Use of graphite inside neck prior to bullet seating

Why use it and how do you apply it?

As part of my brass prep, after FL sizing, I set neck interference with a mandrel. I dip case neck into graphite (has tiny shot in the jar as well); wipe outside, press in mandrel. Then use mop to get excess graphite out. Make bullet slide in easier too

I have used lockez and neo lube#2 and both work well. Both help with bullet seating.

Copy. Have you compared with to w/o graphite for ES or SD?

I use Neo-lube in case necks. I actually just ran a comparison check with once fired brass no neck lube vs Neo-lube. I shoot in long range matches where ES/SD are major factors, so looking for the smallest ES/SD as possible.
Results were not conclusive (small 5 shot groups). 300 WSM, 200.20X Berger bullet had the largest average velocity difference, but ES/SD very little difference (Neo-lube velocity 2944, ES 16.1, SD 6.2) - (no lube velocity 2963, ES 18.0, SD 7.4).
220 gr Berger Long Range - Neo-lube velocity avg 2859, no lube velocity avg 2860. Not much difference.

yes, before using the mandrel (only FL sizing / bushing), the ES / SD s were about 5-7 higher. Saw a vid by an ELR shooter that was adding the mandrel process with graphite dip so I tried it and did a bit better as noted so I guess the process was worth the effort. YMMV

Before using graphite , research what it can do to certain metals . Also it depends on why and how you are reloading . If you’re a Benchrest shooter and you are loading for a match where you will be shooting the next or that day and cleaning you rifle after very few shots it would be ok . If you are a hunter and you reloading for the season I would recommend Moly . Moly is a metal inhibiter . It lubricates and prevents the 2 different metals from bonding , Copper and Brass . This is important especially if the loads are going to be around for a while . When the metals start to bond pressure will be different and there for ES/SD are poor . World class Benchrest shooters also Moly . I don’t load and leave them sit on the shelf long . I use Moly , I use a mop to apply . I have my case totally ready to load with primer in and turn it upside down so when I moly it doesn’t trickle into the primer tap it once on the side of the bench its ready for powder then bullet . Some world class Shooters believe that the two metals start bonding right away . Thats why they moly . Some even Moly the bullet . Remember they look for .100 in there groups . I do use a dry graphite on my necks when sizing outside and in . I dip it into the beads neck first . I wipe it off and proceed . I’m no Scientist . I just do my research and only listen to world class Champions which I am neither BUT I have shot groups in the 0s and 1s and have some good ES/SD .

Thanks for the in-depth reply. It begs the question…why not just use moly coated bullets if they’re even still available? I’ll be shooting 1000 yd. prone again after a 20 year hiatus.

Eric Cortina - F class 1000 yards / Alex Wheeler - 1000 yard Bench Rest / Lou Murdica - Benchrest / Bryan Zolikov Benchrest . Here are some World Class , International Champions / Benchrest Hall of fame shooters that have great Youtube videos . Some use graphite some use moly . and as far as using moly bullets , I don’t know of anyone doing that any more? Maybe David Tubbs ? but you would get much better results with Berger bullets that have won many competitions and using some Moly on the inside of necks . Check these guys out , Don’t take my word for it . Good luck and keep Shooting .

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Hello Brooks.. The only time I use graphite inside necks is on “virgin / unfired” brass. EXAMPLE: I just got a new barrel about 5 months ago. It is chambered in 6.5 x 47 Lapua. It shoots the Berger 144 LRHybrid. I have a match coming up this weekend BUT I loaded back in November last year. I loaded them about 20thou long. Just this week I set them to their correct seating depth. I did NOT hear that “snap” I would have got had I not used graphite. SOOOO the questions then becomes “Why not just use graphite and seat them to the correct seating depth when you first loaded them?” ANSWER: Because I have had it BOTH ways>>> no need to seat long and I hear that “snap”. EITHER way, it is a good idea to use powdered graphite inside the necks on UNFIRED brass. After firing, a good “carboned-up” neck brush is all I use and never experience issues.

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Thank-you to all for your detailed responses. I’m most grateful. God’s blessings, Brooks

Use it to stop galling and I put it on a q-tip, dipping the q-tip into the plastic container and apply it to 3 case necks then re-dip the q-tip, turn case upside down and tap it on the bench to remove excess graphite.

I make long range precision rifles and have shot in competition myself for a long time. I tried graphite for a while once. I live by 3 simple rules:

  1. If it makes your 1000 yard groups smaller do it.
  2. If it doesn’t make your 1000 yard groups smaller, don’t do it unless it is fun.
  3. If it makes your 1000 yard groups larger, don’t do it.

Graphite was a 2 and it consistently made such a mess that I learned new cuss words. It wasn’t fun. I now use a light spray of One Shot. That dries instantly and doesn’t contaminate powder. Neck tension has not wrecked my groups as long as I turn necks diligently and use bushing dies with the right bushing.

I do the same. Thank-you

I too use neo-lube2. I notice tha bullet seating is effortless like you would have very light neck tension.

I can’t prove nor care to test that it makes my groups smaller as I just started using it on my last 2 batches of reloads. Maybe down the road

I use it to prevent any metal to metal welding as I have rifles that might only get fired every 1 to 2 years.

Is that a sign that I have more than I need? Guess there is no such thing as having 2 many!