With a piezoelectric transducer system measuring peak pressure in the case while its burning powder is pushing bullets our the barrel and inside the primer cup pressing on the pocket wall.How would i measure the pressure?
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With a piezoelectric transducer system measuring peak pressure in the case while its burning powder is pushing bullets our the barrel and inside the primer cup pressing on the pocket wall.How would i measure the pressure?
With a piezoelectric transducer system measuring peak pressure in the casecwhile its burning powder is pushing bullets our the barrel and inside the primer cup pressing on the pocket wall.
I've used them for 20 years in LC brass with no issues of any kind. My AR has over 8k thru it, still a tackdriver.Aren't CCI 400's a no no for use in an AR anyway?
https://www.shootingsoftware.com/pressure.htmI meant i dont have a system to do that nor does anybody i know
No./No.@Bart B.
Do you have/use a: "piezoelectric transducer system" ?
Don't know of any individuals who do either, just a couple companies (Western Powders in Miles City, MT for one).No./No.
I think it is a bad idea to use CCI 400's in an A/R.
I have never heard of these "ring dies" enhancing the life of brass two-fold or more by saving the primer pockets. If I find that this is factual through a high number of people who all attest to this - I will definitely consider ordering one. Frankly, I'm not believing that the die is compressing the cases enough to do this - especially without creating more problems with thinning the cases for separation. It would be interesting to hear more people talk of their experiences with those dies. I do know that, regardless of what kind of sizing die is used, one needs to bump the shoulder at least .003" to provide safe loading. That promotes case stretch on every firing - and the cases will become thinner as a result of this brass flow and the ensuing case trimming. Doing that to a case 30 times that is fired in a bolt gun will end up in the same result. That is why full-length sizing with most any factory die will cut case life in half or more. But this "ring die" not only eliminates the side effects of a factory die - but enhances it 100%? C'mon!
You might move to Tula/Wolf primers when the pockets feel loose with the CCI's. I use brass until I can easily push a seated primer out with a pin I made out of a coat hanger.CCI 400
The Tula/Wolf is definitely bigger. Too bad they are no longer available.You might move to Tula/Wolf primers when the pockets feel loose with the CCI's. I use brass until I can easily push a seated primer out with a pin I made out of a coat hanger.
How long will the brass last? There's no telling, it depends upon how hot you load them.
As far as loose primers etching bolt faces - who cares with an AR? Bolts are cheap & plug-n-play.
I do not shoot hot loads with any primers.Oh yea, OP, please do not use CCI400 .223 primer for hot loads... If you want to know why, do a search...
I probably should add that by hot loads I assume you are talking about max listed loads in the manuals or above max loads like some folks report.I do not shoot hot loads with any primers.
I did the search and there was a lot of disagreement on this subject. I have shot a significant number of CCI 400s in my AR reloads and have never had a problem. But if there is a potential problem then I sure want to avoid the problem but do not want to change unless it is necessary. The Sierra manual shows they used the Remington 7 1/2 for their data. CCI makes a No. 41 that is in a black and white box that says for 5.56 ammunition.Oh yea, OP, please do not use CCI400 .223 primer for hot loads... If you want to know why, do a search...