okdoesthiswork

No this is not just wasp waist. Part was Dillons video recommended the sizing die be set down right next to the shell plate. Doing so made them to small and so I learned to back off. Often the case just above the base being too big to gage. So then I get some rolled and then I size them and this was better but still way to many rounds that would not gage right. There has been an enlarged portion at the case next to the base and then a ring pushed out around the base of the bullet either or both preventing gaging. Not oversizing and setting bullet depth a little shallower and flipping the seater to round nose has eliminated most problems now. Going through the learning curve I guess as there is no one I can find locally to spend part of a day with me to mentor.

Thanks for the help all. A miniscule shorter seating depth made for a lot of improvement. Going to try the round nose seating die idea tomorrow. It does not seem to be case specific insofar as which one bulged the worst.

I have varied the flare up to the point of too much just to see. I have gone fast and slow and in between and slowed down the stroke at each end of handle movement and all I do is reduce the failure rate. Many of these will not fit the case gage and if they done my Glock wont shoot them. One of the things that puzzles me is many times it seems to be 180 degrees around the case is bulged much more than the rest. I am getting up to a 10% failure to gage at times and I cant keep wasting stuff trying to find the answer.

I have a problem that baffles me. I checked the brass in question with a case gage before loading and they are fine. Bought prepared and also some I have done that were rolled so good even taper on the brass. Bullets measure .355 and I have used 124gr FMJ, Winchester 147gr JHP and Federal 147 HST JHP. The bulge is not case maker specific. I have reduced the bulge rate by going slow and twirling the bullet in the top of the case as it is going into the seating die. I have adjusted everything I can think of and tried different shell plates too. Now above and beyond this other things are going on too. For instance the adjustment on the side of the powder dispenser where that plated bracket ties into that formed rod has a lobe that supposed to touch the casting when the handle is pulled all the way down. Well I cant adjust this to just touch and instead it hits pretty hard. The powder bar seems to have play in it going in and out and does not seem to meter to a hard stop. I am going to try Dillon this week to see what they have to say but what I would really like is to find a mentor in southern middle Tennessee who is familiar with the dillon rl750 and might be willing to stop in or have me drive over there to meet.