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The Basics, Starting Out
Hornady OAL gauge - making my own modified case
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<blockquote data-quote="Blackhawk" data-source="post: 1942956" data-attributes="member: 105459"><p><strong>If you decide to make your own modified cases to use in conjunction with your Horandy L.N.L. Straight O.A.L. Gage or the older Stony Point , here are a few tips.</strong></p><p><em>You really must drill that letter L drill as straight as possible into your brass case head.</em></p><p> <em>Make certain to place your case inside hardwood jaws that have been drilled out slightly larger than your case diameter ,and then cut in half making two inserts to place between your vise jaws. ( Disregard this step if you use a lathe and collet to hold your brass shell )</em></p><p> <em>To that end a drill press with a vise attached and squared up , or a lathe is the way to proceed .</em></p><p><em>Remember that brass is soft and gummy and will heat up and easily gall unless you use some sort of coolant like left over automobile engine oil.</em></p><p><em>Just a drop or two while you are clearing your brass chips from the drill bit as your brass shell case will run hot while drilling. That brass shell case head is deeper than you think so just take your time and go slow.</em></p><p> <em>You will also need to lubricate your 5/16 " X 36 TPI tap as it cuts the thread.</em></p><p> <strong>I hope that this post may give you some guidance.</strong></p></blockquote><p></p>
[QUOTE="Blackhawk, post: 1942956, member: 105459"] [B]If you decide to make your own modified cases to use in conjunction with your Horandy L.N.L. Straight O.A.L. Gage or the older Stony Point , here are a few tips.[/B] [I]You really must drill that letter L drill as straight as possible into your brass case head. Make certain to place your case inside hardwood jaws that have been drilled out slightly larger than your case diameter ,and then cut in half making two inserts to place between your vise jaws. ( Disregard this step if you use a lathe and collet to hold your brass shell ) To that end a drill press with a vise attached and squared up , or a lathe is the way to proceed . Remember that brass is soft and gummy and will heat up and easily gall unless you use some sort of coolant like left over automobile engine oil. Just a drop or two while you are clearing your brass chips from the drill bit as your brass shell case will run hot while drilling. That brass shell case head is deeper than you think so just take your time and go slow. You will also need to lubricate your 5/16 " X 36 TPI tap as it cuts the thread.[/I] [B]I hope that this post may give you some guidance.[/B] [/QUOTE]
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Hornady OAL gauge - making my own modified case
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