Case head separation causes, identification and prevention when reloading
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- čas přidán 21. 11. 2020
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Erik Cortina shows you how to set up a FL sizing die • How to easily set up y...
Here's a quick overview on what causes case head separation, how to know if you're causing it and what you can do to prevent it.
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#fclassjohn #reloading #caseheadseparation
Thanks for the information and video. I follow you and Eric . Both of you have some great information about reloading and shooting.
I've just come to realize how important this subject is, and your video sealed the concept. Very glad I ran across this video and will be subscribing from here on. Thanks very much.
Good video John! People need to be aware of this issue and what causes it. 💪
Good information John and a great follow up to your last video. Thanks for sharing your knowledge.
Wow, I’m just now going through this same thing!! It’s with a new barrel and I’ve been in a hurry too. Thank you, thank you, checking my measurements out as soon as done commenting!! Much appreciated!!!
One of the best reloading videos I’ve seen! Thanks for the info.
Perfect timing. Fire forming two different calibers now. I was planning on doing the drop bolt technique from Eric’s video that I had seen before but the explanation of case head separation was great.
Thank you for another informative video. You and Erik Cortina are amazing in how you share the good accurate information for those of us wanting to learn before getting into the game
Great explanation - Thanks for clarifying this process for me.
Awesome video, thanks for sharing this!
I've researched this all day, and here's your video explaining whats going on. I installed a Bartlein 6mm CM barrel and have .006 difference between new Lapua brass and once-fired brass. The excess is also leading to primer problems too. Thanks for all the work you do putting these videos out there for us. Between you and Erik, I am now consistently .3in at 100 yards with my RPR in 6.5CM.
Great information. Thank you and keep it up
Great to know Thank you.
Man, Thank you for this. I measure all the times and on my second reloading I could not figure out how a 2 thousands shoulder bump set on my FL sizing die could have grown to 5! Now what you explained makes perfect sense. Thank you!
I've known for years not to shoot brass that looked like that after a few loadings, but never knew why, thanks for the explanation( i would never have guessed it was how i was sizing). When i saw that line on my brass, i would bend a paper clip and feel inside the case, if i felt a ridge , i trashed the case. The image from your bore scope really drives the danger of reloading that case home, i like the way you do stuff John, thanks
Great info - thx for sharing :)
Thanks much John! I think I’ll resize the body and neck only, no shoulder bump, until the 3rd firing. I also think it’s helpful to apply scotch tape (0.002 thick, which is easily confirmed using a guage before vs after applying the tape) to see if you’re within 2 or so of max base to datum line for your chamber. It’ll prevent bolt drop using a stripped bolt and will cause difficulty chambering. If no effect then apply 2 layers, etc.
Another great video!
I use a piece of piano wire, which I have the end bent at eighty or ninety degrees and then sharpened to a point. I drag/scrape the inside of the case, and any start of incipient separation is easily detected. Great video as usual! Thank you.
Good explanation and something i just learned first hand with my Dasher. 1st firing was fire forming BR brass, then I bumped it .001. After the 2nd firing the bump setting was a full .007 further forward than the previous setting. If had not checked i would be over sizing my brass.