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Rifles, Reloading, Optics, Equipment
Reloading
sticky bolt sometimes
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<blockquote data-quote="J E Custom" data-source="post: 458154" data-attributes="member: 2736"><p>Some chambers are shorter than SAAMI specs. Even though they are factory chambers they can have short necks or little or no free bore.</p><p></p><p>So the best thing to do is make sure this is not the case By loading a dummy round (NO powder</p><p>and/or no primer) long and trying it in your chamber real carefully by trying to close the bolt</p><p>very lightly and seating it deeper each time by.010 to .015 until the bolt will close.</p><p></p><p>The bullet will seat in the lands .005 to .010 thousandths so once you get the bolt to close with </p><p>no effort reduce the COL by .010 and that will give you max overall length.</p><p></p><p>Once you have done this if it is still longer than SAAMI length you can eliminate this concern</p><p></p><p>And to your question about the effects, the more free bore you have the less pressure you will </p><p>have (To a point). If you seat the bullet against the lands you will have to start with much lower</p><p>powder charges.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 458154, member: 2736"] Some chambers are shorter than SAAMI specs. Even though they are factory chambers they can have short necks or little or no free bore. So the best thing to do is make sure this is not the case By loading a dummy round (NO powder and/or no primer) long and trying it in your chamber real carefully by trying to close the bolt very lightly and seating it deeper each time by.010 to .015 until the bolt will close. The bullet will seat in the lands .005 to .010 thousandths so once you get the bolt to close with no effort reduce the COL by .010 and that will give you max overall length. Once you have done this if it is still longer than SAAMI length you can eliminate this concern And to your question about the effects, the more free bore you have the less pressure you will have (To a point). If you seat the bullet against the lands you will have to start with much lower powder charges. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
sticky bolt sometimes
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