View Full Version : How many grease grooves in a Lyman 429421?
03-24-2008, 10:37 AM
I just want to make sure there are supposed to be only one grease groove in my Lyman 429421 mould. After I resize and lube through my Lyman 45 lubesizer only one groove is filled with grease, the one nearest the base. Is there only supposed to be one or am I not adjusting something right on my Lyman 45?
03-24-2008, 11:16 AM
The top one is a crimp groove. Gianni
03-24-2008, 12:27 PM
Uncle Elmer only allowed one big square bottomed grease groove!
03-24-2008, 02:38 PM
Well that's a relief to know. If one was good enough for Elmer.........one is certainly good enough for me. I'll follow your guidance and use the top one for crimp.
04-01-2008, 11:41 AM
mine has the non Elmer approved round groove, but the same crimp grove. :-)
04-15-2008, 07:28 PM
I need to ask a dumb question! If you put lube in the crimp groove and then crimp it there is it a problem??:confused:
04-15-2008, 07:49 PM
I've done it. Didn't cause me any problem.
04-15-2008, 08:47 PM
i use the non elmer nose on mine but i like the square grooves
the only bad thing about exposed lube is it likes to attract dirt and stuff
i have used it as an extra lube groove and not crimped, had to rely solely on neck tension
for that load, worked well enough though.
04-24-2008, 07:44 PM
As long as you are not loading to a maximum you might seat the boolit so that you can roll the case (crimp) over the front of the dirving band. Just be sure it is a reduced load and not a maximum load as the deeper seated boolit will most likely increase the pressure.
04-24-2008, 08:01 PM
That's the only way a 429421 will cycle through my Marlin. Too long if it's seated to the crimping groove. It's hard getting it back out of the rifle!
05-06-2008, 12:22 PM
I have just received my Cast Bullet Association membership and with it came a manual on cast bullets. Quite informative.
One thing that struck me was the authors comments on revolver accuracy, especially the part about seating depth. Seems his thesis is to try seating the bullet out to a point where there is 0.1" or so between the bullet and the end of the cylinder which according to him assists in bullet stabilization. So, I loaded up a few w/my favorite load of 24 gr IMR 4227, WW case and WLP primers. Bullets sized to my throats and bore.
429244 My favorite so far.
and the RD 265 w/teflon tape as the design lends itself to the tape.
Shortest nose is the 429244, allowing more case volume.
429421 has longest nose.
RD 265 has no shoulder, so carefull.
Might not get a chance to test loads for a few weeks, but will try and remember to post results.
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