I just loaded up and shot my 5th firing using 6.5cm alpha munitions ocd LRP brass with one charge weight pretty stout. I didn't puncture a primer or have any signs of pressure even though a couple shots were at around 2900 and those shots i got a clicker which ive never had before. I anneal every firing and normally dont fire really stout loads. Usually around the 2750 mark. This was win staBall 6.5 and I went up a bit too highto start but what im wondering is with those pieces of hrass that were clickers is that round now a clicker from now on or is that just a result of such stout load? I didn't have a heavy bolt lift or anything.
Clickers
- Thread starter JRBullock1987
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- 6.5cm alpha brass clickers
I have had clickers in a few cartridges from running stout loads. In my 300PRC Imp they didn’t start until the 5th firing. Sometimes it can be from a slightly oversized die. But if you’re not getting them with normal loads it’s probably from running stout loads. Once you run the brass that hot the clickers usually don’t go away with sizing. You can measure the base of the case just above the extractor groove and compare it to brass that was fired with mild loads and I’m sure it will be .001-.002 thou larger.
What is the base dia of your brass right above the extractor groove and then at the .200” mark? If your brass is too big for your chamber then you will get clickers that can’t be prevented by sizing. If your chamber is big enough then you might be able to get rid of the clickers with a small base die.
I'm cleaning the ones I just shot right now and will measure and get back to you. It was 17 total shots and I believe it was only 2 pieces of brass I got the clickers with. Like I said in my initial question...usually i only hit the 2750s and only hits the 2800s a couple times with different loads so I dont normally shoot hot loads. I find when I get up into the 2800s my loads most of the time start to open up but it was 140gr eld match bullets and staBall6.5 which is a first time for this powder. I didnt want to pull the bullets and since I wasn't getting any significant pressure signs besides a bit of primer flattening I shot all 5 rounds at that top charge weight. And 2 of them had clickers happen. So just measure slightly above the the extractor groove.... I'll measure them compared to other foreformed brass I haven't resized yet that weren't hot loads and let you know here in a bit. I use rhe sac sizing die which does size the base a bit more than some other dies and have always used that die with my 6.5cm brass. So will that eliminate the clickers? Or do i need to find those cases that measure more and toss them?
Respond to what I wrote to 918v and let me know what you think? I didn't want to retype everything but there's? S in there that you might be able to answer and expound upon. Thanks
Watch the "does your die fit your chamber" and the "clickers" video, they sort of go hand in hand.
www.wheeleraccuracy.com
I call "clickers" when the base of the brass isnt getting sized enough to fit the chamber properly and is beyond the spring back threshold so its always jammed. Primarily due to a mismatch between sizing die and chamber, doesnt take pressure to induce clickers, its more material.
It sounds like you dont have "clickers" so much as you have just a simple case of over pressure rounds swelled up in the chamber. Yes the base swelled but also everywhere else contributing too. Same symptoms, just a slightly different cause. One will be present on subsequent firings and one wont.
So when you size, make sure that the .2 base line on your brass is going down at least half a thou from the sized dimension. If it doesnt at all you may have a case of the clickers going forward. A different die that has a smaller base dimension by a thou or a "small base" die thats a couple thou smaller and maybe that puts them back small enough to cure the clickers. Only one way to find out and thats... to find out.
Videos | wheeleraccuracy
www.wheeleraccuracy.com
I call "clickers" when the base of the brass isnt getting sized enough to fit the chamber properly and is beyond the spring back threshold so its always jammed. Primarily due to a mismatch between sizing die and chamber, doesnt take pressure to induce clickers, its more material.
It sounds like you dont have "clickers" so much as you have just a simple case of over pressure rounds swelled up in the chamber. Yes the base swelled but also everywhere else contributing too. Same symptoms, just a slightly different cause. One will be present on subsequent firings and one wont.
So when you size, make sure that the .2 base line on your brass is going down at least half a thou from the sized dimension. If it doesnt at all you may have a case of the clickers going forward. A different die that has a smaller base dimension by a thou or a "small base" die thats a couple thou smaller and maybe that puts them back small enough to cure the clickers. Only one way to find out and thats... to find out.
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Resize the cases using your normal process and see if they shoot fine, or not. The Cortina mandrel dies will size the case base down about .001 smaller than the normal sizing die and is kind of built to take care of the clicker issue. But spending that money to save 2 cases isn't very cost effective. However, if you are looking for a mandrel die now you have an excuse to buy one.
Cool appreciate it broWatch the "does your die fit your chamber" and the "clickers" video, they sort of go hand in hand.
Videos | wheeleraccuracy
I call "clickers" when the base of the brass isnt getting sized enough to fit the chamber properly and is beyond the spring back threshold so its always jammed. Primarily due to a mismatch between sizing die and chamber, doesnt take pressure to induce clickers, its more material.
It sounds like you dont have "clickers" so much as you have just a simple case of over pressure rounds swelled up in the chamber. Yes the base swelled but also everywhere else contributing too. Same symptoms, just a slightly different cause. One will be present on subsequent firings and one wont.
So when you size, make sure that the .2 base line on your brass is going down at least half a thou from the sized dimension. If it doesnt at all you may have a case of the clickers going forward. A different die that has a smaller base dimension by a thou or a "small base" die thats a couple thou smaller and maybe that puts them back small enough to cure the clickers. Only one way to find out and thats... to find out.
Ok thanks ill process the brass amd keep track of what two were the clickers amd see what happens.
It depends on everything else. If your brass has a big base and your chamber is small in diameter then you might not have enough clearance for the brass to do its thing and spring back enough to extract easily. For example, say your chamber is .470” in diameter and your brass is .469” in diameter, that is not enough clearance because the case head diameter will prevent the sizing die from sizing the case walls at the .200” mark down far enough to overcome the springback from sizing. So you’ll end up with a sized case with a .4695” diameter and clickers.
But if your brass is .467” then a small base die has more room to work with and you might end up with a sized case measuring .468” and no issues whatsoever.
So it depends on your chamber diameter, your case dimensions, and your sizing die interval dimensions. This claim that the die sizes brass .001” more than a standard sizer die doesn’t mean anything. There is too much variance between different brands of dies and different brands of brass for that to be taken as gospel.
