RG Tips?

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  • #487442
    dannyhunley
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      I had my first experience with a 4-cavity RG mold this weekend using the hollow point pins on a 255 grain 45 caliber SWC mold.  I had a heck of a time getting the slugs to drop free of the pins.  I am an experienced caster with a number of NOE molds, but this is my first RG.  The mold was preheated to about 375 – 400 degrees and I was using a 700 degree Lyman #2 melt.  I tried adding a bit more heat to the pins, but it didn’t seem to help.  The mold cavities and the pins were finished nice and smooth — no burrs, snags, etc.  I also tried smoking the pins (and cavities).  I did make some pretty bullets but the pin problem made it really hard to keep enough speed to maintain temperature of the mold.  Obviously, I am missing something.  Does anyone have a tip (or two)???  Thanks in advance for your help.

      Dwayne

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    • #492243
      charlesgilbert
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        Well…. you said the pins were slick…. but just to say what I do, I spin em between my fingers in some 800 grit til I can see myself in them. You can use 1000 grit, if you got it. Scrub off the smoke and shine them babies up! Then I keep a Qtip that is very lightly dampened with sprue lube close by, and I rub it around the tip of the pins before I start, and again about every 30-40 casts, and that keeps them jumping off. Just a very little bit will do ya, and it won’t migrate to the cavities that way. If you get the mold and pins hot, and use just a micro film of lube on some really glass-smooth pins, I have never seen a NOE that won’t practically throw the boolits at you then, when you open the mold.  8)

        #492244
        adamsutherland
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          Concur.

          I have found that just cleaning and lubing the pins to be more than sufficient for the boolits to drop, polishing as well will only enhance this.

          #492245
          dannyhunley
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            EXCELLENT, guys — this makes perfect sense and I’m not sure why I didn’t think to try it.  Thank you very much, Beagle333 and dromia!

            #492246
            adamsutherland
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              When I am seasoning my moulds, usually on top of the cast iron stove, after it has heated up and cooled down a couple of times I then apply the sprue plate lube to the block pins, mould top and sprue plate a swell as any pins on a hot mould and let that season in with the other heating and cooling cycles. With the mould lube less is more.

              #492247
              dannyhunley
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                Thanks, dromia.  I heat cycled the mold before I started using it — 3 cycles. — bringing it up to 400 degrees each time and letting it cool to <100 degees.  And, I lightly lubed the alignment pins before I made the first cast and I lubed the under side of the sprue plate and top of the blocks once the first pour was in the cavities.  I did not, however, think to lube/season the pins.  That will happen before the next use.  And, I'll uber-polish with some 1000 grit as Beagle333 recommends.  Again, may thanks for the advice!  Dyayne

                #492248
                SwedeNelson
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                  dwayne

                  A lot of the information in our casting hint post applies to RG moulds too
                  http://noebulletmolds.com/smf/index.php/topic,2.0.html

                  The biggest problem we see is trying to cast with cold HP pins.
                  Don’t even try or the frustration level will go way up.

                  I hope this helps
                  Bullet maker, maker
                  Al Nelson

                  #492249
                  dannyhunley
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                    Thanks, Al.  I was familiar with this guidance and I have used it religiously with a number of your molds (with great success).  The HP pins are what gave me the issues.  I’m pretty sure I had them hot as I even used a propane torch to boost them a few times and checked them with a 400 degree temp’ crayon.  Smoking them helped some — but it was a far cry from a free release.  I’m going to give them some extra polish with 1000 grit paper, re-season them and then try a bit of lube on the tips.  I’ll get ’em working.  Thanks for your note. 

                    #492250
                    cliftonmorris
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                      I find that I have better luck with hollow points if I roll the mold toward the pin clips before tapping to open the mold. This gets the bullets into the bottom side . I then roll the mold to the right and tap again. The pins sliding in the clips helps knock then bullets free.

                      #492251
                      williamhogan
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                        I took the lazy route, I chucked the pins up in a cordless drill and slowly spun them with some 1500 grit sand paper, after that I smoked the pins with a butane match.
                        keep the pins hot and problem solved.

                        #492252
                        jeffreyharned
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                          A smooth surface reduces surface tension so polishing everything never hurts.

                          Some casters have had good results using Kroil penetrating oil as a release agent. I will be trying it myself shortly. Let the mold cavities / pins soak in Kroil over night then start casting.

                          #492253
                          kevinwengren
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                            Cal50,
                            keep us posted on the Kroil.

                            #492254
                            Full.Lead.Taco
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                              And cast fast to prevent the pins from cooling.

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