igofast85 Posted August 25, 2019 Share Posted August 25, 2019 I have started push through sizing my 40 brass in an attempt to reduce my case gauge failure rate. Unfortunately it hasn't helped much. I don't understand how a case can fail case gauge if it has been push through sized. Any help is appreciated. Thanks. Sent from my SM-T550 using Tapatalk Link to comment Share on other sites More sharing options...
Dwbsig Posted August 25, 2019 Share Posted August 25, 2019 Have you tried just a sized only case in your case gauge that will tell you when to problem is created. Also take your calibers and measure you loaded rounds to see if it’s to much crimp. Link to comment Share on other sites More sharing options...
Steve RA Posted August 25, 2019 Share Posted August 25, 2019 How do they fit in the chamber of your barrel ? That is really the most important reason to use a push through set up. Case gauges will usually be "tighter" than the actual chamber of the barrel. Try just a sized (pushed thru) empty case and then try one of your loaded rounds. That will let you determine if the case is sized properly and then determine if your loaded round has a problem. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted August 25, 2019 Share Posted August 25, 2019 Little more info would help. Link to comment Share on other sites More sharing options...
cvincent Posted August 26, 2019 Share Posted August 26, 2019 Perhaps it’s your bullet profile and/or OALSent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
igofast85 Posted August 26, 2019 Author Share Posted August 26, 2019 The cases (unloaded) do not all (~10%) fit the gauge. All will chamber in the pistol, but are sticky.Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
Steve RA Posted August 26, 2019 Share Posted August 26, 2019 Try a different die in your push thru device. (You did not mention which brand you are using) Link to comment Share on other sites More sharing options...
igofast85 Posted August 26, 2019 Author Share Posted August 26, 2019 Currently using a lee u die. Are there others known to be smaller?Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
N3WWN Posted August 26, 2019 Share Posted August 26, 2019 Where on the rounds are they failing to enter the gauge? The case mouth? The rim? Somewhere in between? If you haven't yet, try coating the rounds that fail with Dykem (I use Sharpie as an alternative) and see where they stick in your chamber or what portion is contacting the case gauge . It could be bullet profile engaging the throat/rifling of the chamber, non-concentric bullet seating causing the case to bulge a little to one side, etc. Do the cases gauge if the round is inserted backwards? Link to comment Share on other sites More sharing options...
HesedTech Posted August 26, 2019 Share Posted August 26, 2019 If they case gauge perfect after sizing then the problem is in your bullet seating. Crooked, oversized bullets, not quite enough bell or crimp or something else in the process. Link to comment Share on other sites More sharing options...
Furrly Posted August 27, 2019 Share Posted August 27, 2019 Those u die have been know to be defective, or have gone bad.. A little more info about what you are loading with help with feedback as well .. Bullets, OAL, and type of gun.. Link to comment Share on other sites More sharing options...
Sarge Posted August 27, 2019 Share Posted August 27, 2019 1 hour ago, Furrly said: Those u die have been know to be defective, or have gone bad.. A little more info about what you are loading with help with feedback as well .. Bullets, OAL, and type of gun.. Only die I ever had “go bad” was Dillon. U die has always been rock solid Link to comment Share on other sites More sharing options...
Furrly Posted August 27, 2019 Share Posted August 27, 2019 22 minutes ago, Sarge said: Only die I ever had “go bad” was Dillon. U die has always been rock solid I've had a different experience Link to comment Share on other sites More sharing options...
igofast85 Posted August 27, 2019 Author Share Posted August 27, 2019 Empty cases hang up at the web, I can see the rim and grove above the gauge. Curiously, if inserted backwards they drop all the way in. This doesn't make much sense to me. Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
igofast85 Posted August 27, 2019 Author Share Posted August 27, 2019 Also, how does a die go bad?Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
Steve RA Posted August 27, 2019 Share Posted August 27, 2019 It would seem from that the mouth of the case is the largest portion of the case. Perhaps the gauge gets tighter toward the lower end. Link to comment Share on other sites More sharing options...
AHI Posted August 27, 2019 Share Posted August 27, 2019 (edited) try sizeing the empty cases in your regular die ( the ones that failed) and re check Edited August 27, 2019 by AHI Link to comment Share on other sites More sharing options...
igofast85 Posted August 27, 2019 Author Share Posted August 27, 2019 The normal sizing die doesn't seem to change much.Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
N3WWN Posted August 27, 2019 Share Posted August 27, 2019 Are you push-through sizing with an undersize die or a regular die? Are you sizing again during reloading? If so, is that a U-die, too? Link to comment Share on other sites More sharing options...
igofast85 Posted August 27, 2019 Author Share Posted August 27, 2019 Push through with a u die. Traditional sizing with a standard Dillon die.Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
Steve RA Posted August 27, 2019 Share Posted August 27, 2019 You could get another U die and use it in the press instead of the Dillon. Also you could try the new one in your push thru setup and see if anything turns out different with the new die. Lee dies are usually correct - dimension wise - but I'm sure a non-spec one could slip thru every once and awhile. Link to comment Share on other sites More sharing options...
AHI Posted August 27, 2019 Share Posted August 27, 2019 I use this https://www.redding-reloading.com/online-catalog/3-g-rx-push-thru-base-sizing-die I beleve it sizes a bit smaller than the Lee set up.Also use redding dies to load. Link to comment Share on other sites More sharing options...
cvincent Posted August 27, 2019 Share Posted August 27, 2019 Hundo gauge? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
igofast85 Posted August 28, 2019 Author Share Posted August 28, 2019 Hundo gauge? Sent from my iPhone using TapatalkYesSent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
zzt Posted August 28, 2019 Share Posted August 28, 2019 I believe your problem is too much bell and it isn't getting completely removed in seating and crimping. I had the exact same problem with Dillon dies. A Mr Bulletfeeder expander/funnel will cure that and several other problems. It is a two step expander designed to hold the bullet vertically in the case so it doesn't tip when indexing. A benefit is you need only a microscopic bell and the Dillon seating dies takes care of that. I was not willing to spend the time push through sizing. I now load on a Hornady LnL with Hornady dies. I use the Mr Bulletfeeder expander, only seat with the Hornady seating die, and crimp with a Lee Factory Carbide Crimp Die. With this setup, the only failures I get in the Shockbottle/Hundo are caused by a too sharp extractor dinging the rim. I remove those, fill down the burr and the drop in fine. The Lee die resizes the case as it crimps. Link to comment Share on other sites More sharing options...
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