memilanuk
Gold $$ Contributor
Hello there,
Been noticing more brass build-up on certain parts, such as the expander mandrel I use for opening case necks up for neck turning, or my Lee Collet die, or even the polished expander balls I use in my Redding or Forster bushing dies.
On the expander mandrel (K&M), I generally *do* use a small amount of lube (Imperial sizing die wax or some equivalent thereof - currently Hornady) around the lip of the mouth and/or on the mandrel itself, but I still get a 'ring' of build-up right at where the taper transits to the main body diameter.
On the mandrel of my Lee Collet die, I've been getting build-up mainly around the area under the collet. This was most noticeable when expanding the mouths on a bunch of very mangled virgin Winchester .308 brass. Generally I *don't* use lube with this die, as it normally doesn't seem to need any otherwise.
On the Redding and Forster bushing dies... I've started seeing some build-up of brass on the expander balls when re-sizing cases that have been cleaned either ultrasonically or via stainless steel media i.e. with very clean i.e. bare metal, necks.
Some sort of additional lube seems like the obvious answer, but the question is 'what', along with 'how' and 'how do I get it *off*'? I've tried using lubes like Imperial die wax in the necks in the past, but it makes powder kernels stick and plug the neck unless I clean the cases *again*. Neco moly/BBs works, but is messy as all heck especially in conjunction with any *external* sizing lube. Any other ideas or suggestions?
TIA,
Monte
Been noticing more brass build-up on certain parts, such as the expander mandrel I use for opening case necks up for neck turning, or my Lee Collet die, or even the polished expander balls I use in my Redding or Forster bushing dies.
On the expander mandrel (K&M), I generally *do* use a small amount of lube (Imperial sizing die wax or some equivalent thereof - currently Hornady) around the lip of the mouth and/or on the mandrel itself, but I still get a 'ring' of build-up right at where the taper transits to the main body diameter.
On the mandrel of my Lee Collet die, I've been getting build-up mainly around the area under the collet. This was most noticeable when expanding the mouths on a bunch of very mangled virgin Winchester .308 brass. Generally I *don't* use lube with this die, as it normally doesn't seem to need any otherwise.
On the Redding and Forster bushing dies... I've started seeing some build-up of brass on the expander balls when re-sizing cases that have been cleaned either ultrasonically or via stainless steel media i.e. with very clean i.e. bare metal, necks.
Some sort of additional lube seems like the obvious answer, but the question is 'what', along with 'how' and 'how do I get it *off*'? I've tried using lubes like Imperial die wax in the necks in the past, but it makes powder kernels stick and plug the neck unless I clean the cases *again*. Neco moly/BBs works, but is messy as all heck especially in conjunction with any *external* sizing lube. Any other ideas or suggestions?
TIA,
Monte