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Joined: Jan 2010
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Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jan 2010
Posts: 13,229 Likes: 4 |
I'm wondering if I'm doing it wrong. Or better yet, if I could be reloading more right.
When I measure OAL I measure from the tip of the bullet. Accubonds and BTs aren't much of an issue because they're all really close to each other in length. Spin the seater up or down, measure, bingo.
Partitions and VLDs aren't quite so uniform. I sort through bullets to find one of predetermined length and use it as the representative bullet, so to speak. Spin the seater, find the right length, bingo.
But I've read about measuring from the ogive, since that doesn't change, while the tip can be off for a variety of reasons. So the question is, how many of you measure from the ogive, and how do you do it? And who just measures a bullet and calls it good?
P
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Member #547 Join date 3/09/2001
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Joined: Jul 2005
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Campfire Ranger
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Campfire Ranger
Joined: Jul 2005
Posts: 23,509 |
I use the hornady tool and works great
Then STFU. The rest of your statement is superflous bullshit with no real bearing on this discussion other than to massage your own ego. Suckin' on my titties like you wanted me.
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Joined: Aug 2010
Posts: 48,200 Likes: 23
Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,200 Likes: 23 |
I'm wondering if I'm doing it wrong. Or better yet, if I could be reloading more right.
When I measure OAL I measure from the tip of the bullet. Accubonds and BTs aren't much of an issue because they're all really close to each other in length. Spin the seater up or down, measure, bingo.
Partitions and VLDs aren't quite so uniform. I sort through bullets to find one of predetermined length and use it as the representative bullet, so to speak. Spin the seater, find the right length, bingo.
But I've read about measuring from the ogive, since that doesn't change, while the tip can be off for a variety of reasons. So the question is, how many of you measure from the ogive, and how do you do it? And who just measures a bullet and calls it good?
P I just measure to the bullet tip and call it good. The other chit is way over rated.. .
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Nov 2015
Posts: 470
Campfire Member
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Campfire Member
Joined: Nov 2015
Posts: 470 |
I measure to the tip of the bullet, not the ogive. I don't sort bullets or brass. I don't spin the case when I seat them either. I haven't found any accuracy issues. However, I don't shoot past about 300-400 yards.
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Joined: Feb 2003
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Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2003
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Hornady for me too. I've found alot of difference in the OAL of bullets relative to the ogive especially Partitions. I've seen 0.030 difference in the ogive locations in 30 cal 180 grain Partitions.
In fact I ran into a problem with them. I load 0.020" off land and groove for my 30-06. The bullets at 3.31 OAL turned out to be jammed into the L&G - which isn't a good thing when you're running a max load. I honestly think it was a fluke box because the OAL with all the other boxes measure 3.280 to 3.285 at 0.020 off.
Adversity doesn't build character, it reveals it.
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Joined: Sep 2010
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Campfire Ranger
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Campfire Ranger
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Posts: 19,179 |
"ogive measurey thingy" Obviously, you communicated, readers understood and responded. No problem. Jerry ps - I measure to the boolit tip. FWIW
jwall- *** 3100 guy***
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Joined: Dec 2002
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2002
Posts: 26,018 Likes: 10 |
Where the tip of the bullet sits in relation to the lands is of little consequence.
Where the ogive sits in relationship to the lands is of great consequence.
I long ago learned that the distance from bullet tip to ogive varies greatly within even the same box of bullets. Even with polymertipped bullets.
So I purchased the Hornady tool and measure COAL from the ogive .
People who choose to brew up their own storms bitch loudest about the rain.
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Campfire 'Bwana
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Campfire 'Bwana
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Campfire Outfitter
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Ed
A person who asks a question is a fool for 5 minutes the person who never asks is a fool forever.
The worst slaves are those that put the chains on themselves.
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Campfire Ranger
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Campfire Ranger
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Where the tip of the bullet sits in relation to the lands is of little consequence.
Where the ogive sits in relationship to the lands is of great consequence Exactly. That being said, I do both. I use Sinclair comparators mostly, but have Hornady also. I guess it just depends on the rifle/usage. For match loads, I am very particular. For hunting loads, I often just measure tip and go with max mag length......
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Campfire Regular
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Campfire Regular
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Sinclair Comparator. Probably overkill for some hunting loads I use.
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Campfire Regular
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"The beauty of the 2nd amendment is that it will not be needed until they try to take it" - Thomas Jefferson
Criminals prefer unarmed victims and dictators prefer unarmed citizens
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Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,195 Likes: 24 |
My comparator is the steel dial caliper kept on my loading bench. When I want to compare ogives on different bullets, I lock the caliper to halfway between bore and groove diameter for the caliber (as an example, .304 for .30 caliber) then use the caliper's jaws to scribe a line around a bullet at that diameter. This also makes finding a similar seating depth for different brands of bullets easy.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Campfire Regular
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Campfire Regular
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My comparator is the steel dial caliper kept on my loading bench. When I want to compare ogives on different bullets, I lock the caliper to halfway between bore and groove diameter for the caliber (as an example, .304 for .30 caliber) then use the caliper's jaws to scribe a line around a bullet at that diameter. This also makes finding a similar seating depth for different brands of bullets easy. Good idea Question, why not at .300" land diameter?
"The beauty of the 2nd amendment is that it will not be needed until they try to take it" - Thomas Jefferson
Criminals prefer unarmed victims and dictators prefer unarmed citizens
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Campfire Tracker
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Campfire Tracker
Joined: Oct 2014
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I measure to the ogive, but also to the tip if magazine constraints are a factor. For ogive measurements, I make adaptors for my calipers out of barrel stubs of the appropriate caliber. I don't have a picture of it, but same idea as this headspace measurement tool, just a smaller hole. It's just a shop-made version of the Sinclair or Hornady tools.
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Campfire Regular
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I found that comparing VLDs to BTs and partitions had a different length to lands on the VLDs, which doesnt make sense to me. I repeated several times with an "ogive measurey thingy" that EDtoomanyletters lent me, and it does appear that distance to lands is shorter on the VLDs (should be the same for any bullet of same caliber right?) I even thought about the longer VLDs bottoming out on the measurey thingy but it would make it longer
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Campfire Kahuna
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Campfire Kahuna
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Because rifling tapers in the throat. I want the bullet closer to the lands to start with.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Campfire Tracker
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Campfire Tracker
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I found that comparing VLDs to BTs and partitions had a different length to lands on the VLDs, which doesnt make sense to me. I repeated several times with an "ogive measurey thingy" that EDtoomanyletters lent me, and it does appear that distance to lands is shorter on the VLDs (should be the same for any bullet of same caliber right?) I even thought about the longer VLDs bottoming out on the measurey thingy but it would make it longer Ogive shapes vary a lot between different bullet styles, and are definitely not the same for any bullet of the same caliber. Keep in mind your seater stem usually does not bear against the part of the ogive that contacts the rifling, so you may see small differences in seated ogive length because of variations from one bullet to the next.
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Joined: Feb 2005
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Campfire Ranger
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Campfire Ranger
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You can just look at different bullets of same caliber and notice the ogive is different. Especially if different weights, but just about any different bullets really. Not sure why anyone would ever assume they were same.....
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