By Lyman's images, the 429421 has 1 crimping groove and 1 lube groove. Your bullet has 2 crimping grooves, a lube groove, and a stepped heel for a gas check. I hate being the bearer of bad news, but in comparing the bullet in your picture to the images associated with the Lyman 429421, your bullet isn't a 429421! Just for reference, I have been casting for 60 years and own 100+ Lyman moulds, including 6 429421! Your mold is not a 429421, at least the pictured bullet isn't as I said before! It isn't adjusted properly if you want to lube all grooves! It is not necessary to fill all grooves however. It can be adjusted to allow filling of however many grooves you want. The screw on the bottom of the sizer body is the depth stop. Harder alloys exert more pressure against the G die which helps the pressurized lube from pushing the bullet up when you relieve pressure on the handle to eject the bullet. This allows a better seal with the bullet base and helps to prevent lube from getting under the bullet. Old H dies (bottom punch) are flat on the top end, while later ones (about the last 40 years or so ) are concave. One problem you may have is the age of the sizing die set. As others said, seat the gas-check when sizing. If your bullet mold is marked 429421 then it is mis-marked! The bullet you show a picture of is a gas-check design, and probably is a 429244. That's actually why I acquired the press, because I'm intending to go the gas check route in the future. Thanks guys, but this is not a gas check bullet. So, anyone have any ideas why this happens?ĮTA: Also, I'm having some problem with the top groove not filling fully but I suspect that might just be a matter of working enough lube into the bottom part of the press.ĮTA Again: In a couple of posts I'm going to create some confusion about which mold I'm using which I will clear up in post 11. I'm wondering if it's maybe the wrong die and the correct one doesn't have fewer vertical holes. If I recall correctly, it has 4 vertical holes and 4 rows of them around the die. I've adjusted the ram depth from way up to all the way down with no effect. See how much lube is going UNDER the bullet? Happens every time.
Pics below should explain what's going on.
I normally use the LEE sizer on my reloading press and liquid Alox. No heater and I have not heated it but have a hair dryer and a heat gun if I need them. I disassembled the press, cleaned out all the old lube and put a brand new tube of Lyman Alox in there. But I'm having an issue with too much lube being extruded into the die. Last winter I acquired an old Lyman 45 bullet lubricator/sizer and finally had time to set it up.
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