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Hunting
Long Range Hunting & Shooting
New to reloading and have question on seating bullet
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<blockquote data-quote="FearNoWind" data-source="post: 1268753" data-attributes="member: 50867"><p>You're looking for COBL. Because you are measuring from the base to the ogive, unless the case shoulder interferes with the distance the case/bullet combination enters the chamber, there is no need to drill and tap a special case fired in your rifle to make the measurement. If you want to make sure of the shoulder tolerances you can always run the Hornady case through your sizing die to set back the shoulder and then use an expander mandrel or seat a bullet and then pull it to open up the neck for the loose fit bullet. You can make a case yourself if you want to drill out the primer recessand tap the hole but, IMO, it's' much easier to use the Hornady case. </p><p>Caveat - There may be a time when you can'f get hold of the case you need using Hornady's commercial products. In that situation, you'd be compelled to make one of your own. The drill size you would need is a .290 drill bit (letter "L") and a 5/16x30 tap. You can do it using a drill press but it's a bit tricky getting the alignment right so a lathe works much better. (That's why I said "IMO, it's' much easier to use the Hornady case.)</p></blockquote><p></p>
[QUOTE="FearNoWind, post: 1268753, member: 50867"] You're looking for COBL. Because you are measuring from the base to the ogive, unless the case shoulder interferes with the distance the case/bullet combination enters the chamber, there is no need to drill and tap a special case fired in your rifle to make the measurement. If you want to make sure of the shoulder tolerances you can always run the Hornady case through your sizing die to set back the shoulder and then use an expander mandrel or seat a bullet and then pull it to open up the neck for the loose fit bullet. You can make a case yourself if you want to drill out the primer recessand tap the hole but, IMO, it's' much easier to use the Hornady case. Caveat - There may be a time when you can'f get hold of the case you need using Hornady's commercial products. In that situation, you'd be compelled to make one of your own. The drill size you would need is a .290 drill bit (letter "L") and a 5/16x30 tap. You can do it using a drill press but it's a bit tricky getting the alignment right so a lathe works much better. (That's why I said "IMO, it's' much easier to use the Hornady case.) [/QUOTE]
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Long Range Hunting & Shooting
New to reloading and have question on seating bullet
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