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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder Bump Range... What's Acceptable??
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<blockquote data-quote="milo-2" data-source="post: 2917872" data-attributes="member: 33622"><p>Like I said, after 3 firings, and now reading this, all your brass should be very close to uniform after firing.</p><p>My tip, fire new brass as you did, on the first firing, with the case deprimed, find 7-8 longest cases, these are ones that need the .002" bump, get your die set for these, then run all your brass through, you will be fine for the 2nd firing.</p><p>On the next trip through the sizer is when I will finally set my die for this chamber for good.</p><p></p><p>Once again, your die is set for a .005" bump, or you wouldn't be getting that much on a few cases. I am not a fan of Imperial lube, as I never seem to get a uniform lube unless I dip my fingers every case, doing so puts too much lube in the die, and on a RUM case, may result in hydraulic dents. I use one shot, or homemade lube, spray, let the cases sit for a day at least, go to work. No lube is needed on the necks or shoulder area, just the bottom half of the case body, I tip my cases upside down to spray them.</p><p>Per your post #43, a uniform bump now will not transform your 3/4" rifle into a 1/4" one, lot of factors playing here.</p></blockquote><p></p>
[QUOTE="milo-2, post: 2917872, member: 33622"] Like I said, after 3 firings, and now reading this, all your brass should be very close to uniform after firing. My tip, fire new brass as you did, on the first firing, with the case deprimed, find 7-8 longest cases, these are ones that need the .002" bump, get your die set for these, then run all your brass through, you will be fine for the 2nd firing. On the next trip through the sizer is when I will finally set my die for this chamber for good. Once again, your die is set for a .005" bump, or you wouldn't be getting that much on a few cases. I am not a fan of Imperial lube, as I never seem to get a uniform lube unless I dip my fingers every case, doing so puts too much lube in the die, and on a RUM case, may result in hydraulic dents. I use one shot, or homemade lube, spray, let the cases sit for a day at least, go to work. No lube is needed on the necks or shoulder area, just the bottom half of the case body, I tip my cases upside down to spray them. Per your post #43, a uniform bump now will not transform your 3/4" rifle into a 1/4" one, lot of factors playing here. [/QUOTE]
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Shoulder Bump Range... What's Acceptable??
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