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Rifles, Reloading, Optics, Equipment
Reloading
Hornady oal gauge
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<blockquote data-quote="barefooter56" data-source="post: 1042938" data-attributes="member: 85389"><p>Abolt,</p><p>Try this. Using the Hornady tool , modified case and bullet you want to use . Shove the bullet out until it stops in the lands. Measure the dummy cartridge from bullet tip to base with a set of calipers. Then take a ONCE FIRED NECK SIZED cartridge case from that rifle and seat the bullet you used in getting your measurement in the neck till the tip of the bullet to base of the cartridge case equals the measurement off the dummy round to make another dummy round. Now, polish the tarnish off the bullet and chamber this round in your rifle. Extract and look for LANDS MARKS on the bullet. They should be rather long and match the number of lands your barrel has. Re-adjust the seater stem in your seating die down a bit , re-seat the bullet lower in the neck, polish the lands marks off re-chamber and re-check. Do this until ( and this is a reference point I use) you have lands marks on the bullet that are about the same thickness as a very sharp#2 pencil makes on paper. You are still slightly in the lands but you still have a reference point. Now measure the round from base to ojive with your comparator to get you OAL to the lands. Remember! The more you push a bullet into the lands or into a comparator the deeper it will go due to the copper jacket so try to keep your measuring to the least you can. And use only one comparator! No two comparators are alike !</p></blockquote><p></p>
[QUOTE="barefooter56, post: 1042938, member: 85389"] Abolt, Try this. Using the Hornady tool , modified case and bullet you want to use . Shove the bullet out until it stops in the lands. Measure the dummy cartridge from bullet tip to base with a set of calipers. Then take a ONCE FIRED NECK SIZED cartridge case from that rifle and seat the bullet you used in getting your measurement in the neck till the tip of the bullet to base of the cartridge case equals the measurement off the dummy round to make another dummy round. Now, polish the tarnish off the bullet and chamber this round in your rifle. Extract and look for LANDS MARKS on the bullet. They should be rather long and match the number of lands your barrel has. Re-adjust the seater stem in your seating die down a bit , re-seat the bullet lower in the neck, polish the lands marks off re-chamber and re-check. Do this until ( and this is a reference point I use) you have lands marks on the bullet that are about the same thickness as a very sharp#2 pencil makes on paper. You are still slightly in the lands but you still have a reference point. Now measure the round from base to ojive with your comparator to get you OAL to the lands. Remember! The more you push a bullet into the lands or into a comparator the deeper it will go due to the copper jacket so try to keep your measuring to the least you can. And use only one comparator! No two comparators are alike ! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Hornady oal gauge
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