Charlie does use cool tool, that being said if you don't use the cores right away like if you leave them laying around for a year they begin to oxidize....
Obtain and read RIFLE ACCURACY FACTS, by Harold Vaughn - in chapter 8, Bullet Core Problems,Since I'm having some difficulty with the manufacturing process, I was getting neurotic about cleaning it. After washing it 3 times with acetone, I was still boiling the core with TPS and then with white vinegar.
Lubricating the core was one of the last things I would have thought of doing.
But isn't the fact that it doesn't harm the bullet due to the fact that most custom bullets makers produce for calibers with a very slow twist (1/13 for 6 PPC and 1/17 for 30 BR?)
For 6mm bullets with a weight of 105,or 30 caliber 200 grains , which require a fast twist, is lubrication still a good idea?
*** I know I have to find out for myself, but I'd like to hear from those with more experience.
its just that easy ....I decided to try the lubed core operation on my 6mm bullets.
I bought a 1 gallon stainless colander set. I poured it 2/3 full of acetone, then added enough ATF to give it a light pink tint.
I then put 350 clean cores in the colander and submerged it into the liquid. I let it soak for a few minute, and then took the colander out and let them dry over night.
Yesterday morning, I core seated 350 jackets, and early this morning pointed them up.
The finished bullet is close to .0002 fatter than the previous ones done with clean and dry cores. The pointed up really nice with no anomalies.
We have the Texas State LV/Sporter this week end in New Braunfels. I am going to (try) take off tomorrow and test these bullets against the previous ones.
The first bullet measurement is bullets I just made, the next the one is the bullets with clean cores.View attachment 1656680View attachment 1656681
Jackie, after testing several of the practices, and making some pretty decent "wet" cored bullets @ few customer requests, except for those few [large] custom orders, I stayed with "squeaky clean" (dry) cores . . . My dies don't need the diameters getting any larger.Randy. Unless I missed it, you haven’t said whether you use squeaky clean cores or some type of personal formula as a lube that makes your 30 caliber Bullets as great as they are.
Also, since I look at consistent excellency in Match Performance as a gage, I would like to have some inside info on what Wayne Campbell does in his operations. He obviously makes an excellent bullet.
Thanks for the reply, Randy.Jackie, after testing several of the practices, and making some pretty decent "wet" cored bullets @ few customer requests, except for those few [large] custom orders, I stayed with "squeaky clean" (dry) cores . . . My dies don't need the diameters getting any larger.The clean dry cores produce very consistent bullet [shank] diameter, if making for only myself, a couple of 0.0001s wouldn't matter. "Pressure-ring" diameter, "is-what-it-is", and from jacket & lead wire LOT-to-LOT will be different.
As compared to "wet" cores, I "like" the extremely small probability of variation the dry core method provides. Though it does add a potential variable, with a little common sense, even the wet method should be quite controllable & predictable.
With the pressure involved, I'd bet that most of the lube is evacuated - as would be most air. Several years ago, pal, Terry & I observed bullet production at the Sierra plant: the cores on their GREAT 168 Gr. International HP BT were getting seated with a LOT more lube than I would have imagined!RG
I have no idea how many Ferris made, but the one I saw was a work of artAny idea how many presses Ferris pindell made like that.
I know of one still being used.
Of course, George is correct.sometimes jackets are preformed before seating cores as in long range bullets the 3 jackets are preformed.
the photo of the 2 seated cores the one on the left was seated without preforming the one on the right was preformed before core seating. about the only difference is the radius size on the corners and it takes way less core seating pressure with the preformed jackets. I have also had customers that had me make core dies to match that the boattail was also preformed on the core. you get a real nice sharp corner preforming.
sometimes jackets are preformed before seating cores as in long range bullets the 3 jackets are preformed.
the photo of the 2 seated cores the one on the left was seated without preforming the one on the right was preformed before core seating. about the only difference is the radius size on the corners and it takes way less core seating pressure with the preformed jackets. I have also had customers that had me make core dies to match that the boattail was also preformed on the core. you get a real nice sharp corner preforming.