Discussion in 'Handloading and Reloading' started by SC_Dave, Feb 17, 2020.
Not all carbide sizer rings are made the same - Most use straight carbide ring but Lee carbide sizer ring is tapered, like the tapered profile of 9mm brass
Some carbide sizer rings have sharp, squared die opening while Lee tapered carbide sizer ring has radiused opening
Most USPSA 9mm Major match shooters do not mark their brass and will not reuse the brass. They leave these overly expanded brass for unsuspecting reloaders to wonder why it takes much more effort to resize some 9mm brass
Dry tumbling brass in media treated with NuFinish liquid polish leaves light coating of residual polymer which helps with resizing effort
Wet tumbling brass leaves brass surface squeaky clean (Think more friction)
Even when resizing 9mm brass on Pro 1000, especially with new linkage and ergo handle, I did not need to lube my 9mm brass. I have always dry tumbled my brass and for most of my reloading years have used NuFinish polish (Recently using Turtle Wax polish) with great results in terms of polishing and residual polymer on brass keeping brass tarnish free.
When 9mm Major brass started showing up, I noticed greater resizing effort and now chamber check these brass and if they won't pass the plunk test, I will attempt to resize again and if brass fails the second time, consider the brass overly expanded (Think thinned case wall) and toss for recycling.
Now using Auto Breech Lock Pro (I guess Lee is back to calling it Pro 4000 ), resizing 9mm brass is easily done and resizing 40S&W/45ACP brass is effortless (Well, it was almost effortless on Pro 1000 too).
These are not my brass picture but shows the scrape mark resizing some overly expanded brass with some brand resizing die could result - https://www.thehighroad.org/index.php?threads/9mm-resize-die.863126/page-2#post-11381953
These are brass resized with Lee tapered carbide sizer ring - I think the radiused die opening helps smooth out even overly expanded brass and with tapered carbide ring, resize brass without scraping.
I lube regardless carbide or steel that's just me, it is less friction. Quick matter to just spray lube them all at once.
Hope this helps.
no carbon residue. And then I'll just lube the first couple and then one every 15-20.
Carbon residue actually makes a nice little lubricating layer. I like shiny brass, but I don't want it literally squeaky clean.
+1. I did notice the same when initially resizing new Starline brass but I just applied more force on the ram lever.
I am using RMR "BrightFired" brass that have been wet tumbled for some of my test loads and they resize just like dry tumbled brass in my Auto Breech Lock Pro - https://www.rmrbullets.com/shop/cases/pistol-cases/9mm-luger-parabellum/9mm-luger-brightfired-brass-cases-1/
Dry tumbled 9mm brass on the left and RMR wet tumbled brass on the right
I've been using a fair amount of Shooter's Connection roll-sized 9mm brass over the last year which seems to have been wet tumbled. I think some wet tumbling leaves something on the brass, and some processes/detergents take off everything. As long as there's some kind of film left, it's all about the same.
I don't need to lube 9mm brass using my Lee die, but a l little lube makes the whole process less effort.
Since I normally do a 1000+ at a time less effort is a good thing.
But these days my old joints like to put a smidge of lube on every 8 or 10th case. Man is that nice.
That's my excuse. "Nah, I don't need to lift today... I'm filling a can with ammo."
Try it, you'll like it.
It may well be a function of age. I had a buddy over last week who reloaded 1600 9mm rounds. He didn't use any lube, but he's also less than half my age
( LiveLife ) <------- Had to retire early at 53 due to spinal stenosis (Choose your parents carefully!) and after 600,000+ rounds reloaded, still loads around 500 rounds per reloading session without lubing 9mm cases.
( LiveLife ) <------- Actually dozed off at the press during a 1000 round 45ACP reloading session 7 years ago. Now can doze off at the press at will.
( LiveLife ) <------- Consummate brass hound - Uses Unger grabber and Garden Weasel nut gatherer to pick up brass from ground if spinal stenosis induced back spasms flare up.
( LiveLife ) <------- Suffers from glaucoma with a touch of cataract but thankful for not suffering from arthritis and shaky hands (yet).
( LiveLife ) <------- Suffers from high blood pressure and gets irritated when scope crosshairs jump with heartbeat and have to shoot between heart beats.
( LiveLife ) <------- Suffers from Type 2 Diabetes and keeps chocolate candy bars at the bench (But eats them anyways even when not shaky from low blood sugar)
( LiveLife ) <------- Takes dogs for walks but dogs drag him back home. When wife/daughter suggest to go on a coastal hike, asks if the trail is flat.
I resist! I defy laws of friction!
I refuse to lube 9mm cases ... for now.
10 years from now, I could be saying praises for lubing 9mm cases.
Using the power of the dark side requires only half the effort leaving more energy for dog walks.
Even though I use wash and wax (wash and wax makes it easier than dishwashing liquid) in my wet tumble depriming/resizing with a small shot of Frandford/Dillon lube in a bag of 500 or so works wonders.
Actually, I was seduced by the "slippery side" of lubing the case when I did the myth busting thread on residual lube on case neck (inside) affecting neck tension and bullet setback - https://www.thehighroad.org/index.php?threads/myth-busting-residual-lube-affect-on-neck-tension-bullet-setback.834035/
And yes, lubed 9mm cases absolutely reduced the amount of effort needed to resize the brass and ever since, I have agreed that lubing brass will reduce resizing effort.
But often thread titles don't ask whether lubing 9mm brass reduces resizing effort. Often they are posed as "Is lubing 9mm brass necessary for resizing with carbide die?" like this thread's OP
And of course, lubing 9mm brass is not necessary when using carbide resizing die.
Does lubing 9mm brass reduce resizing effort? Absolutely!
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