Cases too long?

39ford

I received a few 30-06 cases from my father-in-law and it looks like they are too long for the chamber.There is what looks like the imprint of rifling groves on the last .30 of the case and the imprints are aprox. .180 wide. Is this too long? The cases are in the lenght of max that speer sets.These are once fired cases btw and are shot from a custom gun.Thanks for the help

JudgeRoyBean

Trim to Length of a 30-06 springfield is 2.484 inches with a maximum length of 2.494 inches. Measure them and see for yourself if they're too long. My calipers are too short to measure from here so its up to you.......LOL!

Oh, and the marks you're seeing could possibly be "crimp marks" from the prior loadings....... Measure them!


Henry Ford stated: "There is no one more useless than a Convict, except perhaps, those that guard them. This was his reason NOT to hire either one of them!

v35

3/10" is a lot. A chamber cast might be in order. Since it is a custom rifle, it's possible the chamber is unfinished or screwed up although it'd be a hard job forcing a cartridge neck that far into the rifling during chambering.

1KYDSTR

Could these cases have been fired in a miltary surplus semi-auto? Lots of times to ease extraction, the manufacturers will flute the chamber. This involves machining longitudinal grooves into the chamber so that the fired case has less chamber wall to stick to. Just a thought.

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roysha

Are you sure you mean .30 and not .030? I'm inclined to think maybe, if it is indeed .030, what you are describing is actually a factory crimp. If you are actually as long as 300/1000ths too long, I don't see how you could even close the bolt on an empty case, much less a loaded round.

39ford

Sorry about the confution[:o)] it is infact.030'' long at the end these are once fired winchester factory cases .As someone mentioned they might be crimping grooves and that is quite possible.It just looks kinda long and dangerous to me.I measured them and they are within max length. Thanks again[:)]

JudgeRoyBean

Just got through reloading 250 Winchester Brass that was once fired from new factory ammo. The marks you describe are what remains of the original factory crimp. I trimmed my brass to 2.484 inches so I could use them with Winchester 147 grain FMJ bullets and get a consistent and good crimp. These turned out extremely nice after completed. I think you will find those you have probably would also. Trim and Size a few and see what you have.....you might really like them.


Henry Ford stated: "There is no one more useless than a Convict, except perhaps, those that guard them. This was his reason NOT to hire either one of them!