armoredman
10-14-2010, 12:35 AM
...on the nice boolits this great new mold makes, but circumstances beyond my control have kept me off the range for a while. I SHOULD be able to get it together next week, hope and pray, so I started to get the press running to get some testers loaded up...and ran into something interesting.
For those who are new to the story, I have been using the Lee 160grain boolit for 7.62x39mm, and getting so so results. Enter in a great guy who sells me this nifty 5 cavity NOE mold, which after I was schooled on proper pre heating of molds, :wink:turns out a really nice boolit!
So here we are, got the standard empty dummy case to experiment/set up the seater, and lo and behold, the crimp groove appears to be a bit high.
Please forgive the horrible pictures, my son destroyed my camera, so I am using the nasty phone camera.
http://i16.photobucket.com/albums/b13/armoredman/casting%20stuff/shortboolit2.jpg
It's standing next to a Wolf HP for comparison. That is an OAL of 2.16, BTW, the manual suggests 2.18 with a 129 grain j-word bullet. Now, please, understand, I am not mad or upset about this development, just wondering, and excited to try something differant.
1) If I seat this to the crimp groove, with the lighter charges we use in cast loads, I shouldn't have to worry about pressure spikes? Or should I crimp in this lube groove at this OAL?
2) The mags seem to hold by case neck, so the round shouldn't slam itself against the front of the magazine and shorten themselves, I think?
3) Some boolits a really good guy sent me, Lyman 311359, has the crimp groove even farther forward, same questions? Nifty little pill, looking forward to trying it out, as well.:D
I am going to load some 18 grain testers with the boolit seated to the crimp groove, and try it out, just wondering what the board thinks.
For those who are new to the story, I have been using the Lee 160grain boolit for 7.62x39mm, and getting so so results. Enter in a great guy who sells me this nifty 5 cavity NOE mold, which after I was schooled on proper pre heating of molds, :wink:turns out a really nice boolit!
So here we are, got the standard empty dummy case to experiment/set up the seater, and lo and behold, the crimp groove appears to be a bit high.
Please forgive the horrible pictures, my son destroyed my camera, so I am using the nasty phone camera.
http://i16.photobucket.com/albums/b13/armoredman/casting%20stuff/shortboolit2.jpg
It's standing next to a Wolf HP for comparison. That is an OAL of 2.16, BTW, the manual suggests 2.18 with a 129 grain j-word bullet. Now, please, understand, I am not mad or upset about this development, just wondering, and excited to try something differant.
1) If I seat this to the crimp groove, with the lighter charges we use in cast loads, I shouldn't have to worry about pressure spikes? Or should I crimp in this lube groove at this OAL?
2) The mags seem to hold by case neck, so the round shouldn't slam itself against the front of the magazine and shorten themselves, I think?
3) Some boolits a really good guy sent me, Lyman 311359, has the crimp groove even farther forward, same questions? Nifty little pill, looking forward to trying it out, as well.:D
I am going to load some 18 grain testers with the boolit seated to the crimp groove, and try it out, just wondering what the board thinks.