Puzzled!

Egduns

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Jul 29, 2021
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Az.
Hi, first time posting long time reading. Sort of new to reloading. Sort of learning as I go. Have a Remington 700 .270 Winchester. Maybe 800 rounds through it. Seems like I can go in and out of accuracy, could be me. Started with Sammi length then recently went .024 longer ogive. Bolt was hard to close and the were Mark's on the bullet from the lands. Got the hornady oall gauge it measured .129 longer than loaded round. Any help??
 

Hard rock

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Dec 20, 2020
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Tomball Texas 77377
Hi, first time posting long time reading. Sort of new to reloading. Sort of learning as I go. Have a Remington 700 .270 Winchester. Maybe 800 rounds through it. Seems like I can go in and out of accuracy, could be me. Started with Sammi length then recently went .024 longer ogive. Bolt was hard to close and the were Mark's on the bullet from the lands. Got the hornady oall gauge it measured .129 longer than loaded round. Any help??
Sounds like something was off measurement to begin with start over and recheck everything including all lock rings etc the die could have changed if not locked down properly
 

Ol' Red

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Nov 28, 2018
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If the lands are marking the bullet, then push the bullet in at least .020" and try again. Once you find the land contact, start backing off until they shoot the best.
 

Carlos88

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Dec 16, 2020
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Benbrook TX 76126
Hi, first time posting long time reading. Sort of new to reloading. Sort of learning as I go. Have a Remington 700 .270 Winchester. Maybe 800 rounds through it. Seems like I can go in and out of accuracy, could be me. Started with Sammi length then recently went .024 longer ogive. Bolt was hard to close and the were Mark's on the bullet from the lands. Got the hornady oall gauge it measured .129 longer than loaded round. Any help??
If you had the bullet mashed into the lands and extracted it, it's possible the engraving prevented the bullet from being extracted at the same rate.
 
Last edited:

dfanonymous

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Jul 16, 2016
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1,406
Hi, first time posting long time reading. Sort of new to reloading. Sort of learning as I go. Have a Remington 700 .270 Winchester. Maybe 800 rounds through it. Seems like I can go in and out of accuracy, could be me. Started with Sammi length then recently went .024 longer ogive. Bolt was hard to close and the were Mark's on the bullet from the lands. Got the hornady oall gauge it measured .129 longer than loaded round. Any help??

Are you measuring the loaded round by tip to base or ogive to base?
 

MagnumManiac

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Feb 25, 2008
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3,649
Please try this, take a dud case, put two slits in the neck opposite each other for the entire neck length with a .040” (1mm) Dremel cutoff wheel. Clean all the burrs off, size it, place a bullet in it and carefully chamber it, open and close the bolt a couple of times then carefully remove it but don’t let the bullet drag anywhere on the action as you withdraw the bolt.
Measure that and compare.
I had trouble with my Hornady and found this method is repeatable every time if you get a feel for it.
Now this measurement will most likely be .003”-.005” into the rifling, no way around that.
Keep that case to find the lands with all subsequent bullets you use, it’s fast, accurate and easy.

Cheers.
 

Egduns

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Jul 29, 2021
Messages
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Location
Az.
Thanks for the replies. The measurmant was to the ogive. I will try the Dremel. The way the whole thing went just doesn't seem logical.
 

emp1953

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Sep 29, 2013
Messages
391
Did you take the rifle apart for cleaning? Wood or composite stock? Removed stock from action? I found on an old Rem700 that when I put it back together because of the age and dryness of the wood stock I was able to torque the screws tighter than before, it put pressure on the barrel and screwed up my accuracy, couldn't shoot a group to save my soul. So I bought a composite stock and all is back to normal now. Further to MagnumMania's suggestion, once you get that dummy case set up, when you measure it tip to base, write the measurement down in your reloading manual so you'll have it along with data on the bullet. Remember that that measurement is only good for the bullet you have in the dummy at the time. Other makes, types, weights, tip type etc of bullets have different ogive measurements and thus will likely result in a different overall length.
 

Egduns

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Jul 29, 2021
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Az.
9
Did you take the rifle apart for cleaning? Wood or composite stock? Removed stock from action? I found on an old Rem700 that when I put it back together because of the age and dryness of the wood stock I was able to torque the screws tighter than before, it put pressure on the barrel and screwed up my accuracy, couldn't shoot a group to save my soul. So I bought a composite stock and all is back to normal now. Further to MagnumMania's suggestion, once you get that dummy case set up, when you measure it tip to base, write the measurement down in your reloading manual so you'll have it along with data on the bullet. Remember that that measurement is only good for the bullet you have in the dummy at the time. Other makes, types, weights, tip type etc of bullets have different ogive measurements and thus will likely result in a different overall length.
Thanks for the reply. It is a composite stock. I do wonder about how often to clean the bore, do hear different ideas.
 

emp1953

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Sep 29, 2013
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9

Thanks for the reply. It is a composite stock. I do wonder about how often to clean the bore, do hear different ideas.
If it was shooting fine before your upgrade, and you didn't take it apart, the only thing left is the changes that you made. New rings, new scope. New scope can be bad right out of the box. Who knows if it was dropped while in transit. Or it is one rare one that got past the QC guys.
 

Josh06

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Sep 17, 2019
Messages
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Location
Fort Worth, TX
Hi, first time posting long time reading. Sort of new to reloading. Sort of learning as I go. Have a Remington 700 .270 Winchester. Maybe 800 rounds through it. Seems like I can go in and out of accuracy, could be me. Started with Sammi length then recently went .024 longer ogive. Bolt was hard to close and the were Mark's on the bullet from the lands. Got the hornady oall gauge it measured .129 longer than loaded round. Any help??
The bullet was jammed into the rifling and the rifling held on to the bullet and pulled it out of the case a little when you took it out. Surprised it didn't stick and pull all the way out of the case. That is why it came out longer.
 

Egduns

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Jul 29, 2021
Messages
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Location
Az.
The bullet was jammed into the rifling and the rifling held on to the bullet and pulled it out of the case a little when you took it out. Surprised it didn't stick and pull all the way out of the case. That is why it came out longer.
Thanks for replying, the ogive length stayed the same. What is longer is the measurement with the hornady oal gauge.
 

jebel

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Jun 15, 2018
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Oregon
Measure the base to shoulder of the modified case you use with the OAL gauge and do the same with one of our own cases. Is there a significant difference?
 
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