributes="member: 5219"><p>Sounds like the sized brass became too short just like you suggest in your first post.</p><p></p><p>Perhahps you are not setting up you full length sizer die correctly.</p><p></p><p> </p><p></p><p>Please share with us how you set up the sizer die. As an example on how not to do it, I refer to RCBS's instructions on setting up the FL die. Using RCBS's method the sized brass will fit the chamber, but it can often be over sized and very short. The brass will not last long with this setup. It will eventually cause case head separation.</p><p></p><p> I wrote some information below which may pertain to your situation.</p><p></p><p> </p><p> </p><p>Here is RCBS's instructions on setting up FL die:</p><p></p><p><span style="font-size: 15px"><strong>5. Install the Sizer Die</strong></span></p><p>Thread the sizer die into the press until the die touches the shell holder when the ram is at the top of the press stroke. Raise the press handle and turn the die down another one-eighth to one-quarter of a turn and set the large lock ring. If you're using a carbide sizer die, leave a 1/16" gap between the bottom of the die and the shell holder.</p><p></p><p>link:</p><p><a href="http://rcbs.com/Resources/Introduction-to-Handloading/Step-by-Step-Reloading.aspx" target="_blank">http://rcbs.com/Resources/Introduction-to-Handloading/Step-by-Step-Reloading.aspx</a></p><p></p><p>Proper way to setup a FL sizer die is to start with a 3/16" to 1/8" gap between the die and shellholder. You want to see where the neck is sized so it is useful to cover the neck with a sharpie to see where the die sizes the neck. Lube and size one piece of brass, wipe it off and try it in the chamber. Progressively lower die 1/8 turn at a time and repeat sizing. At some point the die will be close to sizing neck but case won't fit in the chamber. This is because the body taper is beginning to be removed lengthening the case. Continue sizing case until there is a little resistance to closing the bolt. For hunting I prefer to adjust the die a bit more so the bolt will close with no resistance. When this setting is found you will probably see a small gap between the die and the shellholder. You can lock the ring or better yet use a feeler gauge set to determine the actual gap and write it down for reference.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1482273, member: 5219"] Sounds like the sized brass became too short just like you suggest in your first post. Perhahps you are not setting up you full length sizer die correctly. Please share with us how you set up the sizer die. As an example on how not to do it, I refer to RCBS's instructions on setting up the FL die. Using RCBS's method the sized brass will fit the chamber, but it can often be over sized and very short. The brass will not last long with this setup. It will eventually cause case head separation. I wrote some information below which may pertain to your situation. Here is RCBS's instructions on setting up FL die: [SIZE=4][B]5. Install the Sizer Die[/B][/SIZE] Thread the sizer die into the press until the die touches the shell holder when the ram is at the top of the press stroke. Raise the press handle and turn the die down another one-eighth to one-quarter of a turn and set the large lock ring. If you’re using a carbide sizer die, leave a 1/16” gap between the bottom of the die and the shell holder. link: [URL]http://rcbs.com/Resources/Introduction-to-Handloading/Step-by-Step-Reloading.aspx[/URL] Proper way to setup a FL sizer die is to start with a 3/16" to 1/8" gap between the die and shellholder. You want to see where the neck is sized so it is useful to cover the neck with a sharpie to see where the die sizes the neck. Lube and size one piece of brass, wipe it off and try it in the chamber. Progressively lower die 1/8 turn at a time and repeat sizing. At some point the die will be close to sizing neck but case won't fit in the chamber. This is because the body taper is beginning to be removed lengthening the case. Continue sizing case until there is a little resistance to closing the bolt. For hunting I prefer to adjust the die a bit more so the bolt will close with no resistance. When this setting is found you will probably see a small gap between the die and the shellholder. You can lock the ring or better yet use a feeler gauge set to determine the actual gap and write it down for reference. [/QUOTE]
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Can you have too much head space?
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