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Long Range Hunting & Shooting
Why won’t my bolt close?
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<blockquote data-quote="Dell" data-source="post: 1693353" data-attributes="member: 80665"><p>Yes </p><p></p><p>Yes, you can bump the shoulders with standard FL resizing dies. You will need a brass shoulder measuring tool like the ones made by Whidden Gun Works. They attach to your calipers. You'll need to know where you are starting from on the shoulders in order to begin the shoulder bumping process. Then once your resize and shoulder bump is made, you'll need to measure to see what your bump is. I go .002 shoulder bump for my bolt guns and .005-.006 for my AR's. Go to You Tube and search Whidden Gun Works Resizing Video. It goes into easily understandable detail on setting a FL resizing die for proper shoulder bump. You can do it but I bet ya end up buying a FL shoulder bump die that takes collets for neck tension adjustment. I'm done forever with </p><p>"Expander Balls" in my sizing dies. Even the best "smoothest on the planet" expander balls can ruin concentricity for most reloaders if you are not meticulous about inside and outside neck lubrication. My brass run out after sizing without the expander ball (and being meticulous about neck tension) is .001 or less.</p></blockquote><p></p>
[QUOTE="Dell, post: 1693353, member: 80665"] Yes Yes, you can bump the shoulders with standard FL resizing dies. You will need a brass shoulder measuring tool like the ones made by Whidden Gun Works. They attach to your calipers. You’ll need to know where you are starting from on the shoulders in order to begin the shoulder bumping process. Then once your resize and shoulder bump is made, you’ll need to measure to see what your bump is. I go .002 shoulder bump for my bolt guns and .005-.006 for my AR’s. Go to You Tube and search Whidden Gun Works Resizing Video. It goes into easily understandable detail on setting a FL resizing die for proper shoulder bump. You can do it but I bet ya end up buying a FL shoulder bump die that takes collets for neck tension adjustment. I’m done forever with “Expander Balls” in my sizing dies. Even the best “smoothest on the planet” expander balls can ruin concentricity for most reloaders if you are not meticulous about inside and outside neck lubrication. My brass run out after sizing without the expander ball (and being meticulous about neck tension) is .001 or less. [/QUOTE]
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Why won’t my bolt close?
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