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Rifles, Reloading, Optics, Equipment
Reloading
Hard bolt Lift
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<blockquote data-quote="Hummer70" data-source="post: 2716847" data-attributes="member: 85770"><p>Several things may be going on with your rifle.</p><p></p><p>1. is it new and fired very little?</p><p></p><p>2. is the bolt hard to lift when chamber is empty?</p><p></p><p>3. on the ammo you are using does the bolt close easily or do you have to force it down to close the bolt?</p><p></p><p>If the rifle is new make sure it is unloaded and just cycle the action with the trigger taped to the rear so it does not sear up.</p><p></p><p>After about 500 actuations look closely at the bolt looking for shiny spots. Pay particular attention to the back of the locking lugs to see if there is equal contact on all lugs. If only one is shiny get some lapping compound and place it on the shiny lug and continue to work the action until the other lugs shows contact.</p><p></p><p>4. Check your ammo with a micrometer and measure the bottom of the case .200" up from the bottom of the case before and after firing the case.</p><p></p><p>5. Also measure the diameter of a new unfired round and and see how much expansion you have. Unless the rifle is set up for long range accuracy with a custom reamer the fired necks can be .002"to .005".</p><p></p><p>6 Check to see if your fired case is too long.</p><p></p><p>7. You could have a die problem. Had a friend who could not resize 300 Win Mag in his rifle and he wound up buying two more sets of dies and still could not get bolt to close. I checked it, unscrewed the barrel and set it back two threads and rechambered it with my match reamer and the fired cases went in just fine. The factory reamer was not machined right.</p></blockquote><p></p>
[QUOTE="Hummer70, post: 2716847, member: 85770"] Several things may be going on with your rifle. 1. is it new and fired very little? 2. is the bolt hard to lift when chamber is empty? 3. on the ammo you are using does the bolt close easily or do you have to force it down to close the bolt? If the rifle is new make sure it is unloaded and just cycle the action with the trigger taped to the rear so it does not sear up. After about 500 actuations look closely at the bolt looking for shiny spots. Pay particular attention to the back of the locking lugs to see if there is equal contact on all lugs. If only one is shiny get some lapping compound and place it on the shiny lug and continue to work the action until the other lugs shows contact. 4. Check your ammo with a micrometer and measure the bottom of the case .200" up from the bottom of the case before and after firing the case. 5. Also measure the diameter of a new unfired round and and see how much expansion you have. Unless the rifle is set up for long range accuracy with a custom reamer the fired necks can be .002"to .005". 6 Check to see if your fired case is too long. 7. You could have a die problem. Had a friend who could not resize 300 Win Mag in his rifle and he wound up buying two more sets of dies and still could not get bolt to close. I checked it, unscrewed the barrel and set it back two threads and rechambered it with my match reamer and the fired cases went in just fine. The factory reamer was not machined right. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Hard bolt Lift
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