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Rifles, Reloading, Optics, Equipment
Reloading
Need Advice on Using Expander Mandrels
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<blockquote data-quote="QuietTexan" data-source="post: 2381947" data-attributes="member: 116181"><p>Honestly not a super simple question to me because while the mandrel might not require lube just for sizing neck lubrication does impact bullet seating. So depending on your overall cleaning and loading process you might still want to use something. </p><p></p><p>If you ultrasonic or wet tumble you might be better off with adding dry graphite back and mandrel expanding is a chance to dip the case neck before you run it through the press so carbide vs steel doesn't necessarily matter. You could also dip the neck or bullet right before seating and expand with the mandrel without lube.</p><p></p><p>If you anneal, AMP states that dry graphite doesn't adhere as well after annealing so you might be better served by a wet lube. If you use a spray or wet lube you might have to clean or brush the neck anyway to get any out that got in there before trying to go back to a dry lube inside the neck, or you can mandrel the necks when they're wet before cleaning.</p><p></p><p>If you don't clean at all other than maybe rubbing the brass by hand you still need to brush the necks out. I get greenish-blue flecks inside necks if I don't clean them pretty fast after shooting (and especially if it's damp) which is probably copper oxide which should be less hard than brass or carbide, but still you'd want to clean them up before you size.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2381947, member: 116181"] Honestly not a super simple question to me because while the mandrel might not require lube just for sizing neck lubrication does impact bullet seating. So depending on your overall cleaning and loading process you might still want to use something. If you ultrasonic or wet tumble you might be better off with adding dry graphite back and mandrel expanding is a chance to dip the case neck before you run it through the press so carbide vs steel doesn't necessarily matter. You could also dip the neck or bullet right before seating and expand with the mandrel without lube. If you anneal, AMP states that dry graphite doesn't adhere as well after annealing so you might be better served by a wet lube. If you use a spray or wet lube you might have to clean or brush the neck anyway to get any out that got in there before trying to go back to a dry lube inside the neck, or you can mandrel the necks when they're wet before cleaning. If you don't clean at all other than maybe rubbing the brass by hand you still need to brush the necks out. I get greenish-blue flecks inside necks if I don't clean them pretty fast after shooting (and especially if it's damp) which is probably copper oxide which should be less hard than brass or carbide, but still you'd want to clean them up before you size. [/QUOTE]
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Need Advice on Using Expander Mandrels
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