TNBillyEarl
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- Jan 31, 2021
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I’ve seen factory crimp marks maintain through several firings, especially if no trimming is done.If they were 1x I would say that is a factory crimp mark.
That was my first thought, but the ring/impression is not close enough to the top of the throat. I always trim, chamfer, and de-burr b/t firings. My guess is that some of the Core-Lokts were crimped and some were not. Again, many thanks to all for weighing in.Tell you what the kinda looks like to me...
Someone trimmed them with a dull or poor trimmer...
Didn't de-burr them...
Then they got shot and sized a few times...
And that material just sort of smashed itself together on there
That's a factory crimp.Deer season ended yesterday. Tonight I was cleaning 7mmRM brass (R-P, 5+x fired) and about half the rounds had these small grooves/rings around the top of the neck. What is it? My resizer? A chamber (T3x) that has something odd cut in or out? Please advise...
B
View attachment 18776
I politely disagree...and just know my tone isn't malicious. That isn't some crimped and some weren't. If I had 10 million dollars I'd bet 9.5 it's not that but rather more an issue with what I suggested.( i could be poor then..lol) I'll explain...That was my first thought, but the ring/impression is not close enough to the top of the throat. I always trim, chamfer, and de-burr b/t firings. My guess is that some of the Core-Lokts were crimped and some were not. Again, many thanks to all for weighing in.
B
Can you post a picture of what you speak of? I'm certainly not arguing with you but something isn't adding up here...It’s a crimp. That rectangular high spot is where the fingers in the collet squeeze together and “pinch” the brass. You see the same thing with the Lee factory crimp die.
My apologies - yes I have noticed it prior but never got around to asking about it. I've learned I need to be much more precise with my problems on here. (There's a joke somewhere in there...) -BAnd all this material sitting there plus wasn't noticed prior?
Did you notice your case mouths aren't remotely squareMy apologies - yes I have noticed it prior but never got around to asking about it. I've learned I need to be much more precise with my problems on here. (There's a joke somewhere in there...) -B
Issue resolved.Here's a couple of pics. I hope the first one shows that the mouth is square and that the camera makes things look askew (note the base looking curved). Moreover, the second pic. In my bottom drawer I found some 220g .30-06 Core-Lokts from years back. They show the crimp pretty well. Again, thanks.
-B
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Late to this discussion, but that looks just like factory crimped ammo, and just like the crimp applied by the Lee Factory Crimp Die. BTW, that Lee die is really good for lever-action rifle cartridges.Deer season ended yesterday. Tonight I was cleaning 7mmRM brass (R-P, 5+x fired) and about half the rounds had these small grooves/rings around the top of the neck. What is it? My resizer? A chamber (T3x) that has something odd cut in or out? Please advise...
B
View attachment 18776
I noticed that the horse is dead. It drank way too much water while it was hot and foundered, dead. When I say dead, man I mean that horse stepped in a gopher hole and had to be put down dead. When I say dead I mean buzzards are fighting coyotes for butholes and eyeballs dead.Did you notice your case mouths aren't remotely square
Tube fed lever-action rifles.Late to this discussion, but that looks just like factory crimped ammo, and just like the crimp applied by the Lee Factory Crimp Die. BTW, that Lee die is really good for lever-action rifle cartridges.
Regards, Guy