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Posted: 9/5/2009 8:19:25 PM EDT
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Howdy everyone,
When I try to get the bullet seat die in the correct place, for overall length I start high and slowly screw the die in operating the press each time. I get the length correct, but when I screw down the retention ring to keep the die in place, and then go to seat the next bullet it seats WAY too far. I make sure the actual die doesn't move at all when screwing the retention ring down, so I dont know what I'm doing wrong It also seems that when I am trying to get the seating correct, the bullet sometimes goes in sideways elongating the case mouth. I was able to make 2 good rounds out of 12 attempts. I'm using a lee turret press with RCBS FL dies and bullet seater with an RCBS case holder. |
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I described how to adjust the seating die in step 12 here http://www.ar15.com/content/page.html?id=469 as for the bullet not seating right use boat tail bullets. If you're using flat tail bullets you'll have to chamfer the inside of the case mouth. You might want to switch to Hornady dies, they have a floating sleeve that makes the bullet straighten up before its actually seated |
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Quoted: You might want to switch to Hornady dies, they have a floating sleeve that makes the bullet straighten up before its actually seated That; Or you could purchase the RCBS Competition Die Set, which makes bullet seating incredibly EASY and accurate. Also, get a Precision Mic for the caliber(s) you're loading for. You can change bullets / seating depths in about 30 seconds using both tools. Modest investment, but it will make your loading life pleasant instead of a pain in the arse. :) |
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Even when tightening the die body, the length changes as the free play is taken from the threads. 1/64th of a turn of the die body changes the depth by a little more than 0.001 inches, and it's about impossible to prevent the die body from any movement while tightening the lock ring.
I recommend screwing the die body down (with the crimp ring clear of the case mouth), then fine tuning the seating depth with the seater stem. |
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