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New Rifle Troubleshooting
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<blockquote data-quote="cohunt" data-source="post: 1478325" data-attributes="member: 94491"><p>OP said this was a custom cut chamber from his smith but he is using factory ammo</p><p>lets work the numbers---- OP said the rifle was throated to run the 162 eldx at .07" off the lands</p><p></p><p>my remington saami spec chamber hits lands at 3.400" C.O.A.L----BUT the saami spec maximum length for the cartridge is 3.290" --so in my rifle I would be .110" off the lands if I loaded to saami spec max</p><p></p><p>since we dont know the actual length that Hornady loads their factory 162 eldx hunter ammo to, we would have to assume that they would not load longer than saami spec for factory ammo--IF this is the case then the OP's chamber would be shorter than a saami spec chamber--assuming that the smith chambered it as he stated then we would have to assume that the eldx would hit lands in his rifle at 3.36"??? that would be the saami spec max plus the .07" jump</p><p></p><p> as a reference, the 162eldx hits lands at 3.4" in my saami chamber, and my accuracy node is at 3.345" so I have a .055" jump to lands-- where did the .070" jump to lands come from?</p><p></p><p>we really need to know 2 things about this if we think it might be a "jump" problem--1st is what is the overall length that the factory 162 ammo is loaded to-- then, do the 162's really hit lands at .07" jump</p><p></p><p>really if you have a custom chamber cut, you should probably be reloading your own ammo-- also when you tell the smith to cut the chamber for .07" jump you are giving him a specific task to do--as long as he did this you can't really blame him--a better thing to say might have been " cut the chamber so it shoots factory 162eldx ammo really good" then you would have been leaving the chamber cut up to him</p><p></p><p></p><p>first I would check torque on bases, rings, stock/action screws etc -- was the stock free floated? does the stock have pillars, was it glass bed? have you tried tightening or loosening the action screws at all--- did you check the scope? maybe the OP has a scope issue and another scope would fix the problem? after checking all details then I would try different factory ammo to see if you can find which is most accurate for your combo</p><p></p><p>just for reference</p><p></p><p><img src="https://www.shootersforum.com/attachments/handloading-procedures-practices/39401d1474043344-hi-mv-7mmremmag-7mm-rem-mag-case-drawing.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="http://precisionrifleblog.com/wp-content/uploads/2012/10/saami-standardized-7mm-remington-magnum-chamber-dimensions1.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="cohunt, post: 1478325, member: 94491"] OP said this was a custom cut chamber from his smith but he is using factory ammo lets work the numbers---- OP said the rifle was throated to run the 162 eldx at .07" off the lands my remington saami spec chamber hits lands at 3.400" C.O.A.L----BUT the saami spec maximum length for the cartridge is 3.290" --so in my rifle I would be .110" off the lands if I loaded to saami spec max since we dont know the actual length that Hornady loads their factory 162 eldx hunter ammo to, we would have to assume that they would not load longer than saami spec for factory ammo--IF this is the case then the OP's chamber would be shorter than a saami spec chamber--assuming that the smith chambered it as he stated then we would have to assume that the eldx would hit lands in his rifle at 3.36"??? that would be the saami spec max plus the .07" jump as a reference, the 162eldx hits lands at 3.4" in my saami chamber, and my accuracy node is at 3.345" so I have a .055" jump to lands-- where did the .070" jump to lands come from? we really need to know 2 things about this if we think it might be a "jump" problem--1st is what is the overall length that the factory 162 ammo is loaded to-- then, do the 162's really hit lands at .07" jump really if you have a custom chamber cut, you should probably be reloading your own ammo-- also when you tell the smith to cut the chamber for .07" jump you are giving him a specific task to do--as long as he did this you can't really blame him--a better thing to say might have been " cut the chamber so it shoots factory 162eldx ammo really good" then you would have been leaving the chamber cut up to him first I would check torque on bases, rings, stock/action screws etc -- was the stock free floated? does the stock have pillars, was it glass bed? have you tried tightening or loosening the action screws at all--- did you check the scope? maybe the OP has a scope issue and another scope would fix the problem? after checking all details then I would try different factory ammo to see if you can find which is most accurate for your combo just for reference [IMG]https://www.shootersforum.com/attachments/handloading-procedures-practices/39401d1474043344-hi-mv-7mmremmag-7mm-rem-mag-case-drawing.jpg[/IMG] [IMG]http://precisionrifleblog.com/wp-content/uploads/2012/10/saami-standardized-7mm-remington-magnum-chamber-dimensions1.png[/IMG] [/QUOTE]
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