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Hey team,
Was doing my first batch of case sizing last night and when I finished I noticed all bar 2 of the 30 cases I did had a small dent on the shoulder of the case (wasn’t there before sizing). What could be the cause of this? Die not set correctly? Too much lube? And are these cases okay to shoot? All the lengths are fine and within tolerances.
Any additional information would be appreciated.
Cheers, 7RMBoy
too much lube usually, also sometimes can be some dirt or something stuck up in the die. Give the die a clean out and try next time with less oil.
too much lube on the shoulder.
They'll disappear when you fire them.
When lubing your brass put none on the shoulder at all.
None? Isn’t it far more likely to get stuck that way? Already managed to get one stuck and was a big muck around to get it out
Definitely none on the shoulder of the case. Your stuck case had nothing to do with lube (or lack) of on the shoulder. Elsewhere, maybe.
None. The shoulder doesn’t slide in and out pressed against the die like the sides of the case do, it only contacts the die at the very end of the stroke (if at all).Quote:
Originally Posted by 7RMBoy
Okay, i’ll try that next batch. Just glad the cases are still sweet to use.
Cheers
yeah mate no lube on the shoulder and clean your dies out as it may have built up inside it
Brake cleaner?Quote:
Originally Posted by Bill999
I use brake cleaner to clean them after a while and it works a treat
For full length sizing I use the oiled stamp pad method and inevitably lube gets on the shoulder. I don't stress by getting an itty bitty cloth and wiping if off. The cases are only finely filmed, which is all that is needed after all. I have never dented shoulders and never had a case jam in a die. I sometimes use Imperial sizing grease (tiny tiny amount) and wipe that on using fingers then straight into the die, no probs.
As always, too much of anything is bad fer ya.
Excess lube build up inside the die as @ChrisW points out is one that can sneak up on you, but the in the OP's case it sounds like excess lube right from the start.
Brakleen is good stuff. I buy it a box at a time. Also used during my barrels cleaning. And lots of other uses but never yet used it on brakes.
I use vasoline on fingers..twirl case between them with other hand leaving small film on body of case...the neck is dipped in powdered graphite with steel shot added to it to make it move around better,sits in lid of small jar.
dent definately as others have said from lube on shoulder...rookie mistake MOST of us will admit to having made.
I use graphite power and steel shot 2 md works a treat for inside of the necks
pretty sure I saw the wee container of graphite powder in the warehouse of all places...Ive had a wee container for 25 years and havent looked like running out yet.
Anywhere that stocks tools will have it
Mitre 10 sells wee tubs of graphite
I used to dent heaps so switched to sizing die wax and never had an issue since
My 7mm08 dies are more susceptible to this as they're std Redding ones that aren't vented.
I'm more careful and use wax rather than my usual neatsfoot oil.
As stated doesn't matter a bit for shooting. Just looks a bit shit when handing over a batch to your mate for his rifle.
Graphite powder and imperial wax. Before then I was regularly denting cases....personality fault where more must be better.
Imperial sizing wax does the job.Quote:
Originally Posted by DLW
Use disposal gloves. Wee dab of wax on index finger. Transfer a spot to the case neck.
Gently rub neck and shoulder in fingers before full length sizing - ever had a stuck case or a dent.
Ultrasonic machine to clean, 120 C fan bake to dry, cool on towel.