CLEANING INSIDE CASE NECKS

[J&J Custom Rifles]

Was just wanting to pick a few of yalls brains to see how other people were prepping there brass after fired. specially inside the necks do you use brass brush nylon brush? or whats the best ways some of yall think. thanks john

 

[xswanted]

I usually use a brass brush wrapped with a patch then sprayed with case lube. Seems to work pretty good.

 

[SDDasher]

Nylon brush, then neck sized on a Wilson die then dipped in dry media lube (moly dust) then resized through a sizing mandrel and then loaded. Gives very consistent neck tension.

 

[tclaunch]

Montanna Extreme nylon brush.

 

[lpreddick]

many , including me, believe leaving a little bit of stuff inside neck is good. a VERY shiney neck will result is a type of bonding between bullet and brass...often referred to as "cold bonding". a LOT of discussion on this was on this site. this 'bonding" results in a "popping" sound when the bullet is seated deeper. my experience, as others. is that shooting such rounds can result in a big variation in velocity, thus accuracy. if however, such rounds are seated long then chambered with bullet going into the lands thus seating deeper into the neck, this bond is broken and mv variation may not be an issue. try this...polish a bullet and inside neck with flitz or isso or metal polish, seat bullet and wait a few days or longer, the seat the bullet .005 thous deeper and you will probably hear the "pop".

 

[Bradley Walker]

In my tests it didn't do crap. I wouldn't. Either clean all the way, like Ultrasonic, or don't clean at all.

 

[Bradley Walker]

try this...polish a bullet and inside neck with flitz or isso or metal polish, seat bullet and wait a few days or longer, the seat the bullet .005 thous deeper and you will probably hear the "pop".

So?

 

[dansig]

I put one of these

on one of these

and clean the inside of the neck, speed about 80%

the neck will be clean and shiny without using any lubricants or chemicals.

just a quick push & pull in the neck, the mop turns over 100 rounds in that second... 8000rpm at 80%

 

[J&J Custom Rifles]

Thanks for the responds. Intresting hearing what people do different.

 

[Bob3700]

My necks end up pretty clean. So just before seating a bullet, I take the case neck and insert it in a small container of BBs that have been coated with graphite powder. Makes the bullets seat easy and also coats the naked interior of the neck with with a dry lubricant.

Bob

 

[Steve Blair]

Montanna Extreme nylon brush.

[br]
Works for me, too. I run it in a drill press on low RPM. It processes cases quickly and the carbon residue is very uniform.

 

[bozo699]

Thanks for the responds. Intresting hearing what people do different.

Yes it is ridiculous, not any two answers the same. I would never Knock anything Tclaunch would have to say as he is a champion shooter and my friend but the only one I agree with is lpreddick, the necks should be brushed but not totally cleaned, no solvents of any kind is needed imo squeaky clean necks is never a good thing, I would rather not touch them at all as to over clean them. I find the most consistent seating pressure is when I give 5-10 good stokes with a nylon brush just prior to charging and seating.
Wayne.

 

[pmarauder]

Thanks for the responds. Intresting hearing what people do different.

I would never Knock anything Tclaunch would have to say as he is a champion shooter and my friend but the only one I agree with is lpreddick, the necks should be brushed but not totally cleaned, no solvents of any kind is needed

Wayne, I believe Tim was referring to the Montana Extreme brand of Nylon brush...and not using the Montana Extreme solvent in conjunction with a Nylon brush for his necks.....But I could be wrong.... Maybe he can clarify. I myself use a Montana Extreme stiff Nylon brush chucked in a drill to brush em with.

 

[bozo699]

Thanks for the responds. Intresting hearing what people do different.

I would never Knock anything Tclaunch would have to say as he is a champion shooter and my friend but the only one I agree with is lpreddick, the necks should be brushed but not totally cleaned, no solvents of any kind is needed

Wayne, I believe Tim was referring to the Montana Extreme brand of Nylon brush...and not using the Montana Extreme solvent in conjunction with a Nylon brush for his necks.....But I could be wrong.... Maybe he can clarify. I myself use a Montana Extreme stiff Nylon brush chucked in a drill to brush em with.

Derek,
In that case I agree 100% with Tim and you, I use the same process except I use a rcbs case prep station with the Montana nylon brush, thanks for clearing the montana extreme thing up for me I was definitely thinking solvent
Wayne.

 

[Bradley Walker]

Derek,
In that case I agree 100% with Tim and you, I use the same process except I use a rcbs case prep station with the Montana nylon brush, thanks for clearing the montana extreme thing up for me I was definitely thinking solvent
Wayne.

I tried this. I even BUFFED the inside of the case neck using polish. It had the 2nd smallest effect of all factors I tried for seating bullets (including dry lube, painting moly lube, painting graphite lube, etc among others---the first was dry lube which appeared to do nothing at all). I found that the greatest factor for effecting seating force is (by far) the amount the neck is sized, and the seating force goes through the roof at .002" of interference.

At .0005" of interference (unturned, full thickness Lapua necks) I can nearly seat the bullet with the Wilson die by pushing it with my hand, which I figure is about right. My groups have agreeing with me also...

 

[bozo699]

Derek,
In that case I agree 100% with Tim and you, I use the same process except I use a rcbs case prep station with the Montana nylon brush, thanks for clearing the montana extreme thing up for me I was definitely thinking solvent
Wayne.

I tried this. I even BUFFED the inside of the case neck using polish. It had the 2nd smallest effect of all factors I tried for seating bullets (including dry lube, painting moly lube, painting graphite lube, etc among others---the first was dry lube which appeared to do nothing at all). I found that the greatest factor for effecting seating force is (by far) the amount the neck is sized, and the seating force goes through the roof at .002" of interference.

At .0005" of interference (unturned, full thickness Lapua necks) I can nearly seat the bullet with the Wilson die by pushing it with my hand, which I figure is about right. My groups have agreeing with me also...

Bradley,
If that is working for you my friend,...don't change a thing!! I agree with you on less tension
Wayne.

 

[mikecr]

I agree with Wayne, lpreddick, and tclaunch.
Just a quick run through with a nylon brush.

This will provide for consistent seating.

 

[spclark]

I used to run case necks over a bronze bore brush spinning in my drill press @ ~ 150 RPM. Then I started cleaning cases with the SS media / detergent method.

Haven't haf to clean a case neck since.

 

[Hammer47]

Is the Montana brush the real dark blue one?

 

[Steve Blair]

It's the one that looks like this.