New bullet making Thread

Kind of a left field question,but let's see if anybody knows ?
So I'm core seating some 6mm jackets on a RC-2 and I notice that the thin film of oil that I put on my die threads has set up a perimeter bead between the lock ring and the threaded insert on top of the RC-2. As my core seating pressure reaches peak I notice the bead of oil sucks into the gap.As the peak pressure lets off the bead of oil returns. So I am literally lifting the die up off the press with my core seating stroke( I don't know,maybe a thou ?). Now everything is as tight as practical,the core seating is going just beautiful,so there's no problem with the set-up but I can't help but think " man ,that's a lot of pressure"-----then I start to think about( lot of time to think when you're making bullets !) barrel torque and what happens when we fire a rifle. The same thing has to happen to the barrel when the pressure builds,it has to literally try and pull itself off the action ? I mean if there were no threads we would shoot the barrel right off the gun. I know some rimfire's and pistols are press fit but produce nowhere near the pressure that centerfire rifles produce. No wonder our rifles shoot better with heavy barrel torque.
What kind of pressure do you think a rockchucker produces while core seating a 6mm jacket ?
Joel
 
Joel i think George will confirm this think chamber pressures in a high velocity rifle.
A good press like your using can make some serious pressure/ Its possable to make 30 cals on a rockchucker up to 150 grs. Little tough on the arm after a while but the bullets look great and measure great.
I'm thinking of a different press some time for the 30's
 
Dan,i would guess in the 125 maybe up to 130 grs. but this is just a guess i don't do many 30 cal. bullets and no one has asked this for a die. hope this helps, also ogive would dictate this. george
 
geo.ulrich said:
Dan,i would guess in the 125 maybe up to 130 grs. but this is just a guess i don't do many 30 cal. bullets and no one has asked this for a die. hope this helps, also ogive would dictate this. george
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Thanks George, I'm using a Blackman .308 die with 8 ogive, just thought I'd try a 120gr bullet in my 17 twist.

Dan
 
After you guys squirt your cores, what are you using to hold the jackets when you insert the cores? do you use something similar to a loading block to hold the jackets while you insert the cores?
 
andre3k said:
After you guys squirt your cores, what are you using to hold the jackets when you insert the cores? do you use something similar to a loading block to hold the jackets while you insert the cores?
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Being a small operator I grab a lubed jacket w/my right hand and a clean core in my left hand, insert core in jacket and point up. I know that the bigger bullet makers have boards didicated to loading the cores into the jackets, I haven't checked into that yet. I know my method is a lot slower, but I'm retired and that is why I squirt my own cores as well. Sometimes I wish I didn't have so much time on my hands.:D

Dan Honert
 
Dan,
I do the same thing (clean hand, dirty hand) just completed my first bucket of jackets. I make 112s' and 118s'.
john
Mims,Fl.
 
I do mine the same way Clean hand and dirty hand. The other way some talk about has something to do with boards and blocks. My cores are tapered so they have to go in one way. A few squirt dies are made , in a way as to there is not top or bottom. They are rounded on both sides. I have seen some photos where the cores are in a tray with holes in it. The blocks with the jacket are underneth them . You shake or push the cores around and they fall into holes that line up with the jacket trays. Then you have a jacket and a core inserted and ready to seat. {looks like more work to me].
It must be a system for mass production . I take it slow and easy, I'm looking for better quality instead of a high production rate.
 
Dan H said:
Being a small operator I grab a lubed jacket w/my right hand and a clean core in my left hand, insert core in jacket and point up. I know that the bigger bullet makers have boards didicated to loading the cores into the jackets, I haven't checked into that yet. I know my method is a lot slower, but I'm retired and that is why I squirt my own cores as well. Sometimes I wish I didn't have so much time on my hands.:D

Dan Honert
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OOPs, I mean seat cores then point up after all the cores are seated.

Dan
 
George, or anyone with experience. I am getting a shiny ring around the base of my bullets when pointing up. What would cause this, maybe not enough lube? Blackman steel dies 8 ogive, 30cal., 118gr. The bullets shoot good, it just doesn't seem right to me.

Thanks
Dan Honert
 
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Dan,
I have the same thing, I think it is something with the steel dies, you can take 0000 steel wool and clean it up. Again that doesn't do anything with how the bullet shoots just the way they look. There is a lot of difference between $500 and $3000 dies.

john
Mims, Fl.
 
("George, or anyone with experience. I am getting a shiny ring around the base of my bullets when pointing up. What would cause this, maybe not enough lube? Blackman steel dies 8 ogive, 30cal., 118gr. The bullets shoot good, it just doesn't seem right to me.
Thanks
Dan Honert ")

I noticed the same thing. But under magnification it also appeared to be scratches. I started seeing it at the time Quality Machine took over from Spevco. I also noticed the pointed up bullets were slightly harder to eject from the die. At the time I emailed Karla (since retired) and asked if they had changed the composition of the brass. As far as I could determine this only showed up with people using steel dies. Ans as stated it did not affect the performance of the bullets.

JimP
 
Jim, its just a slight scuff mark where the pressure ring rubs against die on ejection. not a big deal alittle more lube may help. george
 
I have a bit of a problem, I am making 118gr 30cal bullets on Blackmon dies and using his horizontal press, I can't keep the squirt die tight in the ram. Is anyone using the same setup experiencing this problem? Is there a fix to this problem other then giving the die a little twist to tighten every couple of cores? I have found that if you don't pay attention to this small PITA your core weights are all over the place. Actually I think it is a big pain, having to constantly stop to tighten really slows down a already slow, boring and mindless job. Also, I know about Charlie Hood, I just like to say, I did it the old fashioned way, from start to finish.

Thanks
Dan Honert
 
Dan H said:
I have a bit of a problem, I am making 118gr 30cal bullets on Blackmon dies and using his horizontal press, I can't keep the squirt die tight in the ram. Is anyone using the same setup experiencing this problem? Is there a fix to this problem other then giving the die a little twist to tighten every couple of cores? I have found that if you don't pay attention to this small PITA your core weights are all over the place. Actually I think it is a big pain, having to constantly stop to tighten really slows down a already slow, boring and mindless job. Also, I know about Charlie Hood, I just like to say, I did it the old fashioned way, from start to finish.

Thanks
Dan Honert
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Dan, try a good quality, nicely fitting, O-ring - it will make a pretty decent 'lock-nut' and also keep the die aligned with the threads, as opposed to the potential of a non-perpendicular ram-shoulder. Good shootin'! RG
 
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