Brushing lube into rifle necks

When im reforming 270 into 30.06 ill put some imperial in the neck. It does help a lot. I will stay with dry tumble. I find some pretty bad looking range brass. A few hours in the tumbler it looks great. I use a dash of mineral spirits and polish in my media. It's a blend of corncob and walnut. One thing i noticed. As the media gets worn. The action in the tumbler slows. I use the old media in another tumbler. To knock off coal dirt and other dirt's. Before giving a final tumble.

Yes i clean once fired too. Good insurance to protect your dies.
 
I’ve noticed the same result as the video on page 1 - lower spreads and lower SD’s when neck lubing wet tumbled brass. I grew up dry tumbling then brushing necks - to knock out big carbon and evenly distribute fine carbon, then eventually got a Forster bench brush and experimented with fine mica powder and graphite powder. Now, I spray Hornady 1 shot on my necks from two sides before sizing and rock on. Plenty of lube for sizing, the mandrel smears it around on the inside of the neck, then I get 1) less resistance in seating, 2) more consistent resistance in seating, and 3) lower velocity spreads.

Since there’s no extra burden for me, no extra case handling, no tedium, I just spray and load, AND I get the improved consistency, it’s a no-brainer for me.
 
Assuming some jump to the lands, and especially if it's a good jump to the lands, too little neck tension can open ES & SD numbers back up.
 
Walkalong said:
Assuming some jump to the lands, and especially if it's a good jump to the lands, too little neck tension can open ES & SD numbers back up.
Click to expand...

But there’s a difference between bullet pull resistance due to commensurate neck tension (Normal force) and resistance due to increased friction coefficient, and ESPECIALLY that and resistance due to stiction. ;)

Effectively the difference in grab, grip, and stick.
 
My fear of lubing the bullet. Would be powder contamination. Yes some lube claim they do not affect powders. I rather not chance it. When i lube the case neck. I remove the lube after sizing.
 
CoalCrackerAl said:
My fear of lubing the bullet. Would be powder contamination. Yes some lube claim they do not affect powders. I rather not chance it. When i lube the case neck. I remove the lube after sizing.
Click to expand...

Seems like a good reason for concern. I was considering the possibility of lubing the bullet along the shank, but maybe not quite all the way down. Then any excess lube remains on the outside of the case mouth. But I have no experience doing this, so I'm just throwing out the idea.
 
Varminterror said:
But there’s a difference between bullet pull resistance due to commensurate neck tension (Normal force) and resistance due to increased friction coefficient, and ESPECIALLY that and resistance due to stiction. ;)

Effectively the difference in grab, grip, and stick.
Click to expand...
This is true, I can have .004 dimensional difference ( bullet hold) between a loaded round and a sized round and still smooth seating just by reducing friction with a nylon brush to the carbon left in the neck, while the opposite is also true where a .002 difference can have a excess friction and be course to seat a bullet.
 
@Walkalong @Nature Boy @South Prairie Jim - do you guys know any folks in BR or F-class which still seat bullets slightly over length during primary loading, then finish seat before matches? The driving principle, of course, being to break the “cold weld” between the case neck and bullet which develops over time (effectively stiction). I used to hear this pretty frequently, even recall talking to Cortina several years ago about it, but I haven’t heard much about it in recent years.

I typically never run the risk of having my PRS match ammo more than ~36 hours old before matches so I know the ammo is fresh (pretty commonly only ~6-12hrs old when fired), so cold weld never has a chance to bite me in the butt anyway, but I’m curious if anyone is still “final seating” these days or if it has withered away.
 
I’m seeing a trend here: the search for shiny brass and saving time has resulted in harder seating and more time spent on case conditioning. The solution is to smudge up the shiny - which takes up more time and space - trying to get the same results as can be had by just using the old not-as-shiny-brass method of case prep. Am I missing something?
 
I use the Imperial wax, and the beads and graphite as well - the beads are ceramic. You have to be a bit careful about dipping the necks in, if there’s any lube on the neck you’ll get the ceramic beads as well.
I’ll typically size and load at the same reloading session and there’s still graphite on the necks for the bullet seating step. I’ve never run any comparison tests on bullet seating.
 
Wet tumbling is all the rage, and I did listen as the old br guys grumbled about stupid clean cases have no good carbon in them.
Click to expand...

BR is often wipe off the exterior and brush out the neck (nylon brush) and it’s ready.

It’s not like, pistol gun games, where you might load thousands of rounds at a time and need to clean thousands at a time and shoot them out over a month or two.

It’s a much smaller production rate and fewer per run. Not a lot of “stiction”, if you just seated it.

0576BC0D-9C15-4F53-BCF4-05F53D4899E3.jpeg
 
Nature Boy said:
AJC1 said:
I'm considering running a set dirty just for testing.....
Click to expand...
It would be interesting to run a test of lubed vs not lubed and see what it does to es & sd
Click to expand...
FWIW, I did this mini myth busting to test residual effects of lube inside case neck and bullet setback - https://www.thehighroad.org/index.p...affect-on-neck-tension-bullet-setback.834035/

Outcome?

Myth busted for One Shot which produced no bullet setback wet or dry. (BTW, I posted as "BDS" before retirement)

OK, back to OP.
 
jmorris said:
BR is often wipe off the exterior and brush out the neck (nylon brush) and it’s ready.

It’s not like, pistol gun games, where you might load thousands of rounds at a time and need to clean thousands at a time and shoot them out over a month or two.

It’s a much smaller production rate and fewer per run. Not a lot of “stiction”, if you just seated it.

View attachment 1146800
Click to expand...
I’ve seen a case like that in matches, been quite a while now though…..
 
Varminterror said:
@Walkalong @Nature Boy @South Prairie Jim - do you guys know any folks in BR or F-class which still seat bullets slightly over length during primary loading, then finish seat before matches? The driving principle, of course, being to break the “cold weld” between the case neck and bullet which develops over time (effectively stiction). I used to hear this pretty frequently, even recall talking to Cortina several years ago about it, but I haven’t heard much about it in recent years.

I typically never run the risk of having my PRS match ammo more than ~36 hours old before matches so I know the ammo is fresh (pretty commonly only ~6-12hrs old when fired), so cold weld never has a chance to bite me in the butt anyway, but I’m curious if anyone is still “final seating” these days or if it has withered away.
Click to expand...
I think it sounded like a thing but it’s really not for guys like me that leave the carbon in the necks.
 
Nature Boy said:
If most are like me, they procrastinate to the point where they’re up late the night before the match finishing their loading.
Click to expand...
What? You mean you don't load them ahead of time to stabilize the powder charge temperature and keep them in ice chest (Definitely keep them out of sun light) on match day to maintain muzzle velocities? ;)
 
I’ve loaded rounds two weeks early without issues that are detectable, I’ve taken down rounds after a match with a small puller that feel the same as a round made that same day.
 
I recently posted my load procedure for loading the Dasher, and someone commented on how many times I brushed the necks, basically after I did anything to the case.
 
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